CDC: West Nile virus illness continue to decline

Jul 01, 2010

(AP) -- Last year's West Nile virus season was the mildest in eight years, and just one case of serious illness has been reported so far this year.

U.S. health officials on Thursday said there were 386 cases of severe West Nile illness and 33 deaths last year. That's a far cry from the peak years of 2002 and 2003, when illnesses numbered nearly 3,000 and deaths surpassed 260.

West Nile was first reported in the United States in 1999. It's spread by mosquitoes that often pick up the virus from birds they bite. Most cases occur in July through September.

Severe symptoms including neck stiffness, disorientation, coma and .

One possible reason for fewer cases is that birds may be developing immunity to the virus.

Explore further: Predicting chronic pain in whiplash injuries

More information: CDC report: http://www.cdc.gov/mmwr

0 shares

Related Stories

Hurricanes help stop West Nile virus

Jan 23, 2006

Hurricanes caused widespread damage last year across southern Louisiana, but they reportedly produced one benefit: they helped stop West Nile virus.

Study shows long-term West Nile effects

Aug 16, 2006

U.S. medical experts say half of those infected with West Nile virus have ongoing health concerns more than a year later, including fatigue and tremors.

New and improved test for West Nile virus in horses

Aug 20, 2008

A new test for West Nile virus in horses that could be modified for use on humans and wildlife may help track the spread of the disease, according to an article in the September issue of the Journal of Medical Microbiology.

Recommended for you

Predicting chronic pain in whiplash injuries

25 minutes ago

While most people should expect to fully recover from whiplash injuries within the first few months, about 25 percent have long-term pain and disability that lasts many months or years.

What is campylobacter, and what are we doing about it?

5 hours ago

Campylobacters are spiral-shaped bacteria that often colonize the intestines of animals grown for food (as well as other animals)—and they can cause acute diarrheal disease (called campylobacteriosis) in ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.