Los Angeles Health Alert Network

Contact Information
Los Angeles Health Alert Network
Email: lahan@ph.lacounty.gov
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.

For COVID-19 resources for health professionals in LA County, click here.

2024 HAN Communications
February 1, 2024
LAC DPH Health Alert
First LA County Measles Case PDF | Web/Mobile
January 19, 2024
CDPH Health Advisory
Substantial Rise in Coccidioidomycosis in California: Recommendations for Healthcare Providers PDF | Web/Mobile
2023 HAN Communications
December 19, 2023
CDC Health Advisory
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. PDF | Web/Mobile
December 8, 2023
CDC Health Advisory
Severe and Fatal Confirmed Rocky Mountain Spotted Fever among People with Recent Travel to Tecate, Mexico PDF | Web/Mobile
December 7, 2023
CDC Health Advisory
Mpox Caused by Human-to-Human Transmission of Monkeypox Virus with Geographic Spread in the Democratic Republic of the Congo PDF | Web/Mobile
November 14, 2023
CDC Health Advisory
High Blood Lead Levels in Children Consuming Recalled Cinnamon Applesauce Pouches PDF | Web/Mobile
October 24, 2023
CDC Health Advisory
Limited Availability of Nirsevimab in the United States--Interim CDC Recommendations to Protect Infants from RSV during the 2023-2024 Respiratory Virus Season PDF | Web/Mobile
October 23, 2023
LAC DPH Health Alert
First Locally Acquired Case of Dengue in California Detected in Pasadena PDF | Web/Mobile
October 11, 2023
CDPH Health Advisory
Preparation for Respiratory Virus Season (COVID-19, Influenza and RSV) PDF | Web/Mobile
October 6, 2023
LAC DPH Health Advisory
Prevent Severe RSV in Infants with Maternal or Infant Immunization PDF | Web/Mobile
October 4, 2023
LAC DPH Health Update
Influenza and COVID-19 Immunization or Masking Requirement for Healthcare Personnel PDF | Web/Mobile
September 14, 2023
LAC DPH Health Advisory
2023-2024 COVID-19 Vaccines PDF | Web/Mobile
September 9, 2023
LAC DPH Health Advisory
Immunize Infants and Older Adults to Protect them from Severe RSV PDF | Web/Mobile
September 1, 2023
CDC Health Advisory
Severe Vibrio vulnificus Infections in the United States Associated with Warming Coastal Waters PDF | Web/Mobile
August 29, 2023
CDPH Health Advisory
Outbreak of Aeromonas Skin Infections Associated with an Adventure Race, Sonoma, California PDF | Web/Mobile
August 28, 2023
CDC Health Update
Important Updates on Locally Acquired Malaria Cases Identified in Florida, Texas, and Maryland PDF | Web/Mobile
August 16, 2023
CDPH Health Advisory
Listeria Associated with Soft Serve Ice Cream Distributed to Long-Term Care Facilities PDF | Web/Mobile
July 25, 2023
CDPH Health Advisory
Global Epidemic Comes to California - Silicosis in Countertop Workers PDF | Web/Mobile
July 3, 2023
LAC DPH Health Information
Certifying Deaths Due to COVID-19 PDF | Web/Mobile
June 26, 2023
CDC Health Advisory
Locally Acquired Malaria Cases Identified in the United States PDF | Web/Mobile
June 22, 2023
CDPH Health Update
Request to Submit Specimens from Patients Receiving Intensive Care for Influenza A to Public Health Laboratories PDF | Web/Mobile
June 21, 2023
CDC Health Advisory
Guidance on Measles during the Summer Travel Season PDF | Web/Mobile
June 2, 2023
CDPH Health Advisory
Bicillin® L-A (Benzathine Penicillin G) Shortage PDF | Web/Mobile
May 15, 2023
CDC Health Update
Potential Risk for New Mpox Cases PDF | Web/Mobile
April 4, 2023
CDC Health Advisory
Marburg Virus Disease Outbreaks in Equatorial Guinea and Tanzania PDF | Web/Mobile
April 4, 2023
CDPH Health Advisory
Updates on Identification, Laboratory Testing, Management and Treatment, and Vaccination for Mpox Virus Infection in California PDF | Web/Mobile
March 29, 2023
CDPH Health Advisory
Elevated Norovirus Activity in California PDF | Web/Mobile
March 3, 2023
CDC Health Advisory
Measles Exposure at a Large Gathering in Kentucky, February 2023 and Global Measles Outbreaks PDF | Web/Mobile
March 2, 2023
CDC Health Advisory
Increased Chikungunya Virus Activity in Paraguay and Associated Risk to Travelers PDF | Web/Mobile
February 24, 2023
CDC Health Advisory
Increase in Extensively Drug-Resistant Shigellosis in the United States PDF | Web/Mobile
February 24, 2023
LAC DPH Health Advisory
Xylazine in Illicit Drugs Increasing Overdose Risks PDF | Web/Mobile
February 2, 2023
CDC Health Advisory
Outbreak of Extensively Drug-resistant Pseudomonas aeruginosa Associated with Artificial Tears PDF | Web/Mobile
2013-22 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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