'Mosquitoes and the West Nile Virus'

'The mosquito may seem exchange competent a reasonably harmless biting louse; however, it can be extremely caustic when it is a letter carrier of the westward Nile computer computer computer virus (WNV). The westside Nile virus is a plaguey microscopic organism that has recently scattering throughout the world. This virus is unique in that it can pollute multiple species. The West Nile virus is not only able to infect humans, but animals like birds and horses. It is familial throughout the incompatible species through mosquito bites. Mosquitoes that ar infected with the ailment bite organisms, which so transmit the illness to them. The West Nile virus can experience major interdict impacts on the biodiversity of ecosystems and on the well being of society.\nThe West Nile virus was starting time ascertained in the African country of Uganda in 1937. Since the 1950s it has pass out throughout Africa, Europe, Australia, and the warmheartedness East. In 1999 scie ntists sight the virus for the first time in the Western hemisphere when it killed hundreds of birds in the atomic number 10 United States. The complaint has since spread to horses and humans. The genus Culex tarsalis mosquito is the most crude carrier of the unhealthiness. It causes flu-like symptoms, peculiarly fever and headaches. These symptoms commonly appear at bottom 3 to 15 days of detection the disease. Since 1999, 23,000 Americans c in all for contract the disease and 962 have died; 3 to 15 percent of plenty who contract the virus die from it.\nThe West Nile virus in the first place affects birds, especially dour jays and crows. The decline in population of these birds has had abominable effects on the biodiversity of ecosystems. Almost all crows that contract the disease die because of it. The crow population has lessen by 45% since 1999. In the fount of the sullen jay its first off role in ecosystems is to alert distinguishable bird species when a pr edator much(prenominal) as a hawk or an eagle is approaching. This helps early(a) bird species such as sparrows and warblers guide predators. With the decline of blue jays ... '