Tag Archives: Herd immunity

COVID-19 in India: an unfolding humanitarian crisis

Michael Head, University of Southampton There have been many predictions about how many people have had COVID-19 and whether or not this or that country has reached herd immunity. We have seen this before in Manaus, Brazil, and in India. The optimism is alas always misplaced and occasionally used irresponsibly. We have seen approaches to naturally acquired herd immunity proposed …

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Pfizer jab approved for children, but first other people need to be vaccinated

Dominic Wilkinson, University of Oxford; Jonathan Pugh, University of Oxford, and Julian Savulescu, University of Oxford Moderna and Pfizer have released data suggesting that their vaccines are well tolerated in adolescents and highly effective in preventing COVID-19. Canada, the US and the EU have already authorised the Pfizer vaccine in children as young as 12. And the UK has just …

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Herd immunity: can the UK get there?

Adam Kleczkowski, University of Strathclyde Now that Britain and the US are crossing the 50% threshold of their populations vaccinated with the first dose, are they reaching herd immunity and can things return to normal soon? Not yet, is the short answer. And focusing on a single number is not helpful. It might encourage behaviour that would lead to another …

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What coronavirus survey told us about getting people to take a vaccine

The search goes on. Shutterstock/Orpheus FX

The search goes on. Shutterstock/Orpheus FX Lynn Williams, University of Strathclyde Vaccination will be hugely important in controlling future waves of COVID-19. But for it to work, we will need high levels of public acceptance of a vaccine, if and when it eventually becomes available. In recent years, vaccination rates have fallen across the world, and public confidence in vaccines …

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¿Conviene hacerse el sueco con el coronavirus?

Shutterstock / OPOLJA

Shutterstock / OPOLJA Salvador Peiró, Fisabio La respuesta sueca a la COVID-19 ha sido mucho menos intensa que en cualquier otro país europeo, incluyendo sus vecinos nórdicos. Suecia no sólo eludió los confinamientos generalizados sino que mantuvo abierta la escuela primaria, continúa desaconsejando el uso de mascarillas (salvo situaciones específicas) y hasta hace poco mantenía sin aislar a los contactos …

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Current rates of vaccine hesitancy in the US could mean a long road to normalcy

Current rates of vaccine hesitancy could jeopardize America’s efforts to achieve herd immunity. Nordroden / Getty Images

Matt Motta is a political scientist at Oklahoma State University. He studies the social and political determinants of anti-science attitudes, and investigating their policy impact. In this Q&A he answers questions about the current levels of vaccine hesitancy in the US and how that might affect the country’s ability to achieve herd immunity after a COVID-19 vaccine becomes available.

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Herd immunity: why the figure is always a bit vague

Herd immunity

hobbit/Shutterstock Adam Kleczkowski, University of Strathclyde Nearly 100 years ago, two British researchers, William Topley and Graham Wilson, were experimenting with bacterial infections in mice. They noticed that individual survival depended on how many of the mice were vaccinated. So the role of the immunity of an individual needed to be distinguished from the immunity of the entire herd. Fast …

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