Since its arrival in Brazil in 2013, the Zika virus has marched steadily north. The Zika vaccine effort is a race against time. For those who are not pregnant, Zika infection is generally not dangerous. In the experiments, the mice cleared Zika virus from their bloodstreams even when their army of antibodies was “relatively modest,” said Barouch. The Centers for Disease Control and Prevention has concluded that Zika infection in pregnant women is the cause of grievous brain abnormalities in the infants they bear.

Source: Los Angeles Times June 28, 2016 15:00 UTC