If anything, the virus is becoming even more concerning.
An unrelated study, from scientists at the Centers for Disease Control and Prevention, may shed some light on why Zika is so harmful to developing brains.
"The effort is to make that test available to pregnant women ... by working with providers, and making tests available to them through private labs or state labs", Castillo said. The outcomes of pregnancies of women who contracted Zika while pregnant were compared to women who did not contract Zika during their pregnancy.
Cases of microcephaly - smaller than normal heads that can signal underdeveloped brains - were actually rare in the study.
Schaffner said the study gives further evidence that any pregnant woman exposed to the virus should be monitored for a long after giving birth since some birth defects may not be evidence immediately after birth.
"A troubling aspect of our study is that children were assessed in early infancy, when some subtle neurologic manifestations of disease are hard to identify", the authors reported in the New England Journal of Medicine. As numerous babies with microcephaly, believed to be linked to the Zika virus, turn one-year-old in Recife, doctors and mothers are adapting and learning treatments to assist and calm the children.
Without the presence of Zika virus, microcephaly occurs in a range between two babies per 10,000 live births, or.0002 percent, and 12 babies per 10,000 live births, or.0012 percent, in the Unites States, according to the CDC. This is unlike rubella - another virus infamous for causing birth defects - where the danger period for infection is in the first 16 weeks of pregnancy, the authors noted.
Birth defects were seen in 21 babies and in five miscarriages, stillbirths or abortions.
Former WWE wrestler body slams would-be robber
According to a police report, Felix approached Gaspard and lifted up his shirt, revealing that he had a gun. He was released from WWE in late 2010, after a career that made him a member of the duo Cryme Tyme.
The virus' ability to persist for over half a year could explain why some infants who were born without microcephaly began to show developmental problems as time went on. Among women infected in the first trimester, 55% experienced what the researchers called "adverse outcomes".
Another study this week in the New England Journal of Medicine, done in Brazil by doctors at the University of California, Los Angeles, found that among 117 infants born to Zika-infected moms, 42 percent had "grossly abnormal" clinical or brain imaging findings. "The newborns may appear to be normal, but they may not be normal at six months, and there's a whole gradient of problems".
In this study of preliminary data, researchers from various public health departments and the U.S.
In a press release issued Wednesday, the Cameron County Department of Health and Human Services recommends that all pregnant women who live in or have traveled to Brownsville be tested for Zika. Zika is spread primarily by mosquitoes and has mostly affected the Caribbean and Latin America.
"It shows that the rate of microcephaly and other fetal malformations related to Zika is similar among babies born in the United States - whose mothers were infected during travel to a dozen countries with active Zika transmission - to the estimated rate in Brazil", said CDC Director Dr. Tom Frieden.
What other complications are associated with Zika?
This Q & A will tell you what you need to know about Zika.