Zika virus, which causes microcephaly in infants, has become a global emergency. While a World Health Organisation briefing being circulated by the International Maritime Organisation says that it has found no justification for restrictions on travel or trade seafarers do face a risk of infection, if small.
The disease is spread by mosquitoes, Aedes aegypti, which also transmit dengue, chikungunya, and Yellow Fever. There have been reports of sexual transference.
Seven countries have so far reported an increase in the incidence of cases of microcephaly, also known as Guillain-Barré syndrome, coinciding with a Zika virus outbreak. Zika virus is known to circulate in Africa, the Americas, Asia, and the Pacific region.
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