Add Yahoo as a preferred source to see more of our stories on Google. Dr. Neville Anderson, right, tries to distract Perry Roj, 4, while nurse Breanna Kirby gives her a DTaP polio vaccination. Her mom ...

California health officials are urging high-risk residents to get vaccinated against mpox after a potentially more-severe ...

A bill attempting a small change to California's medical vaccine exemption system failed in committee, but its authors still ...

The emergence of the BA.3.2 strain comes amid broader uneasiness about COVID vaccination rates among seniors, who are ...

A bipartisan bill in California would make it easier for some children to attend school without having to receive vaccines.

California is challenging a revision of the U.S. childhood immunization schedule issued earlier this year under the Trump administration as part of a multistate lawsuit announced on Tuesday, Feb. 24.

Cases of mpox and related skin sores are rising in California, prompting health officials to recommend vaccinations for those ...

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Symptoms can include frequent vomiting, watery diarrhea and fever, and may last several days or a week.

A series of federal actions aimed at pressuring states to allow parents to opt out of school vaccine mandates for religious or personal reasons threatens to undermine California’s ironclad ban on such ...