Most of the participants were White adults, with a mean age of 65. The researchers analyzed data on 928 adults who self-reported what symptoms they experienced after receiving Pfizer/BioNTech or Moderna Covid-19 vaccinations, as well as submitted a dried blood spot to test for antibodies. Uncommon side effects As studies continue, some less common side effects have been identified. To access our most recent articles, please visit the NEJM Coronavirus. The adverse reaction statistics for the different covid-19 vaccines are not directly comparable because they have not been used in the covid vaccination. Most of the side effects occurred one or two days after vaccination. Covid-19 Vaccine Resource Center This collection of resources on Covid-19 vaccines was last updated on March 29, 2023. “This is more to reassure people who have had a reaction that that’s their immune system responding, actually in a rather good way, to the vaccine, even though it has caused them some discomfort,” Schaffner said. With Johnson & Johnson’s vaccine, commonly reported side effects were arm soreness, headache, muscle aches and nausea. William Schaffner, a professor in the Division of Infectious Diseases at Vanderbilt University Medical Center and medical director of the National Foundation for Infectious Diseases, who was not involved in the new study. The vaccine didn’t work.’ I don’t want that conclusion to be out there,” said Dr. “I don’t want a patient to tell me that, ‘Golly, I didn’t get any reaction, my arm wasn’t sore, I didn’t have fever. There's no need to worry about any of the flu-like symptoms. INTERACTIVE Developing vaccines quickly and safely An interactive tool from our vaccine experts that explores how a vaccine is developed and the differences between a typical timeline and an accelerated timeline. Swollen Lymph Nodes After COVID-19 Vaccines May Cause Mammogram Confusion. Some less common side effects include nausea and swollen lymph nodes (especially in the armpit). The most common side effects after COVID-19 vaccination are mild and typically last 1-3 days, and include tiredness, redness or pain at the injection site. Nearly all study participants exhibited a positive antibody response after completing a two-dose Pfizer/BioNTech or Moderna vaccine series. The most common were fatigue, headache, and new or worsened muscle pain. Scott Olson/Getty Imagesįirst on CNN: More Americans are getting their booster shots, but 'it's not enough,' Biden administration warnsīut even though some people may have small, localized side effects or no symptoms at all, the vaccine still elicits robust immune responses in them too. The recently authorized booster vaccine protects against the original SARS-CoV-2 virus and the more recent omicron variants, BA.4 and BA.5. The chances of any of these side effects occurring after vaccination differ according to the specific vaccine. A pharmacist prepares to administer COVID-19 vaccine booster shots during an event hosted by the Chicago Department of Public Health at the Southwest Senior Center on Septemin Chicago, Illinois. Typical side effects include pain at the injection site, fever, fatigue, headache, muscle pain, chills and diarrhoea.
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