People who have received both COVID-19 doses have an around 50 to 60 percent reduced risk of infection from the Delta coronavirus variant, including ...
A group of 15 French volunteers on Saturday left a cave where they had stayed for 40 days, in an experiment probing the limits of human adaptability ...
The first dose of Pfizer Inc’s COVID-19 vaccine is 85 percent effective, a study of healthcare workers at an Israeli hospital has found, potentially ...
The scramble to research the novel coronavirus has exposed weaknesses in the vetting of healthcare data being supplied by a growing number of US firms ...
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