Tag Archives: Vaccine booster shots

How effective are vaccines against omicron? An epidemiologist answers 6 questions

Understanding how much protection a vaccine offers is not as simple as it sounds. Andriy Onufriyenko/Moment via Getty Images Melissa Hawkins, American University The pandemic has brought many tricky terms and ideas from epidemiology into everyone’s lives. Two particularly complicated concepts are vaccine efficacy and effectiveness. These are not the same thing. And as time goes on and new variants …

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Q+A: COVID vaccine boosters – who will receive them and why are they being given?

ShotPrime Studio/Shutterstock Sarah Pitt, University of Brighton After consulting its vaccine advisers, the UK government is launching its much-discussed COVID-19 vaccine booster programme. From the week beginning September 20 2021, a third dose will be offered to all people who were prioritised in the first wave of the UK’s vaccine rollout. This includes all residents and staff of care homes, …

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COVID-19 vaccine boosters: is a third dose really needed?

Sheena Cruickshank, University of Manchester The UK is enjoying real success with its COVID-19 vaccine coverage. Around 85% of adults (44.8 million people) have received one vaccine dose and 63% (33 million people) both doses, with around 160,000 doses a day still being administered. Vaccination with two doses helps prevent infection, and in those that do still get infected, lessens …

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