About one third of the US population had been infected with SARS-CoV-2 by the end of 2020, according to a modeling study published online August 26 in Nature. Dr Jeffrey Shaman Jeffrey Shaman, PhD, professor in the Department of Environmental Health Sciences and director of the Climate and Health Program at the Columbia […]
A new study says the one-dose Johnson & Johnson vaccine provides less protection against the Delta and Lambda variants than against the original COVID-19 strain. The study, which was published Tuesday in the online journal bioRxiv, said the J&J vaccine’s effectiveness in neutralizing those two variants was “significantly decreased” over time. People […]
Long-haul COVID-19 patients face many health threats — including a higher chance of dying — up to 6 months after they catch the virus, according to a massive study published in the journal Nature. A second study, released by the CDC on Friday, also found lingering symptoms months later among COVID-19 patients who […]
NEW YORK (AP) — The U.S government’s first look at the real-world use of COVID-19 vaccines found their effectiveness was nearly as robust as it was in controlled studies. The two vaccines available since December — Pfizer and Moderna — were 90% effective after two doses, the Centers for Disease […]
