By the age of 2 years, most children have had RSV infection. RSV is a virus that usually causes mild respiratory illness, such as runny nose, cough and cold symptoms. Some children, especially young babies, are more likely to get severe RSV. Last year, Orange County saw record levels of...

Childhood Lead Poisoning Is Preventable Lead poisoning can happen to anyone. Children under age 6 years are at a higher risk for lead poisoning because children’s growing bodies take in more lead than adults. No amount of lead is safe. Even small amounts of lead can harm a child’s brain...

(Santa Ana, CA) – The OC Health Care Agency Environmental Health Division has closed the harbor water area between the Pilgrim Dock, Youth Dock, and Baby Beach in the Dana Point Harbor due to a sewage spill of approximately 20 gallons, which was caused by a blockage in nearby restroom...

The Centers for Disease Control and Prevention (CDC), in collaboration with state and local health departments, is investigating reports of serious adverse events, including deaths, following receipt of injectable ceftriaxone. To date, events have not been associated with a single product manufacturer or lot, and a definitive causal link to...

(Santa Ana, CA) — The Orange County Crisis Intervention Team (CIT) Program has been awarded Gold Level Certification through CIT International, recognizing its outstanding commitment to regional crisis response system development and collaboration between law enforcement and behavioral health professionals. Orange County is the first county in the state to...

The OC Health Care Agency (HCA) has confirmed a case of measles in an infant returning home to Orange County (OC) following international travel. The affected traveler arrived at Los Angeles International Airport (LAX) on Wednesday, February 19. Additional information regarding this traveler’s activity at LAX can be found in...

The Centers for Disease Control and Prevention (CDC) is issuing this Health Alert Network (HAN) Health Update to provide additional information to healthcare providers, public health departments, and the public about the ongoing risk of dengue virus (DENV) infections and updates to testing recommendations in the United States. Dengue activity...

On March 14, 2025, the Food and Drug Administration (FDA) issued a Consumer Advisory advising consumers not to inhale nitrous oxide products from any size canisters, tanks, or chargers as inhaling nitrous oxide recreationally can lead to serious health effects, including death. Just last month, after the introduction of a...

CDPH/Health Advisory- March 25, 2025 - Multiple measles cases have been confirmed in California in recent weeks. All cases have been linked to international travel, reflecting a global rise in measles cases. Health care providers should consider measles in persons presenting with a febrile rash illness and other symptoms consistent...

(Santa Ana, CA) — A bat found at Rancho Santa Margarita Lake has tested positive for rabies. The bat was found on the ground near a walking path around the lake on Thursday, April 17, 2025, at approximately 2:30 p.m. Anyone who may have had physical contact with this bat...