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The Observatory Journal: Health experts have confirmed that common vaccine side effects, such as pain at the injection site, are a sign that the immune system is developing a response.
Side effects
According to “Sky News”. The UK newspaper “Daily Mail” cited the opinions of infectious disease experts regarding the side effects of three vaccines produced by “Johnson & Johnson”, “Moderna” and “Pfizer-Biontic”, which are pain or swelling in the body. injection site, headache, fatigue, fever, chills and muscle pain.
Dr Richard Kennedy, professor of medicine at the Mayo Clinic in Rochester, Minnesota, said that between 20 and 80 percent of those who receive the vaccine will experience these symptoms, which can last for a day or two.
Headache
For his part, said Dr Thad Stubbenbeck, president of the Lerner Research Institute at the Cleveland Clinic in Ohio, that headache is the most common side effect of the “Pfizer-Biontech” vaccine.
Nausea and vomiting
For rare side effects, such as nausea, vomiting, and swollen lymph nodes and armpits, Kennedy explained, less than 1 in 10 people will experience these effects.
Itching, swelling and tenderness
As for the itching, swelling and even anaphylaxis. Scientists say people are more likely to experience stronger reactions after the second dose of the vaccine because the immune system has been prepared to fight off the virus, so the response increases after getting the final dose.
“The Daily Mail” quoted Dr. Robert Murphy, an infectious disease specialist at Northwestern Medicine, Chicago, as saying that the vaccine recipient may suffer from flu-like symptoms, such as fever and body aches, in addition to difficulty sleeping. first night of vaccination.
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