Los Angeles Health Alert Network

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

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
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:
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.
Los Angeles County Seal: Enriching lives through effective and caring services