The seasonal flu shot is a yearly vaccine administered to protect against the flu, or influenza. Here are the facts and side effects of the shot.

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Pfizer said it will seek regulatory approval for a Lyme disease vaccine candidate despite failing a late-stage trial. Pfizer said not enough people contracted Lyme disease to be confident in the ...

Matthew Herper covers medical innovation — both its promise and its perils. An experimental vaccine from Pfizer and Valneva reduced the risk of developing Lyme disease by more than 70%, according to ...

Four doses of an experimental vaccine to protect against Lyme disease reduced the number of tick-borne infections by more than 70 percent, according to Pfizer and Valneva, the pharmaceutical companies ...

The future of the US Centers for Disease Control and Prevention’s panel of vaccine advisers is unclear, even among its recently appointed members. On Monday, a federal judge temporarily blocked the US ...

Public health advocates have largely applauded a Massachusetts judge’s ruling on March 16, 2026, to temporarily block major changes to vaccine policy made by the Department of Health and Human ...

AHS is often caused by brain injury or neurodegenerative illnesses, but there is not enough research to determine any consistent cause or why it occurs. “Alien hand is little investigated because it ...

On Monday, a federal judge issued a preliminary ruling with a harsh reprimand for the Trump administration: You’ve done this vaccine stuff all wrong. The Trump administration likely broke the law, the ...

mRNA vaccines saved millions of lives during COVID-19 but have limitations like waning immunity and complex production. Scientists are now testing a new platform called DoriVac, which uses folded DNA ...

CHICAGO, March 17 (Reuters) - A federal court injunction on Monday put a check on Health Secretary Robert F. Kennedy Jr.'s rapid assault on U.S. vaccine recommendations, but months of turmoil and ...

A federal judge blocked a set of changes to the childhood vaccine schedule recommended by allies of Health and Human Services Secretary Robert F. Kennedy, dealing a setback to the Trump administration ...