The United States formally withdrew from the World Health Organization on Thursday, making good on an executive order that ...

Scientists in Russia have developed a new variant of the H5N1 bird flu vaccine, adapted to strains currently circulating globally.

Health experts say changes to US childhood vaccine guidance could increase long-term risks for children if vaccination rates ...

Subclade K (previously known as J.2.4.1) is gaining attention because it appears to be spreading much earlier in the flu ...

A planned U.S.-funded study of a hepatitis B vaccine drew widespread condemnation from researchers. Now the host country says it cannot proceed.

Trump justified withdrawing from the health alliance formed in 1948 based on what he viewed as the “mishandling” of the ...

A recent panel of experts discussed how physicians can address patients’ dangerous and misleading beliefs about their health.