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: Dallas hospital confirms first Ebola case in US

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

5 /5 (2 votes)
add to favorites email to friend print save as pdf

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

Dallas hospital confirms first Ebola case in US

2 hours ago

A patient at a Dallas hospital has tested positive for Ebola, the first case of the disease to be diagnosed in the United States, federal health officials announced Tuesday.

First case of Ebola diagnosed in US

3 hours ago

The United States has diagnosed its first case of the deadly Ebola virus in a man who became infected in Liberia and traveled to Texas, US health officials said Tuesday.

Study finds acupuncture does not improve chronic knee pain

4 hours ago

Among patients older than 50 years with moderate to severe chronic knee pain, neither laser nor needle acupuncture provided greater benefit on pain or function compared to sham laser acupuncture, according to a study in the ...

Ebola outbreak nears end in Nigeria

4 hours ago

The Ebola outbreak in Nigeria is almost over, US health officials said Tuesday, in a rare sign of authorities turning the tide on the highly contagious disease that has killed more than 3,000 in West Africa.

User comments : 0