Does West Nile virus have a broad host range?

What populations are most at risk for West Nile virus?

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.

What is the reservoir for West Nile virus?

Reservoir: Birds are the primary reservoirs for WNV. 5. Source: Infective mosquito. WNV is also transmitted through WNV-infected blood products and organ tissue, and also potentially transplacentally and through blood screening.

How do scientists know that robins are the preferred host for West Nile virus?

The robin is one of those key bird species and plays such a major role in West Nile virus transmission that Kilpatrick calls robins “super-spreaders” of the virus. This is because mosquitoes that transmit the virus seem to prefer robins over other, more abundant species of bird such as house sparrows.

Can humans spread West Nile virus?

Transmission. West Nile virus is rarely transmitted from one human to another but rather is spread through the following: Infected Mosquitoes Generally, WNV is spread by the bite of an infected mosquito. Mosquitoes become infected when they feed on infected birds.

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Do all mosquitoes carry West Nile virus?

Only mosquitoes can carry and spread West Nile virus. How is the virus spread locally to humans? The southern house mosquito (Culex quinquefasciatus) is the region’s most common vector of West Nile virus. Only certain species of mosquitoes can transmit the virus (a Flavivirus).

Is West Nile curable?

Because it’s a viral condition, West Nile virus doesn’t have a cure. But you can take over-the-counter pain relievers, such as ibuprofen or aspirin, to relieve symptoms of West Nile virus such as muscle aches and headaches.

Can you get West Nile virus twice?

Can a human get West Nile virus twice? Medical professionals don’t believe so. Like many other viruses, medical tests indicate that once a person has been infected with West Nile, he/she develops a natural immunity to future infection by the virus for life.

What animals get West Nile virus?

West Nile virus (WNV) primarily affects birds, but can also be infect bats, horses, cats, dogs, chipmunks, skunks, squirrels, domestic rabbits, alligators and humans. How can my animal get West Nile fever? WNV is spread by the bite of an infected mosquito (vector).

What state has the most West Nile virus?

Colorado continues to be the most affected state (with 1,542 cases and 27 deaths… As of 11 September, 37 states have reported human cases of WNV. The cumulative total is 3,307 cases and 64 deaths.

Which state has the most West Nile cases?

While Arizona leads the country with 97 out of a total 479 West Nile disease cases nationwide, 83 cases have been found in Colorado this year, 48 in California, 38 in Nebraska, 26 in South Dakota, and 22 in North Dakota.

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Is West Nile virus in Australia?

West Nile virus/Kunjin disease is found in parts of Australia, particularly the Northern Territory and northern Western Australia. The virus has been detected in regional Victoria.