Generally speaking, microcephaly is a condition where a baby's head is much smaller than expected. To be diagnosed, a baby's head needs to be two standard deviations below the average, or less ...

Brazil usually has 150 cases of microcephaly a year; now, it's investigating thousands of cases. Even if microcephaly was undercounted in the past, there clearly seems to have been an increase.

Microcephaly is a condition where a baby is born with an abnormally small head and brain. This is the first baby born with microcephaly from Zika in the continental U.S.

Microcephaly can arise from a number of different conditions: genetic ones like Edmund's, and infections during pregnancy from viruses like measles and Zika. Symptoms and prognosis can vary widely.

Christine Grounds still recalls the moment nine years ago when a neurologist told her that her newborn son, Nicholas, had microcephaly. His head was too small. His brain had not developed properly ...

Among patients who got blood tests, 13% had dengue, according to the WHO. A doctor draws blood from Luana, who was born with microcephaly, at the Oswaldo Cruz Hospital in Recife, Brazil.

Mom in possible Zika-related case says her original doctor said she'd be "fine." — -- The mother of an infant born in New Jersey with microcephaly said a doctor in her home country of ...

Even if only 1% of Zika-infected babies develop microcephaly, that could overwhelm the health systems of developing countries that aren't equipped to care for severely disabled children, said ...

Seeing microcephaly numbers skyrocket in other countries could make or break the case. So far, only Brazil has reported an uptick in microcephaly (though French Polynesia did in an earlier outbreak).

The babies in the microcephaly group had a range of health problems. For instance, 84% of them had a low birthweight for their gestational age (compared with only 6% of babies in the control group).

Still, the island nation also experienced a noticeable increase in microcephaly during its 2013-2014 Zika outbreak. French Polynesia normally has no more than two cases of microcephaly each year.

Microcephaly, a neurological condition in which babies are born with abnormally small heads, is perhaps the most well-known disorder associated with the virus.