Diseases, Conditions, Syndromes

Some COVID-19 mutations may dampen vaccine effectiveness

Scientists are reporting troubling signs that some recent mutations of the virus that causes COVID-19 may modestly curb the effectiveness of two current vaccines, although they stress that the shots still protect against ...

Diseases, Conditions, Syndromes

Pfizer vaccine likely works against UK variant

The Pfizer/BioNTech vaccine appears to be effective against the new more infectious coronavirus variant that was first detected in Britain and has since been found in dozens of countries, according to two preliminary studies ...

Vaccination

States report vaccine shortages and cancel appointments

The push to inoculate Americans against the coronavirus is hitting a roadblock: A number of states are reporting they are running out of vaccine, and tens of thousands of people who managed to get appointments for a first ...

Vaccination

Chile approves Chinese coronavirus vaccine

Chile on Wednesday became the latest country to give emergency approval to China's CoronaVac vaccine as it battles the coronavirus epidemic which has claimed more than 17,500 lives in the country to date.

Vaccination

Denmark slows vaccine rollout after Pfizer delivery delays

Denmark announced Wednesday that it was revising its targets for COVID-19 vaccinations down by 10 percent in the first quarter due the temporary reduction in deliveries of the Pfizer/BioNTech vaccine in Europe.

Vaccination

Russia files for Sputnik vaccine registration in EU

Russian authorities have applied for registration of the Sputnik V coronavirus vaccine in the European Union, the country's sovereign wealth fund financing the jab said Wednesday.

Vaccination

At 106, woman among earliest vaccine recipients in Brazil

Zélia de Carvalho Morley rolled up a sleeve and looked stoically to the side as a nurse slid in a COVID-19 shot. She was one of thousands in Brazil to get the shot on Wednesday, but one of very few old enough to recall an ...

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