Question

H1N1 (Swine Flu)

How effective is the seasonal flu shot and H1N1 vaccine?

A Answers (4)

  • AMichael Roizen, MD, Internal Medicine, answered
    Flu shots are about 70 percent effective at preventing the flu in populations under sixty-five years of age, and somewhat less effective in people over sixty-five. The shots also reduce the severity of the symptoms in people who actually do get the flu. One study found that taking vitamin E and exercising, which boost the immune system, also seemed to improve the overall effectiveness of the vaccine.
    Helpful? 1 person found this helpful.
  • AStacy Wiegman, PharmD, Pharmacy, answered
    The 2011-2012 seasonal flu vaccine protects against three flu influenza viruses, including H1N1. There is not a separate vaccine for H1N1. The effectiveness of flu vaccine varies from season to season. How well the vaccine works depends on the age and health of the person who receives it and how closely it matches the virus the person is exposed to. Some seasons the vaccine is very effective, and some years it does not protect well against the flu. The best way to lower the risk of getting and spreading H1N1 or any strain of flu is getting a seasonal flu shot.
  • AJoe Mercola, DO, Integrative Medicine, answered
    Dr. Joe Mercola - How effective is the seasonal flu shot and H1N1 vaccine?

    Family Physician and Integrative Health Specialist Dr. Joe Mercola discusses the effectiveness of the seasonal flue shot and H1N1 vaccine. Watch Dr. Mercola's video for tips on overall health and wellness.


  • ADavid L. Katz, MD,MPH, Integrative Medicine, answered
    There is some legitimate doubt about the effectiveness of the flu vaccine. It is certainly far from perfect, and the elderly, who most need protection, may need two inoculations to get it. Leaving aside some of the subtleties that complicate measuring vaccine effectiveness in real-world settings, and applying even a low-level estimate of overall vaccine effectiveness, routine flu vaccination produces a decisive overall benefit compared to just taking our chances with the flu.
Did You See?  Close
Can I get a seasonal flu shot and an H1N1 vaccine at the same time?