Oct. 19, 2009

Dr. Rainer: What to do to prepare for the flu

Each year, more than 200,000 people are hospitalized and 36,000 people die from seasonal flu complications. This fall, no one is taking lightly their health care provider's advice to get a flu shot. H1N1, formerly called “swine flu,” first identified this spring, is expected to have a strong resurgence this fall and winter flu season, according to Dr. Ryan Rainer, chief of staff at Cherokee Medical Center in Centre.
 
“As of September 2009, approximately 9,079 U.S. residents had been hospitalized and more than 593 had died from the disease,” he said. “The Centers for Disease Control and Prevention (CDC), which monitors influenza strains that circulate in the United States each year, predicts that the number of H1N1 infections will again spike during this fall and winter.”

Rainer said the warning is no cause for panic in the community.
“Despite heightened news reports, so far, H1N1 isn't more threatening than seasonal flu,” he said. “From what health officials have observed in the Southern Hemisphere where flu season is now winding down, hospitalizations and deaths seem to be lower than what is typically experienced during seasonal flu.”
Rainer said the worry comes from the fact that more people are susceptible to H1N1 and U.S. health officials are concerned because it hung in so firmly here during the summer – a time of year when the flu usually goes away.

And there is a difference. Seasonal flu, made up of influenza strains that the body has had some exposure to, changes each season, necessitating a new flu vaccine. When someone catches seasonal flu, the body remembers parts of the influenza virus it has previously been exposed to and is able to work through the illness and develop an immune response when it encounters seasonal flu again.
Rainer said H1N1 is known as a “novel” flu, because, unlike seasonal flu – which involves combinations of flu strains that people's immune systems have been regularly exposed to over the years – it is a new virus which many people haven't previously encountered.

“In contrast to traditional seasonal flu, which is particularly dangerous to the elderly, few H1N1 cases have been reported among people age 65 and over,” Rainer said. “Scientists think that one reason the senior population has fared better is that older individuals may have some residual immunity because their body remembers being exposed to earlier strains of H1N1 in 1977 and similar strains in 1957.”

Preparing for flu season
Any flu virus is spread though coughing and sneezing by people who have the virus, or by touching an object that an infected person has touched and then touching your mouth or nose. Rainer said the CDC recommends the following tips to prevent the flu or, if you are already ill, reduce the spread of infection:

_ Cover your nose and mouth when you cough or sneeze. Use a tissue or your arm, not your hands.

_ Wash your hands often – and long – with soap and water, especially after you cough or sneeze. Or use an alcohol-based hand cleaner.

_ Avoid touching your eyes, nose or mouth.

_ Avoid close contact with sick people.

_ Stay home if you are sick for seven days after your symptoms begin or until you have been symptom- and fever-free for 24 hours.

“You may be able to spread the flu virus beginning one day before symptoms develop and up to five days after becoming ill, according to the CDC,” Rainer said. “Children may remain contagious for seven days or more.”

Seasonal Flu Vaccine
Rainer said the CDC advises that the best way to prevent getting seasonal flu is to get a flu vaccination every year, anytime from the beginning of the flu season in September through January and even the later winter months.

“The flu season is comprised of several outbreaks and the peak time varies from year to year, so it's still a good idea to get a flu shot later in the fall or even into the winter months,” Rainer said.

The seasonal flu vaccine is available via the flu shot or a nasal-spray. The flu shot is approved for children ages 6 months and older adults, both healthy individuals and those with chronic medical conditions. The nasal-spray flu vaccine is approved for healthy individuals ages 2 through 49, with the exception of pregnant women. The flu vaccine is safe, effective and, contrary to various rumors, does not cause the flu.
Rainer said some people who get the flu vaccine can still contract the flu.

“This doesn't mean that the vaccine is ineffective,” he said. “The capability of the vaccine to prevent the flu depends on how well the viruses contained in the annual vaccine match those circulating in the human population at a given time.”

H1N1 vaccine: A companion to your annual flu shot
An H1N1 vaccine is under development and projected to be available sometime this month. Since the standard flu vaccine will not protect against the H1N1 virus – and vice versa – health experts recommend getting both the seasonal and the H1N1 flu vaccines.

Rainer said the CDC recommends that pregnant women, children and young adults ages six months to 24 years, health care and emergency services personnel, and anyone with a compromised immune system ages 25 to 64.

“Once the demand for the vaccine is met among these priority groups, the CDC recommends that all individuals ages 25-64 receive the vaccine, and then people age 65 and older, since research shows the risk is lower among this age group,” Rainer said.

For more information about the flu, visit the hospital's Web site at www.cherokeemedicalcenter.com. Click on the Health Resources link.

Editor's note: On Oct. 14, according to state health officials in Montgomery, a Cherokee County man in his 50s became the 17th Alabamian to die from the swine flu. He was not identified by name.