CURRENT AFFAIRS

Detailed explanation-1: -It is transmitted by infected mosquitoes between and among humans and animals, including birds, which are the virus’s reservoir host. First isolated in the West Nile district of Uganda in 1937, WNV is today found commonly in Africa, Europe, the Middle East, North America, and West Asia.

Detailed explanation-2: -Today, the virus is found commonly in Africa, Europe, the Middle East, North America, and West Asia. In India, antibodies against WNV were first detected in humans in Mumbai in 1952 and virus activity has since been reported in southern, central, and western India.

Detailed explanation-3: -Severe illness can occur in people of any age; however, people over 60 years of age are at greater risk. People with certain medical conditions, such as cancer, diabetes, hypertension, kidney disease, and people who have received organ transplants, are also at greater risk.

Detailed explanation-4: -ATLANTA-Since West Nile fever first appeared in the United States in 1999, more than 45,000 people have been infected, and nearly 2000 of them are known to have died, for a roughly 4% fatality rate.