Virus likely to spread across Americas
The WHO warns that the Zika virus is likely to spread across the Americas. The virus has already been found in 21 countries in the Caribbean, North and South America. No treatment or vaccine is available. The virus is spread through the Aedes mosquito. This mosquito is found throughout the Americas with the exceptions of Canada and Chile. 80% of infections do not show symptoms, but there seems to be a link between the virus and impaired fetal development.