This chart shows how the share of respondents who say they are very or somewhat confident that various vaccines are safe.

No person-to-person spread has been detected, but that doesn’t mean an H5N1 avian influenza pandemic isn’t possible or even ...

The vaccine effectiveness in children against influenza A H1N1 viruses — the type that has predominated this flu season — ranged from 54% to 61% against flu infection requiring medical care ...

The autumnal equinox may be three weeks away, but fall’s unofficial arrival has already ushered in the updated, 2024–25 flu vaccines. An influenza virus can make you ill any time of year. What ...

Protection from shots like the flu vaccine typically takes a couple of weeks to kick in, so getting one now may offer protection ahead of the holidays.

Syringes with vaccines are prepared at the LA Care and Blue Shield of California Promise Health Plans' Community Resource Center where they were offering members and the public free flu and COVID ...

Flu vaccines can range from $25 to more than $100, depending on the shot. CORRECTION (Sept. 5, 2024, 11:09 a.m. ET): A previous version of this article misstated the availability of Covid ...

FluMist vaccine vs. flu shot The FluMist vaccine, manufactured by AstraZeneca, was approved in 2003 for health care providers to give patients, but the method has gotten renewed attention due to a ...

New flu data from the southern hemisphere suggests this year’s vaccine isn't as effective against severe illness as previous iterations, a finding that may not bode well for Americans as the ...

Last flu season, the vaccine had a 51.9% effectiveness in those countries. Vaccine effectiveness “might be similar in the Northern Hemisphere” if similar flu viruses circulate, ...