02/01/2016 11:30 EST

Microcephaly Zika: What This Rare Birth Defect Does

In Brazil, there has been an increased number of babies born with microcephaly.

The Zika virus is a mosquito-borne ailment causing concern in the Americas. While the virus has been around for decades, this is the first time it has spread to this extent.

The majority of those who get Zika don't even experience the virus' mild symptoms. However, the World Health Organization is warning women who are pregnant or women planning to get pregnant that Zika has a possible link to birth defects in babies.

The Public Health Agency of Canada’s website states: “In Brazil, there has recently been a significant increase in number of babies born with birth defects (congenital malformations), such as infants born with an abnormally small head and microcephaly (an underdeveloped brain).”

What exactly is microcephaly and how does it affect babies? Watch the video above to find out.

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