The United Kingdom today became the first country to approve the AstraZeneca-Oxford COVID-19 vaccine for emergency use, and its vaccine advisory group also recommended spacing out doses of it and the Pfizer-BioNTech vaccine to allow greater numbers of high-risk people to be vaccinated.

The announcement comes on the 1-year anniversary of the first English language reports of an unexplained pneumonia outbreak in Wuhan, China, and as the UK battles a more transmissible variant of SARS-CoV-2 that was confirmed just a few weeks ago.

Vaccine approval came with strategy to expand reach

iStock, MarianVejcik

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