side effects The chances of any of these side effects occurring after vaccination differ according to the specific vaccine. COVID-19: Vaccine safety and side effects - Canada.ca There were reports of some serious side effects such as anaphylaxis (a sometimes life-threatening allergic reaction) and blood clots with … COVID-19 Vaccine Side Effects Thus surge of blood pressure within minutes of vaccination could be not due to vaccination. blood Side effects can be mild or severe, temporary or permanent. does The Pfizer COVID-19 vaccine might have led to less side effectsbecause the company chose a smaller dose of its vaccine. These are the most commonly reported side effects. Ask your child’s healthcare provider for advice on using a non-aspirin pain reliever and other steps you can take at home to comfort your child. Serious side effects of the Janssen/Johnson & Johnson COVID-19 vaccine can occur within three weeks of vaccination and require emergency care. AstraZeneca Covid vaccine: safety Does drinking alcohol affect your blood pressure? The most common post-vaccination side effects are fever, headache, muscle pain, nausea, tiredness, and pain at the injection site. The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. These side effects may affect their ability to do daily activities, but they should go away within a few days.