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.
2024 HAN Communications
November 22, 2024
Mycoplasma pneumoniae Infections Among Children and Adolescents During Fall and Winter Respiratory Illness Season
CDPH Health Advisory  
PDF | Web/Mobile

Month ##, 2024
First Case of Clade I Mpox Diagnosed in the United States
CDC Health Advisory  
PDF | Web/Mobile

October 16, 2024
Updated Syphilis Screening Recommendations
CDPH Health Update  
PDF | Web/Mobile

October 11, 2024
California Statewide Discontinuation of Ciprofloxacin for Invasive Meningococcal Disease Post-Exposure Prophylaxis
CDPH Health Advisory  
PDF | Web/Mobile

October 10, 2024
First Cases of Human Avian Influenza A (H5N1) in California & Preparation for the Respiratory Virus Season
CDPH Health Advisory  
PDF | Web/Mobile

October 3, 2024
First Marburg Virus Disease Outbreak in the Republic of Rwanda
CDC Health Advisory  
PDF | Web/Mobile

September 24, 2024
Mpox Clade I & II – Prevention in the US and Before Travel
CDC/LAC DPH Health Update  
PDF | Web/Mobile

September 18, 2024
Cluster of Locally Acquired Cases of Dengue in Los Angeles County
LAC DPH Health Update  
PDF | Web/Mobile

September 17, 2024
Human Infections with Baylisascaris procyonis (Raccoon Roundworm)
LAC DPH Health Alert  
PDF | Web/Mobile

September 09, 2024
Locally Acquired Case of Dengue in Los Angeles County
LAC DPH Health Alert  
PDF | Web/Mobile

September 4, 2024
Detection of Highly Pathogenic Avian Influenza (HPAI) A(H5N1) in California Dairy Cattle
CDPH Health Advisory  
PDF | Web/Mobile

August 16, 2024
Increased Oropouche Virus Activity and Associated Risk to Travelers
CDC Health Advisory  
PDF | Web/Mobile

August 13, 2024
Increase in Human Parvovirus B19 Activity in the United States
CDC Health Advisory  
PDF | Web/Mobile

August 09, 2024
Rise in Extensively Drug-Resistant Shigella Strains-January to May 2024
CDPH Health Advisory  
PDF | Web/Mobile

August 07, 2024
Mpox Caused by Human-to-Human Transmission of Monkeypox Virus in the Democratic Republic of the Congo with Spread to Neighboring Countries
CDC Health Update  
PDF | Web/Mobile

June 03, 2024
Webinar with CME. Dengue on 7/11/24, 12pm
LAC DPH Health Information  
Flyer | Web/Mobile

June 26, 2024
Increased Risk of Dengue Virus Infections in the United States
CDC Health Advisory  
PDF | Web/Mobile

June 25, 2024
Severe Acute Illnesses and Hospitalizations Linked to Diamond Shruumz ™ Chocolate Bars, Cones, and Gummies (Microdose Products)
CDPH Health Advisory  
PDF | Web/Mobile

June 20, 2024
Reports of Rare, Severe Dermatophyte Infections Associated with Sexual Contact in the United States
CDPH Health Advisory  
PDF | Web/Mobile

June 13, 2024
Disrupted Access to Prescription Stimulant Medications Could Increase Risk of Injury and Overdose
CDC Health Advisory  
PDF | Web/Mobile
 
June 12, 2024
Influenza A Testing Guidance: Enhanced Surveillance During the Summer Months
CDPH Health Update  
PDF | Web/Mobile
Note for laboratories: Please see LAC DPH Laboratory Alert Notification--Enhanced Influenza Surveillance (6-13-24).

June 12, 2024
Severe Illness Potentially Associated with Consuming Diamond Shruumz™ Brand Chocolate Bars, Cones, and Gummies
CDC Health Advisory  
PDF | Web/Mobile

May 21, 2024
Meningococcal Disease—Ciprofloxacin Resistance in Southern California and Cases Linked to Travel to the Kingdom of Saudi Arabia
LAC DPH Health Advisory  
PDF | Web/Mobile

May 10, 2024
Local Outbreak of Hepatitis A among Persons Experiencing Homelessness and/or who use Illicit Drugs
LAC DPH Alert  
PDF | Web/Mobile

April 23, 2024
Adverse Effects Linked to Counterfeit or Mishandled Botulinum Toxin Injections
CDC Health Advisory  
PDF | Web/Mobile

March 18, 2024
Fatality from Lead Poisoning Linked to Use of Hemorrhoid Ointment from Vietnam
CDPH Health Advisory  
PDF | Web/Mobile

April 05, 2024
Highly Pathogenic Avian Influenza A(H5N1) Virus: Identification of Human Infection and Recommendations for Investigations and Response
CDC Health Advisory  
PDF | Web/Mobile

March 28, 2024
Increase in Invasive Serogroup Y Meningococcal Disease in the United States
CDC Health Advisory  
PDF | Web/Mobile

March 18, 2024
Extension of Long-Acting Benzathine Penicillin G (Bicillin® L-A) Shortage
CDPH Health Advisory  
PDF | Web/Mobile

March 18, 2024
Increase in Global and Domestic Measles Cases and Outbreaks: Ensure Children in the United States and Those Traveling Internationally 6 Months and Older are Current on MMR Vaccination
CDC Health Advisory  
PDF | Web/Mobile

February 1, 2024
First LA County Measles Case
LAC DPH Health Alert  
PDF | Web/Mobile

January 19, 2024
Substantial Rise in Coccidioidomycosis in California: Recommendations for Healthcare Providers
CDPH Health Advisory
PDF | Web/Mobile

2023 HAN Communications
December 19, 2023
Urgent Need to Increase Immunization Coverage for Influenza, COVID-19, and RSV Immunizations and Use of Authorized/Approved Therapeutics in the Setting of Increased Respiratory Disease Activity During the 2023 – 2024 Winter Season
CDC Health Advisory
PDF | Web/Mobile

December 8, 2023
Severe and Fatal Confirmed Rocky Mountain Spotted Fever among People with Recent Travel to Tecate, Mexico
CDC Health Advisory
PDF | Web/Mobile

December 7, 2023
Mpox Caused by Human-to-Human Transmission of Monkeypox Virus with Geographic Spread in the Democratic Republic of the Congo
CDC Health Advisory
PDF | Web/Mobile

November 14, 2023
High Blood Lead Levels in Children Consuming Recalled Cinnamon Applesauce Pouches
CDC Health Advisory
PDF | Web/Mobile

October 24, 2023
Limited Availability of Nirsevimab in the United States--Interim CDC Recommendations to Protect Infants from RSV during the 2023-2024 Respiratory Virus Season
CDC Health Advisory
PDF | Web/Mobile

October 23, 2023
First Locally Acquired Case of Dengue in California Detected in Pasadena
LAC DPH Health Alert
PDF | Web/Mobile

October 11, 2023
Preparation for Respiratory Virus Season (COVID-19, Influenza and RSV)
CDPH Health Advisory
PDF | Web/Mobile

October 6, 2023
Prevent Severe RSV in Infants with Maternal or Infant Immunization
LAC DPH Health Advisory
PDF | Web/Mobile

October 4, 2023
Influenza and COVID-19 Immunization or Masking Requirement for Healthcare Personnel
LAC DPH Health Update
PDF | Web/Mobile

September 14, 2023
2023-2024 COVID-19 Vaccines
LAC DPH Health Advisory
PDF | Web/Mobile

September 9, 2023
Immunize Infants and Older Adults to Protect them from Severe RSV
LAC DPH Health Advisory
PDF | Web/Mobile

September 1, 2023
Severe Vibrio vulnificus Infections in the United States Associated with Warming Coastal Waters
CDC Health Advisory
PDF | Web/Mobile

August 29, 2023
Outbreak of Aeromonas Skin Infections Associated with an Adventure Race, Sonoma, California
CDPH Health Advisory
PDF | Web/Mobile

August 28, 2023
Important Updates on Locally Acquired Malaria Cases Identified in Florida, Texas, and Maryland
CDC Health Update
PDF | Web/Mobile

August 16, 2023
Listeria Associated with Soft Serve Ice Cream Distributed to Long-Term Care Facilities
CDPH Health Advisory
PDF | Web/Mobile

July 25, 2023
Global Epidemic Comes to California - Silicosis in Countertop Worker
CDPH Health Advisorys
PDF | Web/Mobile

July 3, 2023
Certifying Deaths Due to COVID-19
LAC DPH Health Information
PDF | Web/Mobile

June 26, 2023
Locally Acquired Malaria Cases Identified in the United States
CDC Health Advisory
PDF | Web/Mobile

June 22, 2023
Request to Submit Specimens from Patients Receiving Intensive Care for Influenza A to Public Health Laboratories
CDPH Health Update
PDF | Web/Mobile

June 21, 2023
Guidance on Measles during the Summer Travel Season
CDC Health Advisory
PDF | Web/Mobile

June 2, 2023
Bicillin® L-A (Benzathine Penicillin G) Shortage
CDPH Health Advisory
PDF | Web/Mobile

May 15, 2023
Potential Risk for New Mpox Cases
CDC Health Update
PDF | Web/Mobile

April 4, 2023
Marburg Virus Disease Outbreaks in Equatorial Guinea and Tanzania
CDC Health Advisory
PDF | Web/Mobile

April 4, 2023
Updates on Identification, Laboratory Testing, Management and Treatment, and Vaccination for Mpox Virus Infection in California
CDPH Health Advisory
PDF | Web/Mobile

March 29, 2023
Elevated Norovirus Activity in California
CDPH Health Advisory
PDF | Web/Mobile

March 3, 2023
Measles Exposure at a Large Gathering in Kentucky, February 2023 and Global Measles Outbreaks
CDC Health Advisory
PDF | Web/Mobile

March 2, 2023
Increased Chikungunya Virus Activity in Paraguay and Associated Risk to Travelers
CDC Health Advisory
PDF | Web/Mobile

February 24, 2023
Increase in Extensively Drug-Resistant Shigellosis in the United States
CDC Health Advisory
PDF | Web/Mobile

February 24, 2023
Xylazine in Illicit Drugs Increasing Overdose Risks
LAC DPH Health Advisory
PDF | Web/Mobile

February 2, 2023
Outbreak of Extensively Drug-resistant Pseudomonas aeruginosa Associated with Artificial Tears
CDC Health Advisory
PDF | Web/Mobile

2013-22 HAN Communications
To see previously issued health alerts:
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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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