Flu vaccines help protect against the main types of flu viruses, although there's still a chance you might get flu. CDC recommends that people get a flu vaccine by the end of October. It takes about two weeks for the vaccine to produce a sufficient antibody response against the flu. Explore travel health tips and vaccines to prevent disease while abroad. nearly 500,000 people are hospitalized from flu-related complications. These strains vary from flu season to flu season each year. Bacterial respiratory infections also are a serious type of infection, and the simultaneous viral and bacterial infection can overwhelm the function of the lungs and the body.
Flu symptoms include fever, cough, sore throat, runny nose, headache, fatigue, and muscle aches. ©1996-2020 MedicineNet, Inc. All rights reserved.
Below is a summary of the benefits of flu vaccination and selected scientific studies that support these benefits. While a flu vaccine cannot give you flu illness, there are different side effects that may be associated with getting a flu shot or a nasal spray flu vaccine. Flu is a respiratory infection, that is, an infection that develops primarily in the lungs. The so-called swine flu pandemic of 2009 was caused by a novel influenza A virus designated H1N1 based upon its surface protein types.
The flu may be prevented with an annual influenza vaccination.
Studies have evaluated if other flu vaccines were associated with GBS, with only one of the studies showing an association. Symptoms include weakness beginning in the legs and progressing upward, lost reflexes, and in severe cases breathing can be affected. One quadrivalent influenza shot (Afluria Quadrivalent) can be given either with a needle (for people aged 6 months and older) or with a jet injector (for people aged 18 through 64 years only). States. People who have a history of severe egg allergy (those who have had any symptom other than hives after exposure to egg) should be vaccinated in a medical setting, supervised by a health care provider who is able to recognize and manage severe allergic reactions. During years when the flu vaccine match is good, the benefits of flu vaccination will vary, depending on factors like the characteristics of the person being vaccinated (for example, their health and age), what influenza viruses are circulating that season and, potentially, which type of flu vaccine was used.
Health care providers inject the vaccine into muscles or skin, stimulating the immune system to produce an immune response (antibodies) to the influenza virus. Recombinant quadrivalent influenza shot (Flublok Quadrivalent), an egg-free vaccine, approved for people 18 years and older. The flu is highly infectious and is a potentially serious viral respiratory infection that can even be life threatening.
When these researchers reexamined data from the first study using correct methods, they found that flu vaccination did not increase risk for infection with other respiratory viruses, including seasonal coronaviruses. Flu vaccines cause antibodies to develop in the body about two weeks after vaccination. The nasal-spray flu vaccine (sometimes called LAIV for live attenuated influenza vaccine, brand name FluMist) was first licensed in 2003. Each year, a new vaccine must be prepared that will be effective against the types of influenza virus that are expected to circulate in the upcoming influenza season. It's offered every year on the NHS to help protect people at risk of flu and its complications.
The results from that initial study led researchers in Canada to look at their data to see if they could find similar results in their population.
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