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Tuberculosis is rising in the developing world due to poor health care, human immunodeficiency virus type 1 infection, and the low protective efficacy of the Mycobacterium bovis BCG vaccine. A new vaccination strategy that could protect adults in the developing world from tuberculosis could have a huge impact on public health. We show that BCG boosted by poxviruses expressing antigen 85A induced unprecedented 100% protection of guinea pigs from high-dose aerosol challenge with Mycobacterium tuberculosis, suggesting a strategy for enhancing and prolonging the efficacy of BCG.

Original publication




Journal article


Infect Immun

Publication Date





3814 - 3816


Animals, Antigens, Bacterial, BCG Vaccine, Guinea Pigs, Poxviridae, Tuberculosis, Vaccines, Synthetic