The medical condition which causes birth abnormalities in babies that’s being linked to the Zika virus is the main threat to health, the World Health Organization (WHO) emphasized on Wednesday.

A WHO spokesperson said that a global public health emergency had been declared due to the condition known as microcephaly, not Zika.

He was responding to news reports of the first case of Zika transmission inside the United States, which was believed to be sexually transmitted.

Laura Puigvert Alia spoke to the WHO Communications Officer, Gregory Hartl, and asked him whether the new case in Dallas, Texas, was a major cause for alarm.

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