The swift development of effective vaccines against the new coronavirus was an unprecedented scientific achievement. But production challenges, vaccine nationalism, and new virus strains have all presented hurdles.
The coronavirus is on the cusp of having killed 5 million people since it first emerged in late 2019 in Wuhan, China, according to data compiled by Johns Hopkins University.
The coronavirus is on the cusp of having killed at least 5 million people since it first emerged in Wuhan, China, in late 2019, according to data compiled
Nearly a quarter billion cases of the coronavirus have been reported. Despite the rollout of vaccines, global health experts warn that the pandemic is set to continue.
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