Johnson & Johnson vaccine, side effects in circular dose booster

Those who have received the single-dose Johnson & Johnson anticovid vaccine, as established by Aifa, will receive a booster dose with Pfizer (30 micrograms) or Moderna (50 micrograms) vaccine at least 6 months after the first administration. The circular issued by the AIFA also proposes the undesirable effects associated with the Johnson & Johnson vaccine. “Blood clots have been reported very rarely in combination with low platelet levels (thrombotic syndrome associated with thrombocytopenia)”, reads the document, which urges the request for “medical assistance if, within 3 weeks of vaccination” one of the following symptoms: – severe or persistent headaches, blurred vision, changes in mental status or seizures (convulsions); – wheezing, chest pain, leg swelling, leg pain or abdominal pain persistent; – unusual bruises on the skin or very small round spots located somewhere other than the vaccination site. “Seek urgent medical attention if you have symptoms of a severe allergic reaction”, still reads in relation to other symptoms: – feeling faint or lightheaded ; – changes in heartbeat; – wheezing; – wheezing; – swelling of the lips, face or throat; – hives or rash; – nausea or vomiting; stomach pain Very common side effects are defined (may affect more than 1 in 10 people): headache; nausea; muscle aches; pain where the injection is given; feeling extremely tired. Redness where the injection is given, swelling where the injection is given, chills, joint pain, fever and cough are common (may affect up to 1 in 10 people). frequent (may affect up to 1 in 100 people) rash, muscle weakness, pain in arms or legs, feeling of weakness, generally feeling unwell, sneezing, sore throat, back pain, tremor, excessive sweating, unusual sensation on the skin, such as tingling or pricking sensation (paraesthesia), diarrhea and dizziness These are rare side effects (may affect up to 1 in 1,000 people) allergic reaction, hives, swollen lymph nodes (lymphodenopathy), reduced sensation, especially on the skin (hypoesthesia ), persistent ringing in the ears (tinnitus), vomiting, blood clots in the veins (venous thromboembolism, VTE) Finally, very rare side effects (may affect up to 1 in 10,000 people): blood clots often in unusual sites (eg. brain, intestine, liver, spleen) associated with low blood platelet levels; severe inflammation of the nerves which can cause paralysis and difficulty in breathing (Guillain-Barré syndrome (GBS)). Side effects with unknown frequency (frequency cannot be estimated from the available data) are defined as severe allergic reaction, capillary leak syndrome (a condition that causes fluid to leak from small blood vessels) and low platelet levels (immune thrombocytopenia), which may be associated with bleeding.