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In U.S., swine flu has hit 1 in 6

Nurse Gail Symanik, left, receives the nasal version of the swine flu vaccine from nurse practitioner Judy Gallob in October.

Associated Press

Nurse Gail Symanik, left, receives the nasal version of the swine flu vaccine from nurse practitioner Judy Gallob in October.

ATLANTA — Swine flu has sickened about 50 million Americans and killed about 10,000, according to new estimates released by federal health officials Thursday.

That means about 1 in 6 Americans have had the illness, said Dr. Thomas Frieden, director of the Centers for Disease Control and Prevention.

The estimates are for the first seven months of the pandemic, from April through mid November. The new numbers are a big jump from previous estimates, which said swine flu had sickened 22 million and killed about 4,000 through mid October.

Most of the increase is due to cases that occurred after early October, when the nation saw the peak of a second wave of illness, CDC officials said.

The CDC also estimates that nearly 200,000 people were hospitalized through mid November — about the same amount that occurs normally in an entire winter flu season.

While the elderly account for most of the hospitalizations and deaths from seasonal flu, the largest proportion of reported swine flu hospitalizations and deaths are in nonelderly adults, CDC officials said. More than three-quarters of the deaths were people ages 18 to 64, according to the CDC.

The new estimates seem to echo an unpublished, in-depth CDC analysis of 100 U.S. swine flu deaths. About 80 percent of those deaths were in people ages 20 through 59, and 45 percent were obese, that research found.

Flu estimates are tricky because many illnesses are mild and go unreported, and hospitalizations and deaths often involve maladies beyond the flu. The CDC actually thinks that between 34 million and 67 million Americans have gotten sick from swine flu, but gave 50 million as an estimate.

Flu estimates are also difficult to compare. Seasonal flu kills about 36,000 Americans each year, according to a long-standing estimate. But that number includes many people who had not only seasonal flu and related pneumonia but also heart attacks and strokes.

In U.S., swine flu has hit 1 in 6 12/10/09 [Last modified: Thursday, December 10, 2009 10:58pm]

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