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Aiding and Abetting a Virus

Viruses are the ultimate freeloaders. The best among them — influenza, smallpox and SARS-CoV-2 — spread easily among human hosts while delivering high mortality...

One Trick to Dropping Covid Risk

Good quality sleep can boost your immune system’s T-cells to fight off infection and lower your COVID-19 infection risk.

FDA Approves Covid-19 Pfizer Vaccine for Kids Age 12–15

The FDA expanded the emergency use authorization for the Pfizer messenger RNA Covid-19 vaccine for kids age 12–15 years old.

Is Getting COVID Shots in the Same Arm Better?

Do individuals get more protection against COVID-19 if they get their vaccinations and boosters in the same arm?