born at the same time and raised in the same settings as those known to have been exposed to Zika in the womb.
“Zika exposure can be a very difficult condition to diagnose in retrospect, so we can’t rule out undiagnosed Zika infection in a control group of children enrolled at the same time,” Nielsen-Saines said.
“Neurodevelopmental tests should be done simultaneously in similar populations with the same background,” she suggested.
“These children require close attention and ongoing surveillance, so that prompt interventions to improve their development can be provided if needed,” Nielsen-Saines said.
More information
The U.S. Centers for Disease Control and Prevention has more on Zika.
