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A 2024 CDC study found that the 2024 flu vaccine reduced the risk of hospitalization from the flu by 35% in the Southern Hemisphere. [107] The research, conducted across five countries—Argentina, Brazil, Chile, Paraguay, and Uruguay—showed the vaccine was less effective than the one used in the previous season.
The following is a list of WHO recommended strains for the Northern Hemisphere influenza season. Starting in the 2012–2013 season, the recommendation shifted to include the composition of a quadrivalent influenza vaccine (QIV) that contains both influenza B lineages, alongside a trivalent influenza vaccine (TIV) containing one influenza B lineage.
Unlike knock-knock jokes and riddles for kids, kids' trivia questions are meant to test knowledge—not elicit laughs. Though let’s be honest, some kids laugh at everything, so kids' trivia ...
The vaccine produces a greater immune response than standard vaccine. According to the CDC, [1] "a study published in the New England Journal of Medicine [25] [in August, 2014] indicated that the high-dose vaccine was 24.2% more effective in preventing flu in adults 65 years of age and older relative to a standard-dose vaccine." The CDC ...
Flu season is an annually recurring time period characterized by the prevalence of an outbreak of influenza (flu). The season occurs during the cold half of the year in each hemisphere . It takes approximately two days to show symptoms.
The flu shot contains either an inactivated virus (which means it’s no longer infectious) or a particle that’s designed to look like a flu virus to your immune system, according to the CDC.
At-home nasal flu vaccine, FluMist, could be approved for self-administration starting in 2024. ... adults ages 18 to 49 to give themselves the vaccine, or to give it to children as young as age 2 ...
In general, influenza vaccines are only effective if there is an antigenic match between vaccine strains and circulating strains. [ 10 ] [ 2 ] Most commercially available flu vaccines are manufactured by propagation of influenza viruses in embryonated chicken eggs, taking 6–8 months. [ 2 ]