CDC: Mild flu season apparently winding down

Apr 07, 2009 By MIKE STOBBE , AP Medical Writer

(AP) -- The flu season is winding down and turning out to be one of the mildest in years, according to data from the U.S. Centers for Disease Control and Prevention.

One possible explanation: The generally was well-matched to the circulating flu viruses, CDC officials said.

The CDC compares flu seasons by looking at adult deaths from the flu or pneumonia in 122 cities, and at reports of flu-related deaths in children. Both were down significantly this year compared with the severe 2007-2008 season.

The flu causes 200,000 hospitalizations and 36,000 deaths annually, according to official estimates. The elderly, young children and people with chronic illnesses are at greatest risk.

Vaccination is the best protection, health officials say. A record 146 million doses of flu vaccine were distributed for the 2008-2009 season, although the CDC doesn't have data on how many people actually got them.

Flu vaccines are often between 70 percent and 90 percent effective. In the 2007-2008 season, the vaccine was only 44 percent effective. No such figure has been released for this year, but tests indicate the vaccine matches up well to at least two of the flu viruses going around.

The main kind of flu virus circulating this year was a Type A H1N1. Flu seasons in which an H1N1 predominates are generally milder than seasons when a Type A H3N2 does, said Dr. Alicia Fry, a CDC epidemiologist.

This was perhaps toughest on doctors.

In recent years, doctors routinely prescribed a drug called Tamiflu to flu patients. But this season's H1N1 strain has been resistant to that drug. Only a few years ago, CDC officials announced that H3N2 flu had become resistant to two other antiviral medications, rimantadine and amantadine.

Lately, doctors have had to use a patchwork of medications and hope for the best.

"It was more challenging" this year, said Dr. Bruce Ribner, an Atlanta infectious disease physician.

©2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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User comments : 2

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deatopmg
5 / 5 (1) Apr 07, 2009
It's winding down because the sun is getting higher.

www.vitamindcouncil.com
Ashy
not rated yet Apr 08, 2009
Flu decreased because this winter was slighter than previous. Vaccination have not influence at flu, but it concerned with increase of sudden deaths. For example number of heart attacks during the vaccination day at 10-20 times bigger than average.

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