Do COVID boosters cause more or fewer side effects? How quickly does protection wane? Your questions answered
Booster jab side effects: Pfizer and Moderna booster side effects
Pfizer: Anaphalylaxis may be a 'rare' occurrence after third shot
EXPERT REACTION: Getting Pfizer after AstraZeneca may result in better immune protection (preprint)
Pfizer: Anaphalylaxis may be a 'rare' occurrence after third shot
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This is why older adults are at the top of the list of people who should get a booster.
This will inform staff if you are safe to take the vaccine.
Participants self-reported on their symptoms in the days following their vaccine doses, and the majority of reported symptoms occurred in the 48 hours after receiving a shot.
Called an adenoviral vector, it carries the DNA of the coronavirus into human cells.
The study looked at more than 800 adults aged 50 and over who had received mixed vaccine doses at a four-week interval.