Some U.S. newborns still get HIV despite efforts to screen for it. Here’s why

More than half of U.S. newborns diagnosed with HIV in their first year of life had not been given a treatment known to prevent postnatal transmission from mother to child. That suggests that some maternal infections have been missed, researchers report in the July Pediatrics.

“We need to do a better job of identifying HIV in pregnant women,” says Kengo Inagaki, a pediatric infectious diseases physician at the University of Michigan in Ann Arbor.

Pregnant women are…