This was the stock's second consecutive day of losses.

U.S. Health Secretary Robert F. Kennedy Jr. has championed "medical freedom" while simultaneously limiting access to COVID-19 ...

U.S. public health authorities have skirted normal procedures and announced two major policy changes that will likely reduce ...

The US Food and Drug Administration has approved a new lower-dose vaccine for active immunization against COVID-19 caused by severe acute respiratory syndrome coronavirus 2.