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Email: lahan@ph.lacounty.gov
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LAHAN Archive 2013-2022

The Department of Public Health (DPH) emails priority communications to health care professionals through LAHAN. Topics include local outbreaks, emerging health issues, immunizations, and drug shortages. To receive LAHAN communications, click the ‘subscribe’ button. It takes less than a minute to sign up. DPH will not share your contact information.

LAHAN Communication Types
Alert: Conveys the highest level of importance; warrants immediate action or attention.
Advisory: Provides important information for a specific incident or situation; may not require immediate action.
Update: Provides updated information regarding an incident or situation; unlikely to require immediate action.
Information: Provides general information that is not necessarily considered to be of an emergent nature.
2023-24 HAN Communications
To see current health alerts:
Please click here
2022 HAN Communications
December 23, 2022
 CDC Health Advisory
Increase in Pediatric Invasive Group A Streptococcal Infections PDF | Web/Mobile
December 21, 2022
 CDC Health Update
Important Updates on COVID-19 Therapeutics for Treatment and Prevention PDF | Web/Mobile
December 14, 2022
 CDPH Health Advisory
Evaluating and Managing Travelers Returning from Ebola Outbreak Areas with Infectious Disease Symptoms PDF | Web/Mobile
November 29, 2022
 CDPH Health Alert
Reminder to Prescribe COVID-19 Therapeutics to Mitigate Impact of Winter Respiratory Surge PDF | Note: CPDH revised and reissued the alert on 12/2/22 as Reminder to Lower Barriers to Prescribing COVID-19 Therapeutics to Mitigate Impact of COVID-19
November 18, 2022
 CDC Health Update
Update on Managing Monkeypox in Patients Receiving Therapeutics PDF | Web/Mobile
November 16, 2022
 LAC DPH Health Advisory
Increases of Flea-Borne Typhus PDF | Web/Mobile
November 10, 2022
 LAC DPH Health Update
Antiviral Treatment and Chemoprophylaxis for Influenza Infection During SARS-CoV-2 Co-Circulation PDF | Web/Mobile
November 7, 2022
 CDC Health Update
Update on Ebola Virus Disease (Sudan ebolavirus) Outbreak in Central Uganda PDF | Web/Mobile
November 4, 2022
 CDC Health Advisory
Increased Respiratory Virus Activity, Especially Among Children, Early in the 2022-2023 Fall and Winter PDF | Web/Mobile
October 31, 2022
 CDC Health Advisory
Outbreaks of Nontuberculous Mycobacteria Infections Highlight Importance of Maintaining and Monitoring Dental Waterlines PDF | Web/Mobile
October 20, 2022
 LAC DPH Health Update
Fall Influenza and COVID-19 Vaccination PDF | Web/Mobile
October 6, 2022
 CDC Health Advisory
Outbreak of Ebola virus disease (Sudan ebolavirus) in Central Uganda PDF | Web/Mobile
October 5, 2022
 CDPH Health Advisory
Guidance for Safe Specimen Collection From Monkeypox (MPX) Lesions: Reminder to NOT De-roof Lesions and NOT Use Sharps PDF | Web/Mobile
October 3, 2022
 CDPH Health Advisory
Early Respiratory Syncytial Virus Activity and Use of Palivizumab PDF | Web/Mobile
September 9, 2022
 CDC Health Advisory
Severe Respiratory Illnesses Associated with Rhinoviruses and/or Enteroviruses Including EV-D68 – Multistate, 2022 PDF | Web/Mobile
September 9, 2022
 LAC DPH Monkeypox Update
Severe Disease, Testing, and Vaccine Eligibility PDF | Web/Mobile
September 8, 2022
 LAC DPH COVID-19 Updates
New Booster Recommendations, Observation Period, Co-Administration PDF | Web/Mobile
August 30, 2022
 CDC Health Advisory
CDC Health Advisory: Variant Influenza Virus Infections: Recommendations for Identification, Treatment, and Prevention for Summer and Fall 2022 PDF | Web/Mobile
August 23, 2022
 LAC DPH Health Advisory
Recent Report of Polio Case in Rockland County, New York PDF | Web/Mobile
August 12, 2022
 LAC DPH Health Update
Monkeypox Updates Including Expedited Testing for PEH and Alternative JYNNEOS Dosing PDF | Web/Mobile
August 1, 2022
 CDC Health Update
Monkeypox in People with HIV, Children and Adolescents, and People who are Pregnant or Breastfeeding PDF | Web/Mobile
July 29, 2022
 CDC Health Update
Update for Clinicians on Testing and Treatment for Monkeypox PDF | Web/Mobile
July 27, 2022
 CDC Health Advisory
Melioidosis Locally Endemic in Areas of the Mississippi Gulf Coast after Burkholderia pseudomallei Isolated in Soil and Water and Linked to Two Cases – Mississippi, 2020 and 2022 PDF | Web/Mobile
July 27, 2022
 LAC DPH COVID-19 Update
Therapeutics for SNFs, and Novavax PDF | Web/Mobile
July 21, 2022
 LAC DPH Health Update
Monkeypox Updates Including Provider Webinar Friday, July 22 PDF | Web/Mobile
July 14, 2022
 LAC DPH Monkeypox Update
Vaccine Referrals & Expanded Commercial Laboratories PDF | Web/Mobile
July 12, 2022
 CDC Health Advisory
Recent Reports of Human Parechovirus (PeV) in the United States—2022 PDF | Web/Mobile
July 11, 2022
 LAC DPH Information
Understanding CA Child Care and School Immunization Requirements and Medical Exemptions PDF | Web/Mobile
July 8, 2022
 LAC DPH Health Update
Monkeypox-Commercial Lab Testing, Reporting, & Vaccine Availability PDF | Web/Mobile
July 5, 2022
 LAC DPH Health Update
Vaccinating Children 6 Months of Age and Older PDF | Web/Mobile
June 24, 2022
 CDPH Health Advisory
Managing Monkeypox Virus Infection in California PDF | Web/Mobile
June 14, 2022
 CDC Health Update
Updated Case-finding Guidance: Monkeypox Outbreak-United States, 2022 PDF | Web/Mobile
June 7, 2022
 LAC DPH Health Update
Monkeypox Updates and Provider Webinar this Thursday, June 9, 2022 PDF | Web/Mobile
June 1, 2022
 LAC DPH Health Update
Isolation and Quarantine for General Public PDF | Web/Mobile
May 27, 2022
 LAC DPH Health Alert
Contaminated Ecstasy and Accidental Drug Overdoses PDF | Web/Mobile
May 27, 2022
 CDPH Health Advisory
Monkeypox Virus Infection in the United States and Other Non-endemic Countries PDF | Web/Mobile
May 26, 2022
 LAC DPH Health Advisory
Florida Meningococcal Outbreak in Gay, Bisexual, and Other MSM and Vaccine Recommendations for LAC PDF | Web/Mobile
May 24, 2022
 LAC DPH COVID-19 Vaccine Update
Vaccine Recommendations-Boosters and Staying Up to Date with Doses PDF | Web/Mobile
May 24, 2022
 CDC Health Advisory
COVID-19 Rebound After Paxlovid Treatment PDF | Web/Mobile
May 20, 2022
 CDC Health Advisory
Monkeypox Virus Infection in the United States and Other Non-endemic Countries PDF 
May 17, 2022
 CDPH Health Advisory
Seasonal Influenza Activity is Increasing in California PDF | Web/Mobile
May 16, 2022
 CDPH Health Advisory
CDPH Advises Parents and Caregivers Against Making or Feeding Homemade Infant Formula to Infants PDF
May 12, 2022
 CDC Health Update
Updated Recommendations for Adenovirus Testing and Reporting of Children with Acute Hepatitis of Unknown Etiology
May 5, 2022
 CDPH Health Update
Update on Test-to-Treat Programs in California PDF | Web/Mobile
April 29, 2022
 CDC Health Advisory
Highly Pathogenic Avian Influenza A(H5N1) Virus: Recommendations for Human Health Investigations and Response  PDF| Web/Mobile
April 26, 2022
CDC Health Advisory
Updated Information on Availability and Use of Treatments for Outpatients with Mild to Moderate COVID-19 Who are at Increased Risk for Severe Outcomes of COVID-19
April 21, 2022
CDC Health Advisory
Recommendations for Adenovirus Testing and Reporting of Children with Acute Hepatitis of Unknown Etiology
March 31, 2022
 CDPH Health Update
Use of Outpatient COVID-19 Therapeutics in California
March 18, 2022
 CDPH Health Update
Federal Test-to-Treat Program in California
March 2, 2022
 LAC DPH Health Advisory
Temporary National Shortage of Rifampin Oral Capsules
February 25, 2022
 LAC DPH Health Update
Revisions to Evusheld Dosing
February 17, 2022
 CDPH Health Update
Distribution and Patient Prioritization for Tixagevimab/Cilgavimab (Evusheld)
February 11, 2022
 CDPH State Health Officer Order
Revision of Mandatory Reporting of COVID-19 Results
February 09, 2022
 LAC DPH Health Advisory
Availability of Therapeutics for Treatment and Pre-exposure Prophylaxis of COVID-19
February 3, 2022
 CDPH Health Advisory
Omicron Variant Update: Therapeutics Changes for Outpatient Treatment of Mild to Moderate COVID-19
January 28, 2022
 LAC DPH Health Advisory
Addressing Low COVID-19 Vaccination Rates in Children 5-11 Years of Age
January 8, 2022
 CDPH AFL
Guidance on Quarantine and Isolation for Health Care Personnel (HCP) Exposed to SARS-CoV-2 and Return to Work for HCP with COVID-19
January 7, 2022
LAC DPH Health Alert
Surge in Emergency Response System and Emergency Departments
2021 HAN Communications
December 31, 2021
 CDC Health Advisory
Using Therapeutics to Prevent and Treat COVID-19
December 30, 2021
 LAC DPH Health Advisory
Availability of Molnupiravir and Paxlovid for Treatment of Mild to Moderate COVID-19
December 27, 2021
 CDC Health Advisory 
Rapid Increase of Omicron Variant Infections in the United States: Management of Healthcare Personnel with SARS-CoV-2 Infection or Exposure
NOTE: Healthcare Facilities in California must follow the CDPH All Facilities Letter (AFL) 21-08.6: Guidance on Quarantine for Health Care Personnel (HCP) Exposed to SARS-CoV-2 and Return to Work for HCP with COVID-19 released on 12-30-21.
December 27, 2021
 CDPH Health Alert
Authorization of Molnupiravir for Treatment of Mild to Moderate COVID-19, Distribution, Patient Prioritization, and Ethical Considerations
December 23, 2021
 CDPH Health Alert
Authorization of Paxlovid for Treatment of Mild to Moderate COVID-19, Distribution, Patient Prioritization, and Ethical Considerations
December 20, 2021
 LAC DPH/CDC/CDPH Health Advisory
Mitigating COVID-19 Surge with COVID-19 Vaccination and Boosters; mRNA vaccines recommended over J&J
December 8, 2021
 CDPH Disease Notification
Act Now Ahead of Influenza Season: Recommendations for Healthcare Providers
December 3, 2021
 CDPH Updated Health Alert
SARS-CoV-Virus Variant of Concern B.1.1.529 (Omicron)
December 2, 2021
 CDC Health Advisory
New SARS-CoV-2 Variant of Concern Identified: Omicron (B.1.1.529) Variant
December 2, 2021
 LAC DPH Health Alert
Outbreaks of Flea-Borne Typhus
November 30, 2021
 CDPH Health Alert
SARS-CoV-2 Virus Variant of Concern B.1.1.529 (Omicron)
November 24, 2021
 CDC Health Advisory
Increasing Seasonal Influenza A (H3N2) Activity, Especially Among Young Adults and in College and University Settings, During SARS-CoV-2 Circulation
November 5, 2021
 CDC Health Update
Update: Expansion of Recall of LeadCare Blood Lead Tests Due to Risk of Falsely Low Results
November 3, 2021
 CDC Health Update
Source Identified and Case Definition Established: Multistate Investigation of Non-travel Associated Burkholderia pseudomallei Infections (Melioidosis) in Four Patients: Georgia, Kansas, Minnesota, and Texas – 2021
November 2, 2021
 CDPH Disease Notification
Anti-SARS-CoV-2 Monoclonal Antibodies
October 27, 2021
 LAC DPH Health Update
Booster Doses—Correction and Resources
October 23, 2021
 LAC DPH Health Update
Booster Doses
October 22, 2021
 CDC Health Update
Source Implicated in Fatal Case in Georgia: Multistate Outbreak of Non-travel Associated Burkholderia pseudomallei Infections (Melioidosis) in Four Patients: Georgia, Kansas, Minnesota, and Texas–2021
October 14, 2021
 LAC DPH Health Advisory
Foul Odors Reported in the Vicinity of the Dominguez Channel in Carson and Surrounding Communities
October 14, 2021
 CDC Health Update
Expansion of Recall of LeadCare Blood Lead Tests Due to Risk of Falsely Low Results
September 29, 2021
 CDC Health Advisory
COVID-19 Vaccination for Pregnant People to Prevent Serious Illness, Deaths, and Adverse Pregnancy Outcomes from COVID-19
September 27, 2021
 CDPH Health Advisory
Influenza and Respiratory Syncytial Virus Activity and Guidance for Clinicians
September 20, 2021
 CDC Health Advisory
Guidance for Clinicians Caring for Individuals Recently Evacuated from Afghanistan
September 14, 2021
 CDC Health Advisory
Increases in Availability of Cannabis Products Containing Delta-8 THC and Reported Cases of Adverse Events
September 10, 2021
 LAC DPH COVID-19 Update
COVID-19 Vaccine Additional Dose vs Booster and Vaccine Coadministration
August 26, 2021
 CDC Health Advisory
Rapid Increase in Ivermectin Prescriptions and Reports of Severe Illness Associated with Use of Products Containing Ivermectin to Prevent or Treat COVID-19
August 14, 2021
 LAC DPH COVID-19 Vaccine Update
Additional mRNA Dose for Immunocompromised Persons & LA County Healthcare Worker Vaccine Mandate
August 10, 2021
 LAC DPH Health Advisory:
Increased Interseasonal Activity of Respiratory Syncytial Virus in Los Angeles County
August 09, 2021
 CDC Health Update:
New Case Identified: Multistate Investigation of Non-travel Associated Burkholderia pseudomallei Infections (Melioidosis) in Four Patients: Georgia, Kansas, Minnesota, and Texas — 2021
August 06, 2021
 CDPH State Public Health Officer Order:
Health Care Worker Vaccine Requirement (8-5-21)
July 28, 2021
 CDPH State Public Health Officer Order:
Unvaccinated Workers in High Risk Settings (7-26-21)
July 27, 2021
 CDC Health Advisory
Vaccination to Prevent COVID-19 Outbreaks with Current and Emergent Variants — United States, 2021
July 17, 2021
 CDC Health Advisory
Potential Exposure to Person with Confirmed Human Monkeypox Infection — United States, 2021
July 6, 2021
 CDC Health Advisory
Recall of LeadCare® Blood Lead Tests Due to Risk of Falsely Low Results
June 30, 2021
 CDC Health Advisory
Multistate Investigation of Non-travel Associated Burkholderia pseudomallei Infections (Melioidosis) in Three Patients: Kansas, Texas, and Minnesota—2021
June 10, 2021
 CDC Health Advisory
Increased Interseasonal Respiratory Syncytial Virus (RSV) Activity in Parts of the Southern United States
June 1, 2021
 LAC DPH COVID-19 Updates
SARS-CoV-2 Testing Guidelines and More
May 28, 2021
 CDPH Health Advisory:
Myocarditis and Pericarditis after Receipt of mRNA COVID-19 Vaccines Among Adolescents and Young Adults
May 28, 2021
CDPH Health Advisory:
Bamlanivimab plus Etesevimab No Longer Recommended for Use in California for COVID-19
May 26, 2021
 CDPH Disease Notification:
Acute Non-Viral Hepatitis of Unknown Etiology Potentially Associated with an Alkaline Water Product
May 13, 2021
 LAC DPH COVID-19 Vaccine Update:
Vaccination for Children and Homebound Persons
April 23, 2021
 CDC/FDA Update:
Use of J&J to Resume in LA County
April 13, 2021
 CDC Health Alert:
CDC/FDA Recommend that Providers Pause Administration of Johnson & Johnson COVID-19 Vaccine
March 31, 2021
 CDC Health Advisory:
Acute Non-Viral Hepatitis of Unknown Etiology Potentially Associated with an Alkaline Water Product
March 26, 2021
 LAC DPH Health Update:
School and Childcare Immunizations and Filing Medical Exemptions
March 19, 2021
 CDPH Health Alert:
Concerns re: the Use of Bamlanivimab Monotherapy in the Setting of SARS-CoV-2 Variants
March 15, 2021
 LAC DPH COVID-19 Update:
Vaccination for People at Higher Risk and Revised Recommendations for the Fully Vaccinated
March 5, 2021
 LAC DPH Health Alert:
Ebola Virus Disease Outbreaks in the Democratic Republic of Congo and Guinea
March 3, 2021
 LAC DPH Health Alert:
Wound Botulism Cases Associated with Heroin Injection
February 26, 2021
 CDPH Health Alert:
SARS-CoV-2 virus variants of concern identified in CA
February 22, 2021
 CDPH Information:
Increasing Disseminated Gonococcal Infections in California – Resources including a webinar on 2/23/21
February 18, 2021
 LAC DPH COVID-19 Update:
Vaccinated Persons and Quarantine
February 16, 2021
 CDPH Health Advisory:
Ongoing Risk of Highly Drug-Resistant Infections in Patients Following Hospitalization or Invasive Procedures in Mexico
February 12, 2021
 CDC Health Advisory:
Extensively Drug-Resistant Salmonella Typhi Infections Among U.S. Residents Without International Travel
February 3, 2021
 LAC DPH Advisory:
Limitations of SARS-CoV-2 Antigen Tests, Low Influenza Rates, Updates
January 21, 2021
 CDPH Vaccine Update:
Providers that Paused Use of Moderna Lot 041L20A COVID-19 Vaccine Can Immediately Resume Administering Doses
January 19, 2021
 LAC DPH COVID-19 Information:
Individuals Age 65 and Older and Vaccine MegaPOD Reminder
January 17, 2021
 CDPH Recommendation:
That Providers Pause Administration of Moderna's COVID-19 Vaccine Lot 041L20A
January 15, 2021
 LAC DPH COVID-19 Information:
Large Scale Vaccination Events for Phase 1A Healthcare Workers- Vaccination and Volunteer Opportunities
2020 HAN Communications
December 24, 2020
 LAC DPH Health Advisory:
SARS-CoV-2 Virus Variant
December 23, 2020
 LAC DPH Health Alert:
Extreme Surge on Hospitals and 9-1-1 System
December 21, 2020
 LAC DPH COVID-19 Update:
Revised Quarantine Period and Resources
October 7, 2020
 CDC Health Advisory:
Increase in Fatal Drug Overdoses Across the United States Driven by Synthetic Opioids Before and During the COVID-19 Pandemic
December 4, 2020
 LAC DPH Health Advisory:
COVID-19 Vaccine Update
November 24, 2020
 CDPH Health Update:
Maximizing Routine Immunization During the COVID-19 Pandemic
October 29, 2020
 LAC DPH Health Alert:
Wound Botulism Cases Associated with Heroin
October 28, 2020
 LAC DPH COVID-19 Update:
Revised Isolation & Quarantine Orders, Recently Recovered Patients, MIS-C, and Resources
October 7, 2020
 CDC Health Advisory:
Recent HIV Clusters and Outbreaks Across the United States Among People Who Inject Drugs and Considerations During the COVID-19 Pandemic
August 20, 2020
 CDPH Health Advisory:
Resurgence of Candida auris in Healthcare Facilities in the Setting of COVID-19
July 28, 2020
 LAC DPH Health Update: 
Discontinuing Isolation, Recently Recovered Patients, Universal Eye Protection
July 18, 2020
 LAC DPH Health Update:
Multisystem Inflammatory Syndrome in Children (MIS-C)
July 17, 2020
 LAC DPH Health Advisory:
Resurgence of Candida auris in Los Angeles County
July 13, 2020
 LAC DPH Health Advisory:
Heath Officer Order Requiring Diagnostic Testing Access
July 13, 2020
 LAC DPH Health Advisory:
Rifapentine Shortage and Detection of Nitrosamine Impurity
July 6, 2020
 CDC Health Advisory:
Serious Adverse Health Events Associated with Methanol-based Hand Sanitizers
July 4, 2020
 LAC DPH Health Advisory:
Increasing COVID-19 Cases; Isolation and Quarantine; Testing Access
June 23, 2020
 CDC Health Advisory:
Detection of Ciprofloxacin-resistant, ß-lactamase-producing Neisseria meningitidis Serogroup Y Isolates, United States, 2019–2020
June 2, 2020
 LAC DPH Health Update:
COVID-19 Updates
June 1, 2020
 LAC DPH Health Advisory:
Tuberculosis During the COVID-19 Pandemic
May 14, 2020
 CDC Health Advisory:
Multisystem Inflammatory Syndrome in Children (MIS-C) Associated with Coronavirus Disease 2019 (COVID-19)
May 12, 2020
 LAC DPH Health Alert:
Pediatric Multi-System Inflammatory Syndrome Potentially Associated with COVID-19
 Note: the case definition in this LAHAN is superseded by the 5/14/20 CDC HAN above.
May 11, 2020
 CDPH Health Alert:
E-cigarette, or Vaping, Product Use-Associated Lung Injury (EVALI) Cases During California’s COVID-19 Response
May 8, 2020
 LAC DPH Health Advisory:
Maintaining Immunizations During COVID-19 Pandemic and Resuming Deferred Preventive Care
May 1, 2020
 LAC DPH Health Advisory:
Revised Isolation Period and Clinical Symptoms
April 22, 2020
 LAC DPH Health Advisory:
Expanding Testing and Universal Source Control
April 16, 2020
 LAC DPH Health Advisory:
SARS-CoV-2 Serology
April 13, 2020
 CDPH All Facilities Letter:
Coronavirus Disease 2019 Optimizing the Use of Personal Protective Equipment (PPE)
April 7, 2020
 LAC DPH Health Advisory:
Notification of Close Contacts; Importance of COVID-19 Death and Case Reporting
April 2, 2020
 LAC DPH Health Update:
Revised COVID-19 Exposure Period
March 28, 2020
 LAC DPH Health Advisory:
Ambulatory Patients with COVID-19; Healthcare Personnel Monitoring
March 25, 2020
 LAC DPH Health Alert:
Preserving Critical Supplies and Resources; New COVID-19 Mortality Reporting
March 19, 2020
 LAC DPH Health Advisory:
COVID-19 Testing, Isolation and Quarantine, and Health Care Worker Monitoring Recommendations
March 13, 2020
 LAC DPH Health Information:
Webinar with CME. Clinical Update II on Coronavirus Disease 2019 3/13/20, 12pm Website  Flyer
March 11, 2020
 LAC DPH Health Advisory:
Coronavirus Disease-19 Testing Guidance and Revised Personal Protective Equipment
March 6, 2020
 LAC DPH Health Advisory:
COVID-19 Clinical Laboratory Testing, Reporting, Personal Protective Equipment (PPE), Health Care Worker Exposure Monitoring
March 4, 2020
 LAC DPH Health Advisory:
COVID-19 Guidance-Optimizing N95 Supplies and Managing Mild Illness
Februrary 29, 2020
 LAC DPH Health Advisory:
Revised Evaluation Criteria for Coronavirus Disease 2019 (COVID-19)
February 14, 2020
 LAC DPH Health Information:
Webinar with CME. Clinical Update on Coronavirus Disease 2019 2/21/20, 12pm Website  Flyer
February 7, 2020
 LAC DPH Health Alert:
Measles Outbreak in LA County
February 1, 2020
 CDC Health Update:
Update and Interim Guidance on Outbreak of 2019 Novel Coronavirus (2019-nCoV)
January 28, 2020
 LAC DPH Health Information:  View summary of LAC DPH briefing.
LAC DPH and CDC Telebriefings for Clinicians− 2019 Novel Coronavirus (2019-nCoV) on 1/30/20 and 1/31/20
January 26, 2020
 LAC DPH Health Advisory:
First Case of 2019 Novel Coronavirus (2019-nCoV) in Los Angeles County. Clinical Guidance.
January 17, 2020
 CDC Health Update:
Update and Interim Guidance on Outbreak of 2019 Novel Coronavirus (2019-nCoV) in Wuhan, China
January 10, 2020
 LAC DPH Health Advisory:
Rise in Disseminated Gonococcal Infections
January 10, 2020
 CDC Health Advisory:
Elevated Influenza Activity-Influenza B/Victoria and A(H1N1)pdm09 Viruses are the Predominant Viruses
January 8, 2020
 CDC Health Advisory:
Outbreak of Pneumonia of Unknown Etiology (PUE) in Wuhan, China
2019 HAN Communications
December 16, 2019
 CDC Health Advisory:
Guidance for Using Rapid Diagnostic Tests for Ebola in the United States
December 12, 2019
 LAC DPH Health Information:
Changes to Reportable Diseases and Conditions in LA County
November 21, 2019
 LAC DPH Health Alert:
Wound Botulism Cases Associated with Heroin
November 19, 2019
 CDPH Health Advisory:
Ongoing Risk of Highly Drug-Resistant Infections in Patients Following Hospitalization or Invasive Procedures in Tijuana, Mexico
November 7, 2019
 LAC DPH Health Advisory:
Mumps Outbreak in Men’s Central Jail
October 2, 2019
 CDPH Health Update:
Vaping-Associated Pulmonary Injury
August 30, 2019
 CDC Health Advisory:
Severe Pulmonary Disease Associated with Using E-Cigarette Products
August 28, 2019
 CDPH Health Update:
Vaping-Associated Pulmonary Injury
August 12, 2019
 CDPH Health Alert:
Severe Acute Pulmonary Disease Associated with Cannabis or Cannabidiol Oil Vaping
July 30, 2019
 LAC DPH Health Advisory:
Communicable Disease Recommendations Associated with the Hajj
July 23, 2019
 LAC DPH Health Alert:
Ebola Virus Disease Outbreak in the Democratic Republic of Congo
July 5, 2019
 CDPH Health Update:
Update and Recommendations - Shiga toxin-producing Escherichia coli (STEC) Infections Exposure at San Diego County Fair
July 2, 2019
 CDPH Health Notification:
Shiga toxin-producing Escherichia coli (STEC) Infections Exposure at San Diego County Fair
June 12, 2019
 CDC Health Advisory:
Nationwide Shortage of Tuberculin Skin Test Antigens - CDC Recommendations for Patient Care and Public Health Practice
May 24, 2019
 LAC DPH Health Update:
Measles Situation Update and Revised Clinical Guidance
May 7, 2019
 LAC DPH Health Advisory:
Candida auris Detected in Southern California Healthcare Facilities
April 26, 2019
 LAC DPH Health Update:
Measles Prevention in LA County
April 22, 2019
 LAC DPH Health Alert:
Measles Outbreak in LA County
April 3, 2019
 CDPH Health Advisory:
Measles Clinical Guidance: Identification and Testing of Suspect Measles Cases
February 21, 2019
 LAC DPH Health Advisory:
Hepatitis C Associated with Outpatient Clinic in Los Angeles
February 19, 2019
 LAC DPH Health Alert:
Increase in Clusters of Pertussis in 11 to 18-Year-Olds in LA County
February 15, 2019
 CDPH Health Advisory:
Ongoing Ebola Outbreak in the Democratic Republic of Congo – Screening for International Travel in Persons with Possible Infectious Disease Remains a Best Practice
January 23, 2019
 CDC Health Advisory:
Third Case of Rifampin/Penicillin-Resistant Strain of RB51 Brucella from Consuming Raw Milk
January 22, 2019
 LAC DPH Health Advisory:
Infections Associated with Unapproved Stem Cell Injections
January 14, 2019
 CDC Travel Alert:
Carbapenem-Resistant Pseudomonas Aeruginosa Infections Following Invasive Medical Procedures in Tijuana, Mexico
2018 HAN Communications
December 10, 2018
 CDC Health Update:
Outbreak of Life-threatening Coagulopathy Associated with Synthetic Cannabinoids Use
November 30, 2018
 LAC DPH Health Advisory:
New Cases of Hepatitis A Among Persons Experiencing Homelessness and/or Using Illicit Drugs
November 26, 2018
 LAC DPH Health Alert:
Local Cases of Shiga Toxin-Producing E. Coli Linked to Romaine Lettuce
November 21, 2018
 LAC DPH/DMH Health Advisory:
Identifying and Managing the Mental Health Impacts of the Woolsey Fire on Residents and First Responders
November 20, 2018
 LAC DPH Health Advisory:
Measles Outbreaks in Israel, NYC and Surrounding Areas
October 18, 2018
 CDPH Notification:
National Increase in Reports of Suspected Acute Flaccid Myelitis Cases
October 12, 2018
 LAC DPH Health Update:
Outbreaks of Flea-BorneTyphus in Los Angeles County
October 4, 2018
 LAC DPH Health Alert:
Outbreak of Flea-Borne Typhus in Downtown Los Angeles
October 1, 2018
 LAC DPH Health Advisory:
Human Case of St. Louis Encephalitis in Los Angeles County
September 7, 2018
 CDC Health Advisory:
Advice to Clinicians about Leptospirosis in U.S. Travelers Returning from Northern Israel
August 20, 2018
 LAC DPH Health Alert:
Measles Exposure in Los Angeles County
August 10, 2018
 CDC Health Advisory:
Influenza A (H1N2) Variant Virus in CA Residents with Exposure to Pig
August 9, 2018
 LAC DPH Health Advisory:
Middle East Respiratory Syndrome Coronavirus
July 31, 2018
 CDPH Health Update:
Ebola Outbreak in the Democratic Republic of Congo is Declared Over
July 11, 2018
 CDC Health Update:
Rising Numbers of Deaths Involving Fentanyl and Fentanyl Analogs, Including Carfentanil, and Increased Usage and Mixing with Non-opioids
July 2, 2018
 LAC DPH Health Alert:
Wound Botulism Cases Associated with Heroin
June 11, 2018
 CDC Health Advisory:
Outbreak of Hepatitis A Virus (HAV) Infections among Persons Who Use Drugs and Persons Experiencing Homelessness
June 8, 2018
 CDC Health Update:
Managing and Reporting Shigella Infections with Possible Reduced Susceptibility to Ciprofloxacin
May 25, 2018
 CDC Health Advisory:
Outbreak of Life-Threatening Coagulopathy Associated with Synthetic Cannabinoids Use
May 24, 2018
 LAC DPH Health Advisory:
Fentanyl Overdoses Related to Illicit Drug Use
May 23, 2018
 CDPH Health Alert:
Ebola Outbreak in the Democratic Republic of Congo
April 25, 2018
 CDPH Health Advisory:
Multistate Outbreak of Serratia Marcescens Bloodstream Infections
April 11, 2018
 CAHAN San Diego Health Advisory:
Wound Botulism Cases Associated with Black Tar Heroin
March 15, 2018
 LAC DPH Health Update:
Need for Continued Vigilance for Hepatitis A Infection and Vaccination for High Risk Groups
March 9, 2018
 LAC DPH Health Advisory:
Potential Mumps Exposure from National Cheerleading Competition in Texas
January 4, 2018
 LAC DPH Health Advisory:
Updated California Zika Testing Guidelines and a Local Case of Sexually Transmitted Zika
2017 HAN Communications
Dec 27, 2017
 CDC Health Advisory:
Seasonal Influenza A(H3N2) Activity and Treatment
Dec 13, 2017
 LAC DPH Health Advisory:
Meningococcal Outbreak at Oregon State University
Nov 14, 2017
 CDPH Health Notification:
Legionellosis Associated with Travel to Anaheim, California
Nov 11, 2017
 Webinar:
Hepatitis A Outbreak in LA County
Nov 2, 2017
 LAC DPH Health Alert:
Increase in Hepatitis A among Men Who Have Sex with Men (MSM) in Los Angeles County
Oct 24, 2017
 CDC Health Advisory:
Advice for Health Care Providers Treating Patients in or Recently Returned from Hurricane-Affected Areas, Including Puerto Rico and the US Virgin Islands
Sept 19, 2017
 LAC DPH Health Alert:
Outbreak of Hepatitis A in Los Angeles County among the Homeless and People who use Illicit Drugs
Aug 9, 2017
 CDC Health Advisory:
Increase in Reported Cases of Cyclospora cayetanensis Infection, United States, Summer 2017
Aug 3, 2017
 CDPH Health Advisory:
CDPH Updated Guidance for Providers Caring for Pregnant Women with Possible Zika Virus Exposure
July 31, 2017
 LAC DPH Health Advisory:
Detection and Prevention of Hepatitis A among the Homeless and People who use Illicit Drugs in Los Angeles County
July 19, 2017
 LAC DPH Health Advisory:
Meningococcal Outbreak and Importance of Completing Vaccine Series for HIV-Infected Individuals
July 7, 2017
 CDC Health Advisory:
Patients Receiving Eculizumab (Soliris®) at High Risk for Invasive Meningococcal Disease Despite Vaccination
June 1, 2017
 LAC DPH Health Alert:
Mumps Outbreak in Adults in Los Angeles County
May 17, 2017
 CDC Health Advisory:
Potential for Falsely Low Blood Lead Test Results from LeadCare® Analyzers
May 4, 2017
 LAC DPH Health Information:
Rx for Prevention is Back - Subscribe Here
April 19, 2017
 CDC and LAC DPH Health Advisory:
Recommendations for Diagnosing and Managing Shigella Strains with Possible Reduced Susceptibility to Ciprofloxacin
March 9, 2017
 LAC DPH Health Alert:
Mumps Clusters in Adults in Los Angeles County
Jan 31, 2017
 LAC DPH Health Advisory:
First mcr-1 Producing Bacteria Identified in a Los Angeles County Resident
Jan 19, 2017
 LAC DPH Health Information:
New Health Officer Order – Health Facilities to Report Carbapenem-Resistant Enterobacteriaceae and Antimicrobial Resistance
2016 HAN Communications
Dec 23, 2016
 LAC DPH Health Alert:
Measles Outbreak in Los Angeles County
Dec 14, 2016
 CDC Health Advisory:
Guidance for Travel and Testing of Pregnant Women and Women of Reproductive Age for Zika- Brownsville, Texas
Nov 29, 2016
 LAC DPH Health Information:
STD Rates on the Rise in Los Angeles County
Oct 20, 2016
 CDC Health Update #2:
Guidance for Travel and Testing of Pregnant Women and Women of Reproductive Age for Zika- Miami-Dade County, Florida
Oct 17, 2016
 CDC Health Advisory:
Open-Chest Cardiac Surgery Patients and Risk of Non-Tuberculous Mycobacterium
Sept 20, 2016
 CDC Health Update:
Guidance for Travel and Testing of Pregnant Women and Women of Reproductive Age for Zika- Miami-Dade County, Florida
Aug 29, 2016
 LAC DPH Health Advisory:
Increased Risk of Fentanyl-Related Overdoses
Aug 24, 2016
 LAC DPH Health Alert:
Cluster of Shigella flexneri Infections among Men in Los Angeles and Other Southern California Counties
Aug 23, 2016
 LAC DPH Health Alert: (Revised August 29)
Outbreak of Synthetic Cannabinoid (“Spice”) Overdoses
Aug 3, 2016
 CDC Health Advisory:
CDC Guidance related to local mosquito-borne Zika virus transmission in Florida
July 26, 2016
 LAC DPH Health Alert:
Meningococcal Vaccine Now Recommended For All Men Who Have Sex With Men (MSM)
Jun 24, 2016
 LAC DPH Health Alert:
Outbreak of Meningococcal Disease among adult Males in Southern California
June 14, 2016
 CDC Health Advisory:
Alert to U.S. Healthcare Facilities: First mcr-1 Gene in E. coli Bacteria found in a Human in the United States
June 2, 2016
 LAC DPH Health Advisory:
Bicillin L-A® (Benzathine Penicillin G) Shortage
May 27, 2016
 CDC Health Update:
Testing of Urine Specimens for Zika Virus Infection
April 14, 2016
 CDPH Drug Overdose Health Alert:
Fentanyl-Contaminated Street Norco
April 8, 2016
 CDPH Health Information:
CDPH Provider Call - Zika Virus Disease and California’s Response, April 20, 2016
CDC Guidance on Preventing Transmission of Zika Virus in Labor and Delivery Settings
March 25, 2016
 LAC DPH Health Update:
Zika Virus Infection Update #4 - Updated CDC Interim Guidance for Prevention of Sexual Transmission and for Health Care Providers Caring for Women of Reproductive Age
March 8, 2016
 LAC DPH Health Update:
Aliso Canyon Natural Gas Leak Resolution and Follow-up
March 3, 2016
 LAC DPH Health Update:
Zika Virus Infection Update #3 – Revised Instructions for Zika Testing and Reporting in Los Angeles County
March 1, 2016
 Webinar:
Zika Virus, Pregnancy and Sex: Up-to-Date Information for Los Angeles Health Care Providers
Feb 23, 2016
 CDC Health Advisory:
Update: Interim Guidelines for Prevention of Sexual Transmission of Zika Virus — United States, 2016
Feb 5, 2016
 LAC DPH Health Update:
Zika Virus Infection Update #2 – Revised Management Recommendations for Pregnant Women and Guidance to Prevent Sexual Transmission
Feb 1, 2016
 CDC Health Advisory:
Flu Season Begins-Severe Influenza Illness Reported
Jan 28, 2016
 LAC DPH Health Update:
Zika Virus Infection – Testing and Reporting in Los Angeles County
Jan 22, 2016
 LAC DPH Health Advisory:
Aliso Canyon Gas Leak-Fact Sheet for Medical Providers
Jan 15, 2016
 CDC Health Advisory:
Zika Virus Infections
Jan 5, 2016
 LACDPH Health Update:
Guinea Declared Ebola-free
2015 HAN Communications
Oct 26, 2015
 CDC Health Advisory:
Increases in Fentanyl Drug Confiscations and Fentanyl-related Overdose Fatalities
Oct 2, 2015
 CDC Health Update:
REVISION to ADVISORY  Immediate Need for Healthcare Facilities to Review Procedures for Cleaning, Disinfecting, and Sterilizing Reusable Medical Devices
Sept 23, 2015
 LACDPH Health Information:
Use of Nucleic Acid Amplification Tests (NAATs) to Detect Active Tuberculosis
Sept 11, 2015
 CDC Health Advisory:
Immediate Need for Healthcare Facilities to Review Procedures for Cleaning, Disinfecting, and Sterilizing Reusable Medical Devices
July 23, 2015
 Webinar:
Pertussis in California
June 24, 2015
 LACDPH Health Update:
Ebola Risk and Management of Travelers Returning from Liberia
June 19, 2015
 LACDPH Health Update:
Meningitis Vaccine for MSM Travel to Chicago Pride Events
June 5, 2015
 LACDPH Health Advisory:
South Korean MERS-Preparing for Internationally Transmitted Diseases
June 3, 2015
 CDC Health Advisory:
Bird Infections with Highly-Pathogenic Avian Influenza A Viruses: Recommendations for Human Health Investigations and Response
March 5, 2015
 LACDPH Health Advisory:
Nearby Clusters of Ocular Syphilis Require Provider Vigilance
Feb 27, 2015
 LACDPH Health Update:
Vaccinate High Risk Men Who Have Sex with Men (MSM) to Prevent Invasive Meningococcal Disease
Feb 10, 2015
 Webinar:
Measles Update: A Primer for Health Care Providers
Jan 27, 2015
 LACDPH Health Advisory:
Chikungunya Fever among Returning Travelers from El Salvador
Jan 23, 2015
 LACDPH Health Update:
Measles Outbreak in Los Angeles County Associated with Disneyland Parks
Jan 14, 2015
 LACDPH Health Update:
Access to Antiviral Medication for Treatment of Influenza
Jan 8, 2015
 CDPH Health Advisory:
Seven Confirmed Measles Cases in California in 2015
2014 HAN Communications

Date
Subject
Dec 5, 2014
 CDC Health Advisory:
Potential for Circulation of Drifted Influenza A (H3N2) Viruses
Nov 26, 2014
 CDC Health Advisory:
Fatal Gastrointestinal Mucormycosis in an Infant Following Ingestion of Contaminated Dietary Supplement
Nov 19, 2014
 LACDPH Health Update:
Ebola Virus Disease (Ebola) Update #2
Oct 21, 2014
 LACDPH Health Update:
Ebola Virus Disease (Ebola) Update
Oct 17, 2014
 LACDPH Health Update:
Ebola Preparedness and Response for Outpatient Health Care Providers
Oct 3, 2014
 CDC Health Advisory:
Evaluating Patients for Possible Ebola Virus Disease: Recommendations for Healthcare Personnel and Health Officials
Sept 29, 2014
 CDC Health Advisory:
Acute Neurologic Illness of Unknown Etiology in Children
Sept 11, 2014
 LACDPH Health Advisory:
Enterovirus 68 (EV-D68)
Sept 10, 2014
 LACDPH Health Update:
Update on Ebola Virus Disease (EVD) in West Africa
Aug 14, 2014
 LACDPH Health Advisory:
Evaluation, reporting and management of suspect Ebola cases in Los Angeles County
Aug 4, 2014
 CDPH Health Advisory:
Response to Persons with Possible Ebola Virus Infection: Information for Health Care Providers in California
July 28, 2014
 CDC Health Advisory:
Ebola Virus Disease Confirmed in a Traveler to Nigeria and Two U.S. Healthcare Workers in Liberia
July 15, 2014
 LACDPH Health Advisory:
Large Numbers of Pertussis Cases in Los Angeles County
June 3, 2014
 CDC Health Advisory:
Guidance Regarding New WHO Polio Vaccination Requirements for Travel
May 21, 2014
 CDPH Health Advisory:
Mercury Poisoning Linked to Skin Creams From Mexico
May 3, 2014
 CDC Health Advisory:
Confirmed Middle East Respiratory Syndrome Coronavirus (MERS-CoV) Case in Indiana, 2014
April 2, 2014
 LACDPH Health Alert:
Invasive Meningococcal Disease Update: New Vaccine Recommendations for Men who Have Sex with Men (MSM)
Jan 30, 2014
 LACDPH Health Alert:
Prompt Reporting of Suspect Measles Cases is Critical to Prevent New Infections and Serious Complications
Jan 16, 2014
 LACDPH Health Update:
Consider Antivirals For High Risk Influenza Patients
2013 HAN Communications
Date
Subject
Dec 13, 2013
 CDC Health Advisory:
Chikungunya Virus Infections
Dec 5, 2013
 LACDPH Health Advisory:
Pertussis Increasing in LA County
Nov 27, 2013
 CDC Health Advisory:
Notice to Healthcare Providers: Recognizing and Reporting Serogroup B Meningococcal Disease Associated with Outbreaks at Princeton University and the University of California at Santa Barbara
Oct 8, 2013
 CDC Health Advisory:
Acute Hepatitis and Liver Failure Following the Use of a Dietary Supplement Intended for Weight Loss or Muscle Building
Aug 14, 2013
 CDC Health Advisory:
Recall of All Products for Sterile Use from Specialty Compounding LLC
Aug 13, 2013
 CDC Health Update:
Guidance for the Evaluation of Severe Respiratory Illness Associated with MERS-CoV
July 31, 2013
 LACDPH Health Advisory:
Measles Exposures in Los Angeles County
July 12, 2013
 LACDPH Health Alert:
Surge in West Nile Virus Activity in the South Bay
June 20, 2013
 CDC Health Advisory:
Acetyl Fentanyl and Overdose with Synthetic Opioids-Recommendations for lab testing and patient evaluation
June 12, 2013
 CDC Health Advisory:
Nationwide Shortage of Doxycycline: Resources for Providers and Recommendations for Patient Care
June 3, 2013
 LACDPH Health Alert:
Hepatitis A outbreak associated with Townsend Farms Organic Antioxidant Blend Frozen Berries from Costco
May 8, 2013
 LACDPH Health Update:
Avian Influenza (H7N9) Virus
April 17, 2013
 LACDPH Health Advisory:
Avian Influenza A (H7N9) Virus
March 12, 2013
 LACDPH Health Advisory:
Post-Exposure Prophylaxis for High-Risk Persons Exposed to Varicella
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