West Nile Infects Human Placenta (IMAGE)

WashU Medicine

West Nile Infects Human Placenta

Caption

West Nile virus (green) grows in human placenta, where the cells are marked red with blue nuclei. A study has found that viruses related to Zika, such as West Nile, can cross the placenta in mice and cause fetal brain damage and death.

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Nitin Arora

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