The number of influenza cases is surging across the United States, putting significant strain on many hospitals. We asked the ...

To maintain vaccine efficacy, WHO regularly updates influenza vaccine strains based on global epidemiological, virological, ...

甲型H1N1流感病毒，这个名字听起来就像是从科幻电影里走出来的反派角色。它不像普通流感那样“温和”，而是带着一股“致命”的气息，让人闻之 ...

Babies, toddlers may get vaccine shots after trials; Few suffer serious side effects from H1N1 flu vaccine in Canada; H1N1 jab plan to be expanded citywide; Two die after H1N1 vac ...

Every child who is 6 months or older should get an annual flu shot. Babies and older children are at especially high risk of potentially serious complications from the flu. The be ...

So far, fewer than half of US children and older adults have been vaccinated during this year’s high-severity flu season.

At a national level, H1N1 and H3N2 are each responsible for roughly half of the influenza A cases. However, the ratio of H1N1 to H3N2 varies between regions, and thus different networks.

Pre-existing immunity against seasonal H1N1 flu might help explain why most reported human cases of H5N1 bird flu in the U.S. have not resulted in lethal outcomes. Pre-existing immunity against ...

Bengaluru: Flu cases are surging across the city, driving a sharp rise in demand for vaccinations. Clinics now administer ...