KEY POINTS
  • The CDC said most of the drugmakers working on a potential coronavirus vaccine have tested only nonpregnant, healthy adults.
  • The trials are expected to expand to children and pregnant women, but it's unclear when researchers will have enough data to make a recommendation for those groups.
An engineer shows an experimental Covid-19 vaccine being tested at the Quality Control Laboratory at the Sinovac Biotech facilities in Beijing, April 29, 2020.

The Centers for Disease Control and Prevention said coronavirus vaccines may not be recommended for children if and when they are first available.

The statement, posted on the CDC's website Wednesday, said most of the drugmakers working on a potential coronavirus vaccine have tested only nonpregnant, healthy adults. The trials are expected to expand to children and pregnant women, but it's unclear when researchers will have enough data to make a recommendation for those groups. It's possible the vaccines could be authorized for limited use in the U.S. before trials testing children are completed, medical experts say.