Yersinia pestis pFra shows biovar-specific differences and recent common ancestry with a Salmonella enterica serovar Typhi plasmid. (Journal of bacteriology, 2001)

(untitled) - Prentice, M; James, K; Parkhill, J; Baker, S; Stevens, K; Simmonds, M; Mungall, K; Churcher, C; Oyston, P; Titball, R; Wren, B; Wain, J; et al.