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Coronavirus

Russia's Sputnik V COVID-19 vaccine shown to be less effective against delta variant

Published: Updated:

Russia’s Sputnik V vaccine is around 90 percent effective against the Delta variant of coronavirus, the RIA news agency cited Denis Logunov, deputy director of the Gamaleya Institute that developed the vaccine, as saying on Tuesday.

Read the latest updates in our dedicated coronavirus section.

The shot was previously found by the researchers to be almost 92 percent effective against the original strain of coronavirus.

Logunov said the Delta variant efficacy figure was calculated based on information from digital medical records and on vaccination records.

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