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Flu Levels Continue to Fall, CDC Says

FRIDAY, Feb. 15 (HealthDay News) -- Flu activity continued to decrease in many areas of the United States during the week ending Feb. 9, federal health officials reported Friday.

According to the Centers for Disease Control and Prevention:

  • Eleven states and New York City experienced high activity (Alabama, California, Idaho, Kansas, Michigan, Missouri, Nevada, New Jersey, Texas, Utah and Vermont).
  • Ten states experienced moderate activity (Arizona, Colorado, Illinois, Indiana, Louisiana, Minnesota, North Dakota, Oregon, South Dakota and Virginia).
  • Thirteen states and the District of Columbia experienced low activity (Arkansas, Florida, Georgia, Hawaii, Iowa, Massachusetts, Mississippi, Nebraska, New Mexico, New York, Oklahoma, Washington and Wyoming).
  • Sixteen states experienced minimal activity (Alaska, Connecticut, Delaware, Kentucky, Maine, Maryland, Montana, New Hampshire, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, West Virginia and Wisconsin).

The flu continued to hit older people hard, with more than 50 percent of hospitalizations involving adults 65 years and older.

Sixty-four children have died from the flu this season, with five deaths reported last week, the CDC said.

There's no system to report adult deaths from flu, but the agency said the number of deaths remains higher than the threshold used to declare a flu epidemic.

The predominant strain of circulating flu this season continues to be influenza A H3N2, which typically poses bigger problems for young children and the elderly, according to the CDC. But, predominant strains can vary across states and regions of the country, the agency noted.

The 64 pediatric deaths so far compare to 153 deaths reported during the 2003-04 season, which was another H3N2 season, the agency noted.

An estimated 36,000 people die from the flu and its complications in a typical season, according to the CDC. From 1976 to 2006, estimates of flu-associated deaths in the United States ranged from a low of about 3,000 to a high of about 49,000 people.

Flu season usually peaks in late January or early February.

The best defense against the flu remains the flu vaccine and it's not too late to get vaccinated, the CDC said. The agency recommends that everyone 6 months of age and older get vaccinated.

This year's vaccine appears to be well matched for the circulating flu strains, the CDC said. A recent report put the vaccine's effectiveness at 62 percent. No vaccine is 100 percent effective. But if flu strikes, vaccination often results in milder illness, the agency said.

Two antiviral medications, Tamiflu and Relenza, can reduce flu symptoms and the course of the disease. To be effective, however, they must be started within 48 hours after symptoms appear.

Flu symptoms include fever, cough, fatigue, head and body aches, and runny nose. People at particular risk for flu and its complications are pregnant women, those 65 and older and anyone with a chronic illness. The CDC urges these people to get the flu vaccine, which is available as an injection or nasal spray and in a stronger dose for seniors.

More information

For more on flu, visit the U.S. Centers for Disease Control and Prevention.

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