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of people receiving a COVID-19 vaccine for the first time experienced this side effect. Guillain-Barré syndrome (GBS). GBS is a rare side effect that can cause the immune system to attack healthy ...
The short-term side effects of the authorized COVID-19 vaccines are similar. The side effects typically start within a day or two of getting the vaccine and may include: pain, redness, or swelling ...
Healthy adults have the option of receiving any of the three COVID-19 vaccines. These are the: Pfizer mRNA vaccine. Moderna mRNA vaccine. Johnson & Johnson (J&J) adenoviral vector vaccine ...
On December 23, 2020, Health Canada approved the mRNA-1273 COVID-19 vaccine developed by Moderna. The first tranche of vaccines of a total 53,000 designated for Ontario by the end of 2020 arrived at Toronto Pearson International Airport on December 24. Over the Christmas and holiday season, many vaccination clinics were paused.
The 54% vaccine effectiveness is based on a study from September through earlier this month of 9,222 COVID tests in the Community Access to Testing SARS-CoV-2 pharmacy testing program. Both CVS ...
The CDC recommends an additional booster shot for certain people to amp up their immune system against potential COVID-19 variants. If you got the J&J Janssen vaccine as your first vaccine and ...
The Pfizer, Moderna, Novavax, and Johnson & Johnson vaccines are all highly effective in protecting you from the virus that causes COVID-19. The CDC says there’s a preference for the mRNA ...
Health Canada received a submission from Moderna on June 29, 2023 for yet another reformulated COVID-19 vaccine based on the Omicron XBB.1.5 subvariant of SARS-CoV-2. The updated version was tested in a small human trial of 101 participants who had previously received four doses of previous formulations of the Moderna COVID-19 vaccine.