Science

Covid-19 vaccines: Everything you need to know about the leading shots

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A healthcare worker prepares a Covid-19 vaccine dose at the Central University vaccination site in Quito, Ecuador

Johis Alarcon/Bloomberg via Getty Images

More than half a year into the mission to vaccinate the world against covid-19, we are getting a picture of how well each vaccine is working. We round-up what the latest research says on efficacy at preventing symptoms, hospitalisation, and death, as well as side effects, plus the latest thinking on coronavirus variants and booster shots, for all the leading vaccines: Oxford/AstraZeneca, Pfizer/BioNTech, Moderna, Johnson & Johnson, Covaxin, Sputnik V, Sinovac, Sinopharm, and CanSino. …

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