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Covid vaccine efficacy target. After combining data from all flu seasons the researchers found that vaccine effectiveness against any type of flu virus was 51 for the inactivated flu shot vs. 26 for the nasal spray. For a couple of years it wasnt recommended however the nasal spray vaccine was reintroduced in 2018.
What flu viruses does the nasal spray vaccine protect against. The flu shot can come in a variety of forms that protect against three or four. In 2009 they found that the nasal spray worked better.
There are many vaccine options to choose from this season. When it comes to the flu vaccine the question for almost everyone shouldnt be if you should get it but how you should get it. But with the threat of a second wave of covid 19 occurring at the same time as flu season many wonder whether the nasal spray vaccine.
Learn more about the vaccine composition of the 2020 2021 flu season vaccines. Nasal flu vaccine is for use in adults up to 49 years old and children who are at least 2 years old. Nasal flu vaccine is a live virus vaccine.
11 of children who received a flu shot or a placebo which was a nasal spray that didnt contain the vaccine fevers were also reported in clinical trials of children ages 2 to 17 years. For adults doctors found that the nasal spray works just as well as the flu shot. There are two options.
Historically the nasal spray vaccine wasnt as effective as the flu shot schaffner says. Nasal spray vaccine the influenza vaccine can be delivered as either an injection or as a nasal spray. The flu shot uses an inactivated dead version of the flu to stimulate your immune system while the nasal spray vaccine uses an attenuated ie.
Studies show that both the flu shot and nasal spray work. All nasal spray influenza flu vaccines for the 2020 2021 season are quadrivalent meaning they will be made using four flu viruses. An influenza ah1n1 virus an influenza ah3n2 virus and two influenza b viruses.
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