WEDNESDAY, Aug. 13, 2014 (HealthDay News) -- The high-dose flu shot protects seniors better than the standard dose does, a new study finds.
About one in four cases of flu in older patients vaccinated with the standard dose could be prevented if the high-dose vaccine were used instead, the researchers reported.
"The study demonstrated a 24 percent reduction in influenza illness among the participants who received the high-dose vaccine compared to those who received the standard dose," said study co-author Dr. David Greenberg, vice president for scientific and medical affairs and chief medical officer for Sanofi Pasteur U.S., the maker of the Fluzone High-Dose vaccine and funder of the trial.
This protection is over and above the protection one gets from the standard flu shot, Greenberg noted.
He pointed out that the added protection is essential for older people. "People 65 and older account for about 60 percent of hospitalizations due to flu and about 90 percent of deaths that are flu-related," he said.
Older people tend to have weaker immune systems and don't respond as well to the standard flu shot, Greenberg explained. The high-dose vaccine was designed to address these weaknesses, he said.
Fluzone High-Dose vaccine is an inactivated influenza vaccine containing four times the vaccine found in the standard dose, Greenberg explained.
Dr. Len Horovitz, a pulmonary specialist at Lenox Hill Hospital in New York City, said he recommends the high-dose vaccine for his older patients. "People 65 and older do not process vaccines as well as younger people," he explained.
"Protection from the flu vaccine is not 100 percent -- it's about 60 percent effective," Horovitz said. "But if you can increase it by 15 or 20 percent, th
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