Bayer has filed separate lawsuits against the creators of three COVID-19 vaccines, claiming they violated intellectual ...

Despite a U.S. factory mixup, more Johnson & Johnson doses are becoming available in the U.S., marking the only single-shot vaccine option. So how effective is it and how does it compare to the Pfizer ...

In 2020, many companies tried to develop effective coronavirus vaccines, but two ended up succeeding and dominating the field: Pfizer (NYSE: PFE) and Moderna (NASDAQ: MRNA). These two vaccine makers ...

Moderna's two-dose Covid-19 vaccine is associated with a higher risk of heart inflammation than Pfizer's, but the benefits of both companies' shots outweigh the risks, according to a Centers for ...