By — Helen Branswell, STAT Helen Branswell, STAT Leave your feedback Share Copy URL https://www.pbs.org/newshour/health/cdc-zika-infection-without-symptoms-can-harm-fetus-too Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter CDC: Zika infection without symptoms can harm fetus too Health Jun 15, 2016 5:27 PM EDT Zika infection in the third trimester of pregnancy may not be as dangerous for a developing fetus as infection earlier in pregnancy, scientists from Colombia and the Centers for Disease Control and Prevention reported Wednesday. No cases of microcephaly or other obvious birth defects were seen among the babies born to a group of 616 Colombian women who contracted Zika in their third trimester, the researchers reported in an article published by the New England Journal of Medicine. In a more concerning finding, the scientists also reported that four women who had no symptoms of a Zika infection during pregnancy gave birth to babies who had microcephaly. The newborns were confirmed to have Zika virus in their systems. One of the many unanswered questions about Zika is whether women who are infected but don’t have any symptoms run the same risk of having a baby with microcephaly — an abnormally small head — as women who have symptoms of the infection. The article published Wednesday doesn’t indicate if the risk is the same, but it does make clear that pregnant women who have no symptoms may still give birth to a Zika-affected infant. It is estimated that four of five people infected with Zika virus are asymptomatic. This article is reproduced with permission from STAT. It was first published on June 15, 2016. Find the original story here. We're not going anywhere. Stand up for truly independent, trusted news that you can count on! Donate now By — Helen Branswell, STAT Helen Branswell, STAT Helen Branswell is STAT’s infectious diseases and public health reporter. @HelenBranswell
Zika infection in the third trimester of pregnancy may not be as dangerous for a developing fetus as infection earlier in pregnancy, scientists from Colombia and the Centers for Disease Control and Prevention reported Wednesday. No cases of microcephaly or other obvious birth defects were seen among the babies born to a group of 616 Colombian women who contracted Zika in their third trimester, the researchers reported in an article published by the New England Journal of Medicine. In a more concerning finding, the scientists also reported that four women who had no symptoms of a Zika infection during pregnancy gave birth to babies who had microcephaly. The newborns were confirmed to have Zika virus in their systems. One of the many unanswered questions about Zika is whether women who are infected but don’t have any symptoms run the same risk of having a baby with microcephaly — an abnormally small head — as women who have symptoms of the infection. The article published Wednesday doesn’t indicate if the risk is the same, but it does make clear that pregnant women who have no symptoms may still give birth to a Zika-affected infant. It is estimated that four of five people infected with Zika virus are asymptomatic. This article is reproduced with permission from STAT. It was first published on June 15, 2016. Find the original story here. We're not going anywhere. Stand up for truly independent, trusted news that you can count on! Donate now