People who have received mRNA Covid vaccines are at least twice as likely to be infected with the coronavirus as unvaccinated people, according to two new papers from researchers in Indiana and Ohio. Worse, the newer of the two studies, which covered Omicron this fall, found risk actually rises with the number of shots. People who had received three or more shots were more than three times as likely to be infected as those who hadn’t received any. For people who have been vaccinated - especially those who have received a third or fourth shot - the papers will make...