Low-cost COVID-19 vaccine could improve herd immunity around the world

A low-cost, protein-based COVID-19 vaccine tested in rhesus monkeys by Stanford Medicine researchers and colleagues offered immunity against known variants for at least one year. Researchers hope the vaccine, which can remain unrefrigerated for up to two weeks and may be especially beneficial for infants, will help alleviate the need for boosters while improving herd immunity around the world.

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