"The city of Dallas is experiencing a widespread outbreak of mosquito-borne West Nile Virus that has caused and appears likely to continue to cause widespread and severe illness and loss of life," — Michael Rawlings "
Penurious Penguin writes: "After nearly 700 reported cases of West Nile virus and 14 deaths, the city of Dallas has declared a state of emergency. West Nile virus can be asymptomatic or produce multiple symptoms, but can also lead to fevers, and the potentially fatal meningitis or encephalitis. Birds are the most common carriers and mosquitoes are the vector for human infection. From the BBC: