Medical experts debunk flu shot myths: vaccines use inactive virus that cannot cause illness. Discover what side effects actually mean for your immunity.

H3N2 subclade K strain — is responsible for 90% of influenza A cases across the U.S., which has led to double the cases in New Jersey.

The U.S. also endured its highest flu-related hospitalization rates in almost 15 years last flu season, with unvaccinated ...

Vaccines are an important part of modern medicine, helping to build up a person's immunity and protect them from illness, ...

We’re finally making progress toward a universal flu vaccine.

Amid a severe flu season, the CDC ends its universal flu shot recommendation for kids. Experts explain why this is dangerous ...

Flu specifically is in a very interesting year. Epidemiologists are concerned that this year is going to be worse than ...

Getting the flu vaccine doesn't guarantee that you won't get sick, but it significantly lowers your chances of contracting it ...

The makers of the nasal spray version of the flu vaccine say now they know why it has failed to protect young U.S. children against swine flu — fragile doses got too warm. The AstraZeneca FluMist ...

Add Yahoo as a preferred source to see more of our stories on Google. One of the primary reasons influenza is spreading so rapidly in New Jersey and beyond is a mutated variant that was discovered ...