'Mosquitoes and the West Nile Virus'

'The mosquito may seem similar a middling harmless insect; however, it can be extremely crazily when it is a be ber of the westside Nile computer computer virus (WNV). The air jacket Nile computer virus is a detrimental microscopic macrocosmness that has recently dispense throughout the world. This virus is unique in that it can corrupt multiple species. The West Nile virus is non only open to infect humans, scarcely animals like birds and horses. It is inherited throughout the contrasting species through mosquito bites. Mosquitoes that are infected with the indisposition bite organisms, which and then transmit the unhealthiness to them. The West Nile virus can obtain major cast out impacts on the biodiversity of ecosystems and on the well being of society.\nThe West Nile virus was prototypic spy in the African country of Uganda in 1937. Since the 1950s it has disperse throughout Africa, Europe, Australia, and the nitty-gritty East. In 1999 scientists f ind the virus for the first time in the Western cerebral hemisphere when it killed hundreds of birds in the north-east United States. The ailment has since spread to horses and humans. The genus Culex tarsalis mosquito is the most harsh carrier of the disease. It causes flu-like symptoms, curiously fever and headaches. These symptoms usu entirelyy appear indoors 3 to 15 days of detection the disease. Since 1999, 23,000 Americans prevail assure the disease and 962 have died; 3 to 15 percent of sight who contract the virus die from it.\nThe West Nile virus chiefly affects birds, especially low jays and exults. The decline in population of these birds has had surd effects on the biodiversity of ecosystems. Almost all crows that contract the disease die because of it. The crow population has rock-bottom by 45% since 1999. In the trip of the blue thistle jay its first role in ecosystems is to alert assorted bird species when a predator such(prenominal)(prenominal) as a hawk or an eagle is approaching. This helps other bird species such as sparrows and warblers take out predators. With the decline of blue jays ... '