CDC recommends Moderna, Pfizer vaccines over Johnson & Johnson's

People should receive Pfizer or Moderna's COVID-19 vaccines instead of Johnson & Johnson's, the US Centers for Disease Control and Prevention recommended Thursday night. 

The new recommendation followed a vote by a committee of scientists and doctors that gave guidance to the CDC to say the agency should "prefer" the mRNA vaccines (Pfizer and Moderna) over Johnson & Johnson's. The vote was based on rising concerns about a rare but dangerous blood-clotting disorder that can occur within three weeks of receiving Johnson & Johnson. 

Members found that given the safety and wide availability of the other vaccines in the US, and the severity of the rare side effects seen with the Johnson & Johnson vaccine, the CDC should "prefer" that people get either Pfizer's or Moderna's instead of Johnson & Johnson's.