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Flu hitting young people harder this year

The flu is hitting younger people harder this season than in years past, the Centers for Disease Control and Prevention reported Thursday.

People between the ages of 18 and 64 represent 61 percent of all influenza-related hospitalizations recorded during the current flu season — a significant increase compared with previous years when this age group represented about 35 percent of cases.

More flu deaths than usual have also occurred in people under 65. Adults between 25 and 64 account for more than half of flu deaths this season, according to the CDC, compared with less than a quarter last year.

“Influenza can make anyone very sick, very fast and it can kill,” said CDC Director Dr. Tom Frieden. “Vaccination every season is the single most important thing you can do to protect yourself.”

A pregnant woman in the South Bay area died from flu-related illness, along with her unborn baby, the Los Angeles County Department of Public Health announced Thursday.

A total of 52 people in the county have died from the flu during the current flu season, officials said.

“This sad event demonstrates that serious complications can occur with flu infection in pregnant women,” said Jonathan Fielding, director of the county Public Health Department. “Therefore, it is critical that all pregnant and postpartum women get vaccinated to protect themselves against the flu.

“We recommend that everyone, six months of age and older, receive either the influenza shot or the nasal spray vaccine and to practice basic hygiene, such as hand washing and covering coughs and sneezes, to prevent the spread of influenza and other respiratory diseases,” he said.

CDC experts estimate only a third of people 18 to 64 had been vaccinated by November. About 40 percent to 45 percent of Americans get vaccinated each year, Frieden said.

The CDC’s Morbidity and Mortality Weekly Report noted this year’s flu vaccine reduces the chance of having to go to the doctor for treatment by about 60 percent across all age groups. In past years, the vaccine’s effectiveness has ranged from 30 percent to 65 percent.

The CDC has known for weeks that the dominant flu strain this season is the H1N1 virus, which first emerged in April 2009 and caused a pandemic. It’s included in all flu shots and nasal vaccines this year, according to the CDC report.

“We are committed to the development of better flu vaccines, but existing flu vaccines are the best preventive tool available now,” Frieden said.

Pregnant women are at particularly high risk of developing serious complications from the flu, such as pneumonia.

Fifty pediatric flu-related deaths have been reported during the current flu season, according to the CDC report. Adult flu deaths are not reported on a national basis, but the CDC estimates that between 3,000 and 49,000 people die each year because of the flu and flu-related illness.

When H1N1 first surfaced, California health officials decided to make reporting fatal influenza cases in all individuals under 65 mandatory. As of Feb. 14, local health officials had reported 243 deaths.

“The 405 reports of severe cases (i.e., fatal and ICU cases combined) were more than in any season since the 2009 pandemic,” officials wrote in the CDC report.

Influenza activity in the United States remained elevated through Feb. 8, according to the CDC. Twenty-four states reported widespread flu activity that week.

“Widespread” means that more than 50 percent of geographic regions in a state — counties, for example — are reporting flu activity. The designation addresses the spread of the flu, not its severity.

Experts expect elevated flu activity in parts of the United States for several more weeks, especially in states where flu activity started later.

“I want to remind you that the season is not over,” said Dr. Anne Schuchat, director of the National Center for Immunization and Respiratory Diseases. “There is still a lot of influenza circulating. If you haven’t been vaccinated yet, it’s not too late for you to benefit.”

In addition to getting the vaccine, washing your hands frequently and staying home when you’re sick can help you and others get through the flu season. Doctors recommend using antivirals within the first two days of experiencing any flu-like symptoms.

CNN’s Jacque Wilson, Miriam Falco and Ashley Hayes as well as City News Service contributed to this report.

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