Unusually warm winters are one reason for larger-than-average outbreaks of West Nile virus in the following summers, a new study finds. Full story
West Nile cases in the U.S. continue to climb, jumping 25 percent in a week, with 1,993 cases nationwide and 87 deaths in the country’s worst outbreak for this time of year since the virus was detected here in 1999. NBC’s Brian Williams reports.
Clinton: Obama ‘should be reelected’; Obama acceptance speech moved indoors; DNC’s big opening night; Obama needs Clinton’s support; Leslie becomes sixth hurricane of season; West Nile cases continue to climb; Researchers: ‘Junk’ DNA plays critical role; Kidnappers attach device to woman in robbery
Barbs exchanged as campaigns heat up; Obama must drive up support; Evacuations possible even as storm cleanup underway; West Nile cases skyrocket; Explosions rattle Syrian capital; Sun Myung Moon, founder of Unification Church, dies at 92; After summer of violence in Chicago, hope for cool and calm;
epa03367655 A handout image made available on 22 August 2012 from the Centers for Disease Control showing a Culex quinquefaciatus female mosquito feeding on human blood. This species is a known vector for West Nile Virus. The female C. quinquefasciatus mosquito is known as one of the many arthropoda
This undated photo provided by the Northwest Mosquito Abatement District shows a Culex pipiens, left, the primary mosquito that can transmit West Nile virus to humans, birds and other animals. It is produced from stagnant water. The bite of this mosquito is very gentle and usually unnoticed by peop