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In the original clinical trials for Pfizer-BioNTech's COVID-19 vaccine, for example, less than half of study participants reported side effects, but the shot worked well for the vast majority of ...
In a situation with herd immunity to the target disease, the non-specific effects can be more important for overall health than the specific vaccine effects. [3] The non-specific effects should not be confused with the side effects of vaccines (such as local reactions at the site of vaccination or general reactions such as fever, head ache or ...
Potential side effects of the 2023 vaccine: ... so this eliminates the concern of any long-term side effects. “Most side effects last 24–48 hours,” says Dr. O’Donnell. “Arm soreness can ...
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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 ...
At the same briefing Dr. Samina Strauss of PRAC confirmed "our conclusion is that these clotting disorders are very rare side effects of the vaccine". [ 44 ] The UK Medicines and Healthcare products Regulatory Agency (MHRA) held a news conference on 7 April 2021, and while there is no proof that the AZD1222 vaccination caused the rare blood ...
Rare instances of vaccine side effects must not be used to “undermine the vital public health role that vaccination plays in keeping people safe from disease”, the UK Covid-19 Inquiry has heard.
An international panel of scientists affiliated with the FDA, WHO, and several universities and healthcare institutions, concluded that there was insufficient data to determine the long-term protective benefits of a booster dose (only short-term protective effects were observed), and recommended instead that existing vaccine stock would save ...