WNBC-TV—November 3, 2010
So far, 1.4 million Americans have received this year's flu shot. For 6 out of 10 people, the only side effect will be a slightly sore arm.
On the other hand, roughly one in five will suffer a low grade fever and what doctors call "malaise."
"Feeling a little tired, having lower energy than usual," explained Dr. Andy Miller, an infectious disease specialist at Hospital for Special Surgery in Manhattan.
"Such symptoms usually last 24 to 48 hours, said Dr. Miller. He pointed out everyone is different, just as every year the flu shot is slightly different.
This year the vaccine contains a swine flu H1N1 component and two strains of flu virus expected to be most prevalent.
Each year both the FDA and CDC make a combined effort to track any adverse effects of flu vaccine.
But with the exception of extreme reactions, side effects tend to be under reported as people are more likely to complain to each other and not necessarily to their doctor.
"I felt like I was getting a head cold and was all stuffy," said one woman.
Indeed, fear of side effects keeps many from being immunized each year.
"Take acetaminophen for pain and fever," recommended Dr. Miller. "Malaise" won't be as bad as 10 days of severe flu," he added.
Read the full story at nbcnewyork.com.