California Health Alert Network (CAHAN) San Diego Alerts
See below for current (2025 and 2026) alerts sent to the San Diego medical and public health community. For alerts prior, see the Archive.
Health Advisory — June 18
Health Advisory — June 5
Health Advisory: World Cup 2026 and Summer Mass Gatherings
Health Advisory — May 28
Health Advisory — May 20
Health Advisory: Ebola Disease Outbreak in the Democratic Republic of the Congo and Uganda
Health Alert — May 19
Health
Alert Update #1: Amatoxin Poisoning from Foraged Wild
Mushrooms
Health Alert Update #1: Testing for Potential Hantavirus Infection
Health Alert — May 12
Health Alert: Hantavirus Among Cruise Ship Passengers
Health Alert — March 12
Health Alert: CDPH Recommends Immunizing Infants with RSV Monoclonal Antibodies through April 2026
Health Advisory — February 26
Health Advisory — February 18
Health Advisory: Update #1: Increasing Measles Activity in California
Health Advisory — February 4
Health Advisory: Confirmed Measles Cases in Los Angeles and Orange Counties
Health Advisory — February 3
Health Advisory: Trichophyton mentagrophytes genotype VII (TMVII)
Health Advisory — January 23
Health Advisory Update #1: New World Screwworm Outbreak in Northern Mexico
Health Advisory — January 9
Health Advisory — December 18
Health Advisory: Amatoxin Poisoning from Foraged Wild Mushrooms
Health Advisory — November 18
Health Advisory: Update #1 Silicosis Becomes a Reportable Disease in California
Health Alert — November 12
Health Alert: Outbreak of Infant Botulism Linked to ByHeart Infant Formula
Health Advisory — November 7
Health Advisory: Hepatitis A Cluster and Increased Mpox Cases in San Diego County
Health Advisory — October 21
Health Advisory: Update #4: Community Spread of Clade I Mpox in Southern California
Health Advisory — October 6
Health Advisory: Updates to Fall 2025 Respiratory Virus Vaccine Recommendations in California
Health Advisory — September 22
Health Advisory — September 19
Health Advisory: Ebola Outbreak in the Democratic Republic of the Congo
Health
Advisory — September 8
Health Advisory: New World Screwworm Outbreak in Mexico and Central America
Health Advisory — August 5
Health Advisory: Keeping Patients Safe During Extreme Heat Events
Health Advisory — July 16
Health Advisory Update #4: Update on Bicillin® L-A Availability and New Recall
Health Advisory — July 7
Health Advisory: Increased West Nile Virus detection in mosquitos, San Diego County
Health Advisory — July 3
Health
Advisory: Increased Invasive Meningococcal Disease (IMD), San
Diego County
Health Advisory — March 24
Health Advisory: Xylazine in the San Diego County Drug Supply
Health Advisory — March 11
Health Advisory — February 26
Health Advisory: Adverse Events Following Receipt of Injectable Ceftriaxone
Health Advisory — February 14
Health Advisory: Subtyping of Influenza A in Hospitalized Patients
Health Advisory: Increased adolescent deaths in San Diego County due to seasonal influenza
Health Advisory — February 7
Health Advisory: Marburg virus disease outbreak in Tanzania and Ebola disease outbreak in Uganda
Call the Epidemiology Unit at (619) 692-8499, or send an e-mail, for
more information.
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