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Los Angeles Health Alert Network

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Los Angeles Health Alert Network
Los Angeles Health Alert Network

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.
2018 HAN Communications
December 10
CDC Health Update:
Outbreak of Life-threatening Coagulopathy Associated with Synthetic Cannabinoids Use
November 30
LAC DPH Health Advisory:
New Cases of Hepatitis A Among Persons Experiencing Homelessness and/or Using Illicit Drugs
November 26
LAC DPH Health Alert:
Local Cases of Shiga Toxin-Producing E. Coli Linked to Romaine Lettuce
November 21
LAC DPH/DMH Health Advisory:
Identifying and Managing the Mental Health Impacts of the Woolsey Fire on Residents and First Responders
November 20
LAC DPH Health Advisory:
Measles Outbreaks in Israel, NYC and Surrounding Areas
October 18
CDPH Notification:
National Increase in Reports of Suspected Acute Flaccid Myelitis Cases
October 12
LAC DPH Health Update:
Outbreaks of Flea-BorneTyphus in Los Angeles County
October 4
LAC DPH Health Alert:
Outbreak of Flea-Borne Typhus in Downtown Los Angeles
October 1
LAC DPH Health Advisory:
Human Case of St. Louis Encephalitis in Los Angeles County
September 7
CDC Health Advisory:
Advice to Clinicians about Leptospirosis in U.S. Travelers Returning from Northern Israel
August 20
LAC DPH Health Alert:
Measles Exposure in Los Angeles County
August 10
CDC Health Advisory:
Influenza A (H1N2) Variant Virus in CA Residents with Exposure to Pig
LAC DPH Health Advisory:
Middle East Respiratory Syndrome Coronavirus
July 31
CDPH Health Update:
Ebola Outbreak in the Democratic Republic of Congo is Declared Over
July 11
CDC Health Update:
Rising Numbers of Deaths Involving Fentanyl and Fentanyl Analogs, Including Carfentanil, and Increased Usage and Mixing with Non-opioids
July 2
LAC DPH Health Alert:
Wound Botulism Cases Associated with Heroin
June 11
CDC Health Advisory:
Outbreak of Hepatitis A Virus (HAV) Infections among Persons Who Use Drugs and Persons Experiencing Homelessness
June 8
CDC Health Update:
Managing and Reporting Shigella Infections with Possible Reduced Susceptibility to Ciprofloxacin
May 25
CDC Health Advisory:
Outbreak of Life-Threatening Coagulopathy Associated with Synthetic Cannabinoids Use
May 24
LAC DPH Health Advisory:
Fentanyl Overdoses Related to Illicit Drug Use
May 23
CDPH Health Alert:
Ebola Outbreak in the Democratic Republic of Congo
April 25
CDPH Health Advisory:
Multistate Outbreak of Serratia Marcescens Bloodstream Infections
April 11
CAHAN San Diego Health Advisory:
Wound Botulism Cases Associated with Black Tar Heroin
March 15
LAC DPH Health Update:
Need for Continued Vigilance for Hepatitis A Infection and Vaccination for High Risk Groups
March 9
LAC DPH Health Advisory:
Potential Mumps Exposure from National Cheerleading Competition in Texas
January 4
LAC DPH Health Advisory:
Updated California Zika Testing Guidelines and a Local Case of Sexually Transmitted Zika
2013-17 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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