We’ve recorded a quarter of a million COVID boosters and third primary doses through the ZOE COVID Study to better understand their safety and effectiveness. Here’s what we found. 

Are COVID booster shots safe?

Millions of people around the world have now received booster vaccines. Here’s what we know so far about the after effects of booster jabs.

COVID-19 Booster Jabs: What Are the After Effects? 

Booster Vaccine Side Effects

The ZOE COVID Study is the world’s largest ongoing study of COVID-19 with over 4.5 million contributors globally. The study uncovers scientific insights into symptoms, vaccines, immunity, new variants, and more. In the UK, the ZOE COVID Study predicts incidence of new cases every day.

Vaccines and Immunity

Are COVID booster shots safe?

COVID-19 Booster Jabs: What Are the After Effects?

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