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Geneva - The UN health agency says three cases of the Zika virus have turned up in Guinea Bissau, but it's unclear whether the strain is the same strain as one behind outbreaks linked to head and brain abnormalities in Brazil and elsewhere.
World Health Organisation spokesperson Christian Lindmeier says samples sent to a reference laboratory in Senegal showed Zika but could not determine any link to the virus' recent outbreak in the Americas and the western Pacific.
The agency has been in contact with Guinea Bissau's government, and has previously warned that any country where the Zika-carrying Aedes aegypti mosquito is prevalent could be at risk for Zika spread.
WHO has said the latest Zika strain was found in Cape Verde, a former Portuguese colony like Guinea Bissau and Brazil.
