The Centers for Disease Control and Prevention (CDC) is issuing this Health Alert Network (HAN) Health Advisory to share information and notify clinicians, public health authorities, and the public about recent New World screwworm (NWS) animal cases in the Mexican state of Tamaulipas, which shares a border with the U.S...

(Santa Ana, CA) – A bat in the City of Rancho Santa Margarita has tested positive for rabies. The bat was found near the gate entrance along the Mesa Trail at O'Neill Regional Park, off El Camino Montana Road between El Lazo and Juniper Lane on Tuesday, January 20th, 2026...

In the early years of our lives, mothers are the center of our universe. They bring us life, they kiss our boo-boos, they read to us and tell us stories, they support our families emotionally and often financially, they shape us into the functioning adults we are today. Healthy moms...

The California Department of Public Health (CDPH), in coordination with its partners in the West Coast Health Alliance (WCHA), endorses the 2026 American Academy of Pediatrics (AAP) Recommended Child and Adolescent Immunization Schedule. This schedule differs from recent national changes issued by the U.S. Centers for Disease Control (CDC). The...

(Santa Ana, CA) — The OC Health Care Agency (HCA) has confirmed a case of measles in a young adult who recently travelled internationally. The HCA is notifying individuals who were exposed to the person in healthcare settings. Potential community exposure locations during their infectious period include the following: EoS...

A case of measles has been confirmed in an Orange County resident, an unvaccinated young adult, who had recently traveled internationally. They were not infectious while they travelled. The Health Care Agency’s Communicable Disease Control Division (CDCD) is reaching out to identified contacts. The person was infectious while they visited...

(Santa Ana, CA) – The OC Health Care Agency (HCA) received confirmation today of a measles case in a toddler. At this time, there is no evidence of public exposure linked to this case. Health officials report that there was no travel prior to infection. “Measles is highly contagious. The...

The OC Health Care Agency (HCA) was notified by California Department of Public Health (CDPH) and the Los Angeles Department of Public Health (LADPH) of a confirmed measles case in an international traveler who arrived at Los Angeles International Airport (LAX) and visited Orange County (OC). While infectious, the person...

A case of measles has been confirmed in an Orange County resident, an unvaccinated toddler who by report has not traveled outside of the area or had known exposures. This case is not linked to the other measles case reported in a traveler due to the timing of illness. The...

Community urged to ensure immunity (Santa Ana, CA) – The OC Health Care Agency (HCA) received notification from the California Department of Public Health (CDPH) and the Los Angeles Department of Public Health (LADPH) of a confirmed measles case in an international traveler who arrived at Los Angeles International Airport...