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Health risks of Pfizer and Moderna vaccines assessed

Scientists from the United States have not found any health effects from the vaccination of Pfizer and Moderna

Vaccination with Pfizer and Moderna drugs does not have serious health consequences. This conclusion was reached by researchers from the United States, whose article was published in The Journal of the American Medical Association.

Scientists within the framework of the US Centers for Disease Control and Prevention's Vaccine Safety Datalink program analyzed data on the health of 12 million patients from mid-December 2020 to June 26, 2021. The analysis compared the condition of 6.2 million people within three weeks after the first dose and the health of 5.7 million within three to six weeks after the second.

Experts assessed the presence of 23 health consequences of concern to the medical community — symptoms of coronavirus, effects found during clinical trials of vaccines, and so on. Among them were diseases of the nervous system (encephalitis, myelitis, and Guillain-Barre syndrome), cardiovascular problems (acute myocardial infarction, stroke, and pulmonary embolism), Bell's palsy, appendicitis, and anaphylaxis.

Then, using statistical analysis, the researchers estimated whether the number of cases of a particular symptom reached a certain threshold — a “signal”. None of the consequences reached him. At the same time, the researchers noted an increase in myocarditis and pericarditis among young people after vaccination. Among the evacuated patients aged 12 to 39 years, there were 6.3 additional cases of myocarditis per million doses.

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