FDA OKs mixing COVID-19 vaccines, approves Moderna, J&J boosters

U.S. regulators are extending COVID-19 boosters to Americans who got the Moderna or Johnson & Johnson vaccine. They also said Wednesday anyone eligible for an extra dose can get a brand different from the one they received initially.

Cancer doctor shares tips on lowering risk of COVID-19 breakthrough infections

The death of General Colin Powell from complications of COVID-19 highlights the risk of breakthrough infection in people with weakened immune systems. But, one cancer specialist says there are ways cancer patients and survivors and others with compromised immune systems can lower their risk of exposure to the virus.