Diseases, Conditions, Syndromes

WHO: High vaccination rates can help reduce risk of variants

A top World Health Organization official estimated Monday that COVID-19 vaccination coverage of at least 80% is needed to significantly lower the risk that "imported" coronavirus cases like those linked to new variants could ...

Vaccination

UN urges more vaccines for Africa, with only 2 percent now

The U.N. Security Council called for accelerated availability of coronavirus vaccines for Africa on Wednesday, expressing concern that the continent has received only about 2% of all doses administered globally.

Vaccination

Europe pause of AstraZeneca sends ripple of doubt elsewhere

The suspension of the AstraZeneca vaccine in several European countries over the past week could fuel skepticism about the shot far beyond their shores, potentially threatening the rollout of a vaccine that is key to the ...

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