Johnson & Johnson said the booster generated a “rapid and robust” increase in antibodies nine times higher than seen four weeks after the vaccine’s first and only dose was given.
The Pfizer shot was 88% effective at preventing infection a month after the second dose, but that fell to 74% after five to six months, the study found.
Democrats and Independents are increasingly worried about the threat of Covid-19 to the country while Republicans, practically no more concerned about the coronavirus than they were last month, are more concerned about immigration and the government.
On Monday, the Food and Drug Administration granted full approval for Pfzer/BioNTech’s Covid-19 vaccine, now marketed under the name Comirnaty, for everyone aged 16 and up.
Taxpayers, businesses and workers will be paying back some $2.3 billion in Covid-19 hospital expenses from June and July alone that could have been easily prevented with vaccination, new research suggests.
Dr. Joshua Liao discusses how framing can be used to combat over-optimism about vaccination, which contributed to premature decisions to drop masking and social distancing requirements and public confusion.
Dr. Matt Binnicker, an expert in the diagnosis of infectious diseases, explains why hospitalization rates are the key metric against which to measure the success of Covid-19 vaccines.