A Coronavirus Vaccine Could Kill Half A Million Sharks, Conservationists Warn

Grey reef sharks, seen in Fiji, are among the top species of sharks fished for their liver oil.

The use of an immune-system stimulant harvested from shark liver oil in the development of some coronavirus vaccines has animal conservationists pressing for alternatives.

(Image credit: Reinhard Dirscherl/ullstein bild via Getty Images)

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