According to an unpublicized report by the Chinese government, the first documented case of Covid-19 was a 55-year-old person living in Hubei province on November 17, 2019. That makes today the first anniversary of the start of the Covid-19 pandemic. From that person (and possibly earlier or concurrent cases), the disease slowly and silently spread until it was determined to be due to a novel coronavirus.
Preliminary results from the trials of the Covid-19 vaccine jointly developed by the University of Oxford and AstraZeneca indicate that the vaccine’s overall efficacy is 70% but that a regimen that calls for a lower first dose is 90% effective.
In a press release (and not a paper in a peer-reviewed journal) based on a preliminary outside review of data from its phase 3 trial, Pfizer says its Covid-19 vaccine was more than 90% effective in preventing the disease.
Last Monday the world got some good news: an early review of the data showed that Pfizer’s Covid-19 vaccine was “more than 90% effective” in preventing the disease. The results pointed to other vaccines also being highly effective against the virus and this morning comes this news: Early Data Show Moderna’s Coronavirus Vaccine Is 94.5% Effective.
This morning, the transition team for President-elect Joe Biden announced the members of his Covid-19 task force.