Houston area flu cases spike!

THE CHRON: If you've been putting off your annual flu shot, don't delay any longer: Texas is already being hit hard this flu season.

Houston-area hospitals have seen a spike in the number of emergency room visits for flu-like symptoms, said Porfirio Villarreal, spokesman for the Houston Department of Health and Human Services. During the week of Nov. 18, about 1,580 visits to emergency rooms were attributed to flu-like illnesses, compared with just 249 visits during the same week last year, Villarreal said.

Influenza is a serious disease that can lead to hospitalization or even death, the CDC says.

Every flu season is different, and even healthy people can get very sick from the disease and spread it to others. From 1976 to 2007, estimates of U.S. deaths each year due to flu ranged from 3,000 to 49,000.

"Flu is predictably unpredictable," said Dr. Gail Demmler-Harrison, pediatric infectious diseases specialist at Texas Children's Hospital and pediatrics professor at Baylor College of Medicine. "There's no cause for alarm but cause for action. People should get themselves vaccinated so it doesn't get any worse."

National Influenza Vaccination Week, a campaign established in 2005 to counter the notion that December is too late to get a vaccination, ends Saturday. Once a vaccine is administered, it takes about two weeks to develop immunity.

Although the influenza season usually peaks in February, 48 states and Puerto Rico have reported cases, with rates rising quickly nationwide, the federal Centers for Disease Control and Prevention said this week.

Along with Texas, Louisiana, Mississippi, Alabama and Tennessee are also reporting high levels of activity.

In Houston, Texas Children's Hospital has seen an early start to the season with 123 confirmed cases of Type A influenza and 32 cases of Type B, compared with just two Type A cases in the same span last year, Demmler-Harrison said.

Everyone who is at least 6 months old should get a flu vaccination, but the CDC says it's especially important for these groups:

» People at high risk of developing serious complications like pneumonia if they get the flu, including those with medical conditions such as asthma, diabetes and chronic lung disease.

» Pregnant women.

» People 65 years and older.

» People who live with or care for others who are at high risk of developing serious complications.