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Hopes fizzle that a TB vaccine also fends off COVID

The BCG injection failed to prevent COVID-19 in a large trial, contrary to preliminary evidence.
A baby receives a Bacillus Calmette-Guerin (BCG) vaccine for tuberculosis, Banda Aceh, Indonesia.

A baby in Indonesia receives the BCG vaccine, which is administered to some 130 million infants worldwide every year. Credit: Chaideer Mahyuddin/AFP/Getty

A widely used tuberculosis vaccine failed to prevent COVID-19 in health-care workers who were enrolled in a large trial conducted at the height of the pandemic1.

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Nature 617, 10 (2023)

doi: https://doi.org/10.1038/d41586-023-01426-x

References

  1. Pittet, L. F. et al. N. Engl. J. Med. 388, 1582–1596 (2023).

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