The Zika (ZEE'-ka) virus was first discovered in monkey in Uganda in 1947 - its name comes from the Zika forest where it was first discovered. 'The ratio may sound low,' Tesh said, 'but when you consider the number of Aedes aegypti in a tropical urban community, it is likely high enough to allow some virus to persist, even when infected adult mosquitoes are killed.' In the meantime, efforts to curb Zika's spread in the city state, he said, hinged on all citizens using insect repellent and making sure there were no potential mosquito breeding areas around their residential areas. The ongoing Zika outbreak was first detected last year in Brazil, where it has been linked to more than 1,800 cases of microcephaly, and has since spread rapidly through the Americas.
The number of Zika virus infected in Singapore rises above 40.