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Yale researchers have found clues as to why certain people experience adverse health effects after the COVID-19 vaccine, which they have dubbed “post-vaccination syndrome."
The study included 294 participants who presented with symptoms of thrombocytopenia and thrombosis after receipt of the first dose of the Oxford–AstraZeneca COVID‑19 vaccine, showing an independent association between baseline platelet count and the presence of intracranial hemorrhage. The study established that 85% of the participants ...
In Com-COV2, the first dose is the Oxford–AstraZeneca vaccine or the Pfizer vaccine, and the second dose is the Moderna vaccine, the Novavax vaccine, or a homologous vaccine equal to the first dose, with an interval of 56 or 84 days between doses. [333]
For instance, a study showed how COVID-19 may cause microvascular brain pathology and endothelial cell-death, disrupting the blood–brain barrier. [51] [52] Another study identified neuroinflammation and an activation of adaptive and innate immune cells in the brain stem of COVID-19 patients. [53]
Most people who received a third dose of Pfizer Inc's COVID-19 vaccine felt similar or fewer side effects than they did after receiving the second shot, according to an initial survey in Israel.
2+ previous Pfizer doses. 1 dose of new Pfizer vaccine. 1+ previous Moderna doses. 1 dose of new Moderna vaccine. Adults 65 and older, who may be at higher risk of severe COVID infection, were ...
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 ...
Story at a glance A new study published in the journal Science Advances offers one of the most comprehensive looks at menstrual changes post COVID-19 vaccine. Two researchers, Kathryn Clancy and ...