West Nile Virus
West Nile Virus was first detected in the western hemisphere in 1999 and has since spread to every state in North America. It has also spread throughout Canada and Central America. The disease is developed in mosquitoes that then pass it on to humans, birds and other animals. There have been 15,000 reported infections in the U.S. and the virus has been responsible for over 500 deaths. It is estimated that thousands more have been infected but have shown little to no symptoms. Some symptoms include nausea, fever, loss of vision, and paralysis. These severe symptoms can last for up to a week and cause permanent neurological damage. There is less than a 1% chance of contracting West Nile Virus.