An average of 50 children a day end up in emergency rooms because of stroller or baby carrier accidents, and it appears far more of them are suffering brain injuries or concussions than previously believed, said data from the National Electronic Injury Surveillance system. The majority of the injuries (55 percent) occurred in children younger than 1.

Volunteers sought for Zika virus testing

Wanted: Volunteers willing to be infected with the Zika virus for science. If government regulators agree, researchers could find out how much virus it takes to infect someone by injecting paid volunteers with different amounts of lab-grown Zika virus as early as December. That information will help researchers when they’re ready to test a Zika vaccine.

Antipsychotics not tied to birth defects

Taking antipsychotic medicines during pregnancy does not increase the risk for birth defects, a large study has found. Previous studies have been small and have had mixed results. The study, in JAMA Psychiatry, reviewed records of 1,341,715 pregnant women, of whom 9,258 filled prescriptions for the newer atypical antipsychotics such as quetiapine (Seroquel) or aripiprazole (Abilify), and 733 for older typical antipsychotics such as haloperidol (Haldol). All prescriptions were filled in the first trimester. They found there was no difference in the risk for birth defects between those who took the drugs and those who did not. One possible exception was a marginal increase in risk with risperidone (Risperdal), which lead author Krista F. Huybrechts, an assistant professor of medicine at Harvard, said would require further study.

News services