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Genes associated with narcolepsy modulate the expression of the specific T cell receptor recognition involved in reaction to these antigens, suggesting H1N1 infection is a cause of narcolepsy in genetically susceptible individuals. T-cells stimulated by Pandemrix were cross-reactive by molecular mimicry with the same part of the hypocretin peptide.
In some people, a flu vaccine may cause serious side effects, including an allergic reaction, but this is rare. Furthermore, the common side effects and risks are mild and temporary when compared to the risks and severe health effects of the annual influenza epidemic.
In November 2013, the U.S. Food and Drug Administration (FDA) approved an experimental H5N1 bird flu vaccine to be held in stockpiles. [22] [23] In a clinical trial including 3,400 adults, 91% of people age 18–64 and 74% of people age 65 or older formed an immune response sufficient to provide protection. Reported adverse effects were ...
How to treat flu show side effects Again, most people who have flu shot side effects only have a sore arm, if that. But some people will have things like muscle aches, headache, or flu-like symptoms.
Doctors explain flu shot side effects, from arm soreness to fatigue. Plus, how to feel better if you feel sick post vaccine and severe reactions to be aware of.
According to the U.S. Centers for Disease Control and Prevention, while "any vaccine can cause side effects", [11] most side effects are minor, primarily including sore arms or a mild fever. [11] Unlike most medical interventions vaccines are given to healthy people, where the risk of side effects is not as easily outweighed by the benefit of ...
Another influenza vaccine was put into market in 1942. It is a bivalent vaccine that offers protection to influenza A and B viruses. [27] [28] Furthermore, the cell culture technology was developed which allows virus growing outside the body for the first time. The culturing of virus cell from the respiratory secretion also allows accurate ...
CDC estimates show that about 47% of American adults got the flu vaccine during the 2023-2024 season, which is not ideal. The hope with the home flu vaccine is that more people will actually get ...