In a Phase 3 trial of more than 18,000 volunteers across three countries, an mRNA influenza vaccine from Pfizer has ...

Allergic reactions to the flu shot are very rare, affecting only one or two people per million doses. If you have trouble breathing, hives, or swelling after the flu shot, seek emergency care ...

Simultaneous administration of a COVID-19 mRNA booster shot and the seasonal influenza vaccine slightly increased the risk of systemic reactions during the following week compared with a booster shot ...

In a large-scale trial, modRNA was significantly better at preventing confirmed flu cases than a typical seasonal flu shot.

The idea that you can get the flu from the flu vaccine is a long-standing fallacy. Here’s what to tell someone who thinks ...

Pfizer-funded study finds a next-gen mRNA flu shot works better against current strains — but causes more short-term side ...

In Ottawa, the Children’s Hospital of Eastern Ontario has reinstated public-health measures to protect against viral spread.