The World Health Organisation (WHO) have warned that the Zika virus is likely to spread across all of the Americas, and then possibly the entire globe. The infection has already been reported in 21 countries including North and South America, and the Caribbean. Thousands of babies have been born with underdeveloped brains as a result, and doctors say, as yet, there are no treatment options available. BBC News reports: The virus was first detected in 1947 in monkeys in Africa. There have since been small, short-lived outbreaks in people on the continent, parts of Asia and in the Pacific Islands. But it has spread on a massive scale in the Americas, where transmission was first detected in Brazil in May 2015. Large numbers of the mosquitoes which carry the virus and a lack of any natural immunity is thought to be helping the infection to spread rapidly. Mosquito Zika is transmitted by the bite of Aedes mosquitoes, which are found in all countries in the region except Canada and Chile. In a statement, The Pan American Health Organization (PAHO), the regional office of the WHO, said: “PAHO anticipates that Zika virus will continue to spread and will likely reach all [...]