California Health Alert Network (CAHAN) San Diego Alerts
See below for current (2024 and 2025) alerts sent to the San Diego medical and public health community. For alerts prior, see the Archive.
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
Health Advisory—November 22
Health Advisory—November 15
Health Advisory: Increase in Mycoplasma Pneumoniae Activity in the United States
Health Advisory—November 14
Health Advisory: Pertussis Increasing in San Diego County
Health Advisory—October 25
Health Advisory: Second Locally Acquired Dengue Case in San Diego County
Health Advisory—October 18
Health Advisory: Updated California Syphilis Screening Recommendations
Health Advisory—October 10
Health
Advisory: First Marburg Virus Disease Outbreak in the Republic of Rwanda
Health Advisory—October 6
Health Advisory: First Locally Acquired Case of Dengue in San Diego County
Health Advisory—October 4
Health Advisory: Confirmed Human Cases of H5 Avian Influenza in California
Health Advisory—September 13
Health Advisory: Cross-border pollution in the Tijuana River Valley and potential health effects
Health Advisory—September 9
Health Advisory—August 30
Health Advisory: Increased Oropouche Virus Activity and Associated Risk to Travelers
Health Advisory— August 26
Health Advisory: Increase in Extensively Drug-Resistant Shigella Specimens
Health Advisory—August 26
Health Advisory: Increase in Human Parvovirus B19 Activity in the United States
Health Advisory—August 15
Health Advisory—July 24
Health Advisory: Disruptions in Availability of Becton Dickinson (BD) BACTEC™ Blood Culture Bottles
Health Advisory—June 28
Health Advisory: Increased Risk of Dengue Infections in the U.S.
Health Advisory—June 18
Health Advisory: Influenza A Testing Guidance: Enhanced Surveillance During the Summer Months
Health Advisory—June 13
Health Advisory: Severe Illness Potentially Associated with Diamond Shruumz-Brand Products
Health Advisory—May 20
Health Advisory—April 24
Health Advisory: Botulism-like Illness After Cosmetic Injections
Health Advisory—April 12
Health Advisory—April 10
Health Advisory—April 1
Health Advisory: Second Measles Case in San Diego County for 2024
Health Advisory—March 26
Health Advisory Update #3: Extension of Bicillin L-A Shortage
Health Advisory—March 22
Health Advisory Update #2: Candida auris in San Diego County
Health Advisory—March 20
Health Advisory: Measles Prevention in International Travelers
Health Advisory—February 27
Health Advisory: Increase in Tuberculosis in San Diego County
Health Advisory—February 2
Health Advisory: First Measles Case in San Diego County, since 2019
Health Advisory—January 12
Health Advisory Update #2: Outbreak of Norovirus Disease linked to Consumption of Raw Oysters
Health Advisory—January 10
Health Advisory: Suspected Foodborne Illness linked to Seafood
Health Advisory—January 8
Call the Epidemiology Unit at (619) 692-8499, or send an e-mail, for
more information.
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