
By BY RONI CARYN RABIN from NYT Health https://ift.tt/2TZu1pp

A study conducted in the United Kingdom finds that one dose of the Pfizer vaccine provided about 33% protection against the Delta variant, first identified in India.

Caffeine might increase the risk of an eye disease in people who have a genetic susceptibility.
A new study finds those who have adequate levels of vitamin D when diagnosed with breast cancer have better long-term outcomes.