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The typical flu season occurs from fall to early spring. The length and severity of an epidemic may vary. Some lucky individuals can get through the season flu-free. But be prepared to be surrounded by sneezing and coughing for a few months out of every year.
According to the National Institute of Allergy and Infectious Diseases (NIAID), the flu affects between 5 and 20 percent of the U.S. population each year.
Flu symptoms usually include:
The symptoms that come with the flu can keep you bedridden for a week or more. Flu prevention is key if you don’t want to miss out on:
The flu virus changes and adapts every year, which is why it’s so widespread and difficult to avoid. New vaccines are created and released every year to keep up with these rapid changes. Before each new flu season, federal health experts predict which three strains of the flu are most likely to thrive. They use that information to manufacture the appropriate vaccines.
The flu shot works because it prompts your immune system to produce antibodies. In turn, these antibodies help the body fight off the types of flu virus that are present in the vaccine. After receiving the flu shot it takes about two weeks for these antibodies to fully develop.
Some people may be more prone to infection than others. That’s why the Centers for Disease Control (CDC) recommends that everyone 6 months of age or older be vaccinated against the flu.
The shots are not 100-percent effective in preventing the flu. But they are the most effective method to protect against this virus and its related complications.
Certain groups are at an increased risk for getting the flu and developing potentially dangerous flu-related complications. It’s important that people in these high risk groups be vaccinated. According to the CDC, these individuals include:
Chronic medical conditions that could increase your risk of complications include:
According to the CDC, people under the age of 19 who are on aspirin therapy as well as people taking steroid medications on a regular basis should also be vaccinated.
Workers in public settings have more risk of exposure to the disease, so it’s very important that they receive a vaccination. People who are in regular contact with at-risk individuals, such as the elderly and children, should also be vaccinated. Those people include:
People who live in close quarters with others, such as college students and members of the military, are also at a greater risk for exposure.
Some people should not get a flu shot. Don’t get a flu shot if you have the following conditions.
People who have had a bad reaction to the flu vaccine in the past should not get a flu shot.
People who are severely allergic to eggs should avoid vaccination. If you are mildly allergic, talk to your doctor. You may still qualify for the vaccine.
People who are allergic to mercury should not get the shot. Some flu vaccines contain trace amounts of mercury to prevent vaccine contamination.
Guillain-Barre syndrome (GBS) is a rare side effect that can occur after receiving the flu vaccine. It includes temporary paralysis. If you are at high risk for complications and have had GBS, you may still be eligible for the vaccine. Talk with your doctor to determine if you can receive it.
If you have a fever the day of the vaccination, you should wait until it’s gone before receiving the shot.
Flu shots are safe for most people. Many people incorrectly assume that the flu vaccine can give them the flu. You can’t get the flu from the flu shot. But some people may experience flu-like symptoms within 24 hours of receiving the vaccine.
Possible side effects of the flu shot include:
These symptoms may occur as your body responds to the vaccine and builds antibodies that latter will help prevent illness. Symptoms are typically mild and go away within a day or two.
The U.S. Food and Drug Administration (FDA) has recently approved a high-dose flu vaccine (Fluzone High-Dose) for people 65 and over. Since the immune system response weakens with age, the regular flu vaccine is often not as effective in these individuals. They’re at the highest risk for flu-related complications and death.
This vaccine contains four times the amount of antigens compared to a normal-dose. Antigens are the components of the flu vaccine that stimulate the immune system’s production of antibodies, which combat the flu virus.
According to a study in the New England Journal of Medicine, the high-dose vaccine proved to be 24 percent more effective in preventing flu in adults 65 years of age and older than the standard-dose vaccine.
The FDA recently approved another type of vaccine, Fluzone Intradermal. This vaccine is for people between 18 and 64 years of age. The typical flu shot is injected into the muscles of the arm. An intradermal vaccine uses smaller needles that enter just under the skin.
The needles are 90 percent smaller than those used for a typical flu shot. This may make the intradermal vaccine an attractive choice if you are afraid of needles.
This method works just as well as the typical flu shot, but side effects are more common. These can include the following reactions at the site of the injection:
According to the CDC, some people who receive the intradermal vaccine may also experience:
These side effects should disappear within three to seven days.
If you meet the following three conditions, you may be eligible for the nasal spray form of the flu vaccine (LAIV FluMist):
According to the CDC, the spray is nearly equivalent to the flu shot in its effectiveness.
However, certain individuals should not receive the flu vaccine in nasal spray form. According to the CDC, these individuals include:
A seasonal flu shot is the single best way to protect against the flu. You can schedule an appointment to receive a flu shot at your doctor’s office or at a local clinic. Flu shots are now widely available at pharmacies and grocery stores, with no appointment necessary.
Written by: Eloise Porter
Medically reviewed on: Nov 03, 2016: Deborah Weatherspoon, PhD, RN, CRNA, COI
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