Diseases, Conditions, Syndromes

As variant rises, vaccine plan targets 'movable middle'

Thrown off-stride to reach its COVID-19 vaccination goal, the Biden administration is sending A-list officials across the country, devising ads for niche markets and enlisting community organizers to persuade unvaccinated ...

Diseases, Conditions, Syndromes

WHO: Delta variant is 'most transmissible' identified so far

The head of the World Health Organization said the COVID-19 delta variant, first seen in India, is "the most transmissible of the variants identified so far," and warned it is now spreading in at least 85 countries.

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