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The rare simultaneous occurrence of thrombocytopenia (low blood platelets) with blood clots after vaccination raised the original concern about this condition. [citation needed] In many cases where acute thrombosis and thrombocytopenia have been found together after COVID‑19 vaccination, an antibody against platelet factor 4 has been ...
The CDC recommends that everyone 6 months and older get vaccinated for COVID-19, adding that the known risks of COVID illness and its possibly severe complications “far outweigh the potential ...
Nature, 2024, Myocarditis associated with COVID-19 vaccination. MedrXiv, May 20, OpenSAFELY: Effectiveness of COVID-19 vaccination in children and adolescents. Thank you for supporting our journalism.
In March 2021, the European Medicines Agency (EMA) announced that out of the around 20 million people who had received the Oxford–AstraZeneca COVID-19 vaccine, general blood clotting rates were normal, but that it had identified seven cases of disseminated intravascular coagulation, and eighteen cases of cerebral venous sinus thrombosis. [35]
In those receiving heparin through an intravenous infusion, a complex of symptoms ("systemic reaction") may occur when the infusion is started. These include fever, chills, high blood pressure, a fast heart rate, shortness of breath, and chest pain. This happens in about a quarter of people with HIT.
This system is especially significant in the kidneys, where the glomerular filtration rate (the rate of blood filtration by the nephron) is particularly sensitive to changes in blood pressure. However, with the aid of the myogenic mechanism, the glomerular filtration rate remains very insensitive to changes in human blood pressure. [1]
A frequent fallacy consisted in concluding on the ineffectiveness (or low effectiveness) of vaccines after noticing the apparently high proportion of vaccinated patients among COVID-19-related hospitalisations and deaths, without taking into account the high proportion of vaccinated people among the general population, thus committing the base ...
If you have a fever with your cough that doesn’t get better with medication or comes back within a few hours of taking fever-reducing medication, you have shortness of breath, chest pain, body ...