Research ArticleOpen accessIn the abstractExogenous Re-infection by Multiple Exposures to Mycobacterium tuberculosis Contributes to Subsequent Development of Active TuberculosisDiane J. Ordway, Miguel Viveiros, Fernando A. Ventura et al.American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,967 accessesView PDFCite