Why should people get vaccinated against the flu?
Influenza is a serious disease that can lead to hospitalization and sometimes even death. Every flu season is different, and influenza infection can affect people differently, but millions of people get the flu every year, hundreds of thousands of people are hospitalized and thousands or tens of thousands of people die from flu-related causes every year. Even healthy people can get very sick from the flu and spread it to others. During flu season, flu viruses circulate at higher levels - can begin as early as October and last as late as May.) An annual seasonal flu vaccine is the best way to reduce your risk of getting sick with seasonal flu and spreading it to others. When more people get vaccinated against the flu, less flu can spread through that community.
How do flu vaccines work?
Flu vaccines cause antibodies to develop in the body about two weeks after vaccination. These antibodies provide protection against infection with the viruses that are in the vaccine.
The seasonal flu vaccine protects against the influenza viruses that research indicates will be most common during the upcoming season. Traditional flu vaccines (called ātrivalentā vaccines) are made to protect against three flu viruses; an influenza A (H1N1) virus, an influenza A (H3N2) virus, and an influenza B virus. There are also flu vaccines made to protect against four flu viruses (called āquadrivalentā vaccines). These vaccines protect against the same viruses as the trivalent vaccine and an additional B virus. This years is a Quadrivalent !
Who should get vaccinated this season?
Everyone 6 months of age and older should get a flu vaccine every season.( Can get more info at Immunize Canada or CDC website especially for recommendations on those who shouldnāt take the flu shot ie people with life threatening allergies to the flu vaccine, etc).
Why do I need a flu vaccine every year?
A flu vaccine is needed every season for two reasons. First, the bodyās immune response from vaccination declines over time, so an annual vaccine is needed for optimal protection. Second, because flu viruses are constantly changing, the formulation of the flu vaccine is reviewed each year and sometimes updated to keep up with changing flu viruses. For the best protection, everyone 6 months and older should get vaccinated annually.
Does flu vaccine work right away?
No. It takes about two weeks after vaccination for antibodies to develop in the body and provide protection against influenza virus infection. Thatās why itās better to get vaccinated early in the fall, before the flu season really gets under way.
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