Vaccines

Scientists are in a sprint to find a vaccine that could stamp out the coronavirus pandemic. Dr. Anthony Fauci, the nation's top infectious diseases expert, said on Friday he's "cautiously optimistic" that a safe and effective COVID-19 vaccine will be ready for distribution in early 2021.

A hospital in Texas has cut ties with a nurse who apparently posted about a young patient with the measles in a Facebook group dedicated to "anti-vaxxers," people who reject the scientific evidence of the safety and effectiveness of vaccines.

Screenshots show a self-identified nurse saying the sick child's symptoms helped her understand why people vaccinate their children, but that "I'll continue along my little non-vax journey with no regrets."