Los Angeles Health Alert Network

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Los Angeles Health Alert Network
Email: lahan@ph.lacounty.gov
Los Angeles Health Alert Network
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The Department of Public Health (DPH) emails priority communications to health care professionals through LAHAN. Topics include local or national disease outbreaks and emerging health risks. 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
Red Box
Alert: Conveys the highest level of importance; warrants immediate action or attention.
Orange Box
Advisory: Provides important information for a specific incident or situation; may not require immediate action.
Yellow Box
Update: Provides updated information regarding an incident or situation; unlikely to require immediate action.
Blue Box
Information: Provides general information that is not necessarily considered to be of an emergent nature.
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
2013-19 HAN Communications
To see previously issued health alerts:
Please click here
 
Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.
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