(CNN) Health experts have said that data so far has shown that Covid-19 vaccines prevent symptoms of the virus -- but a new study suggests that the Moderna and Pfizer/BioNTech vaccines may also prevent infections. "We're going to be shipping this week's doses and next week's doses" starting Saturday, Andy Slavitt, a senior adviser to the White House Covid-19 response team, told CNN on Friday. Too risky to give single doses, Fauci saysOne way to protect more people quickly, some experts suggest, is to prioritize administering first doses of the vaccine. "We will stick with the scientifically documented efficacy and optimal response of a prime followed by a boost with the mRNA vaccines," Fauci told a White House briefing. Companies are just starting tests of younger age groups but have been testing their vaccines on 12- to 17-year-olds, Fauci told a White House briefing.

Source: The Nation February 20, 2021 17:03 UTC