Body (Santa Ana, CA) - The OC Health Care Agency (HCA) has extended recruitment for the CalOptima Health Board of Directors. As a County-Organized Health System, CalOptima Health serves over 829,000 low-income children, adults, seniors and people with disabilities. CalOptima Health launched in 1995 in response to the local health care...

Body A resident of Anaheim has tested positive for West Nile Virus (WNV), becoming the first human WNV infection in Orange County this year. In 2025, Orange County had three WNV human infections. As of July 31st, the California Department of Public Health reported 11 human infections of West Nile Virus...

Body Key Messages California Department of Public Health (CDPH) urges clinicians and local health departments to remain vigilant for acute flaccid myelitis (AFM), which presents as sudden limb weakness usually in children and can lead to permanent paralysis. Increased summer travel and gatherings may elevate circulation of respiratory pathogens, including enterovirus...

Body 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 the risk of severe arboviral neuroinvasive disease among patients who are receiving B cell-depleting or B cell-modulating medications, particularly anti-CD20... Links in this section relate to Body

Body A case of measles has been confirmed in an adult resident of Orange County. This person is a contact to a known case. This is the 6th case of confirmed measles reported in an OC resident in 2026. In 2025 2 cases of measles were reported. Key Message If measles...

Body (Santa Ana, CA) – The OC Health Care Agency (HCA) received confirmation of a measles case in an adult which was locally acquired from a known exposure. The individual visited several public locations during the infectious period including the following: 8/11/26 – 5 p.m. - 10 p.m. – Anaheim Packing...

Body (Santa Ana, CA) –Temperatures in Coastal Orange County are expected to reach 95°F, with Inland areas ranging from the mid‑90s up to 105°F through Friday, August 28. High temperatures increase the risk of heat-related illnesses like heat exhaustion and heatstroke for those at higher risk for heat illness, including people...

Body Document Date FAC Agenda 9-8-2026 Attachment #1... Links in this section relate to Body

Body What You Need to Know Summer in Southern California brings sunshine, outdoor fun—and a hidden health risk few expect: Valley Fever. With Valley Fever Awareness Month, this is a great time to learn how to recognize it, reduce your risk, and protect your loved ones. What is Valley Fever? Valley...

Body (Santa Ana, CA) - The first human deaths associated with West Nile virus (WNV) infection in Orange County in 2026 have been confirmed in older adults this week by OC Health Care Agency (HCA) officials. With a severe season and increased cases reported across California, residents and visitors are urged...