Intravenous injection of mRNA Covid vaccine can induce acute myopericarditis in mice

This study provided in vivo evidence that inadvertent intravenous injection of COVID-19 mRNA vaccines may induce myopericarditis.  More...

USA: Coronavirus vaccine breakthrough infections are potentially contagious

Researchers reported that among 20 fully-vaccinated healthcare workers with vaccine breakthrough COVID-19 cases, all were infected with coronavirus variants.  More...