Myocarditis, a rare side effect, occurs mostly after the second dose. So in some countries, officials are trying out single doses for children. By Apoorva Mandavilli Even as parents in the United States wrestle with difficult questions over vaccinating their children...
In a highly unusual decision, the C.D.C. director, Rochelle Walensky, reversed a move by agency advisers and endorsed additional doses of the Pfizer-BioNTech vaccine for health care workers, teachers and other workers at risk. By Apoorva Mandavilli and Benjamin...
A series of studies found that the Moderna vaccine seemed to be more protective as the months passed than the Pfizer-BioNTech vaccine. Here’s why. By Apoorva Mandavilli It was a constant refrain from federal health officials after the coronavirus...
Independent experts, including government scientists, were skeptical of the research from Israel, which included limited data over a short period. By Apoorva Mandavilli Wading into an acrimonious debate over booster doses, researchers in Israel reported on...
By Apoorva Mandavilli None of the data on coronavirus vaccines so far provides credible evidence in support of boosters for the general population, according to a review published on Monday by an international group of scientists, including some at the Food...
The variant retreated unexpectedly in Britain and India, but has begun to rebound. The United States may take an even bumpier path, scientists said. By Apoorva Mandavilli, Benjamin Mueller and Shalini Venugopal Bhagat The United States has entered the fourth wave of...
Scientific understanding of the coronavirus variant is changing quickly. Here’s a recap of the most important findings. By Apoorva Mandavilli Citing new evidence that vaccinated Americans with so-called breakthrough infections can carry as much coronavirus...
Worried about a vulnerable population as the Delta variant surges, administration officials are taking a new tack. By Apoorva Mandavilli The Food and Drug Administration is speeding efforts to authorize extra doses of the coronavirus vaccines for Americans with...
By Apoorva Mandavilli The coronavirus vaccine made by Johnson & Johnson is much less effective against the Delta and Lambda variants than against the original virus, according to a new study posted online on Tuesday. Although troubling, the findings...
By Apoorva Mandavilli People living with H.I.V. are more likely to become severely ill with Covid-19 and more likely to die if hospitalized than others infected with the coronavirus, according to a large new study. Nearly half of H.I.V.-infected men older than 65 who...
June 29, 2021 ~ The New York Times ~ by Apoorva Mandavilli A study finds that the Pfizer and Moderna vaccines could offer protection for years. The vaccines made by Pfizer-BioNTech and Moderna set off a persistent immune reaction in the body that may protect against...