Russia's Sputnik V vaccine less effective against Delta variant -TASS

FILE PHOTO: A medical specialist holds a vial of Sputnik V vaccine against the coronavirus in a department store in Moscow, Russia, January 18, 2021 REUTERS/Shamil Zhumatov

MOSCOW (Reuters) – Russia’s Sputnik V vaccine against COVID-19 has been shown to be less effective against the highly contagious Delta variant, TASS news agency reported on Tuesday, citing the vaccine’s developers.

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