microcephaly

Animal and cell culture studies show evidence that dengue antibodies can both neutralize and enhance Zika, but human investigations have only found protective effects.

Studies in mice suggest that other flaviviruses, such as West Nile virus and Powassan virus, may cause birth defects, too. 

The rise occurred in areas with confirmed local transmission, according to a new CDC report. 

Signaling pathways triggered by the mother’s immune system may cause complications during fetal development.

One amino acid change within a viral structural protein makes the difference between mild cases of brain damage and severe microcephaly in mice.

Studies of infected rhesus monkeys reveal the virus’s long-term hiding places in the body.

Infants born to mothers who were infected with the virus during pregnancy—including babies who do not show signs of microcephaly—may experience other birth defects.

A literature review of more than 100 studies confirms that microcephaly, Guillain-Barre syndrome, and related conditions are linked to Zika virus infection.

Microcephaly is but one of the birth defects associated with infection in babies, a study suggests. The virus persists and replicates in the infant brain, according to another study.

Researchers report on more than a dozen cases in which babies who showed signs of in-utero infection but were born without symptoms of congenital Zika syndrome went on to develop brain abnormalities. 

A laboratory study finds the virus in the cerebellum in addition to body fluids.

Scientists estimate the risk to fetuses exposed to the virus in utero.

Researchers in Brazil ponder whether virus alone causes birth defects; Colombia declares epidemic over; first Zika-related microcephaly case reported in Europe

Sexual transmission more common than thought; NIH to track infections among Olympians; Zika-related birth defects draw attention to another common virus

Head circumference is not an accurate indicator of viral infection in newborns, researchers report.

Babies born to mothers infected with Zika during the third trimester have a low risk of developing microcephaly, researchers report.

New recommendation from the World Health Organization could affect millions of people across Latin America and the Caribbean.

Placental macrophages called Hofbauer cells are particularly vulnerable to infection by the virus, a study shows.

A fetus whose mother is infected with Zika during the first trimester of her pregnancy has a risk of between 1 percent and 13 percent of developing microcephaly, according to a study.