Pfizer, Moderna vaccines found to be 94 percent effective in health workers in CDC's largest such study; "The researchers estimated that those who were fully vaccinated were 94 percent less likely to develop symptomatic COVID-19"

Pfizer, Moderna vaccines found to be 94 percent effective in health workers in CDC's largest such study; "The researchers estimated that those who were fully vaccinated were 94 percent less likely to develop symptomatic COVID-19": https://ift.tt/3uNeruE Read more... https://ift.tt/3eJCe9c