Boosting with Poxviruses Enhances Mycobacterium bovis BCG Efficacy against Tuberculosis in Guinea Pigs
2005
Williams, A. | Goonetilleke, N. P. | McShane, H. | Clark, Simon O. | Hatch, Graham | Gilbert, S. C. | Hill, A. V. S.
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.
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