County health officials are trying to better understand the factors, such as being immunocompromised, that may put fully vaccinated people at risk of dying from COVID-19, Ferrer said. Health officials have said it’s not unexpected that some people would become infected even after being fully vaccinated. Over the last week, the county has reported an average of about 2,400 new coronavirus cases per day, The Times’ data show. Given how readily it spreads, experts say it preys particularly easily on those who have yet to be fully vaccinated. AdvertisementEarlier this month, Fauci cited data showing the Pfizer-BioNTech and Moderna vaccines were 95% and 94% effective, respectively, versus symptomatic COVID-19.

Source: Los Angeles Times July 30, 2021 12:03 UTC