Keddy KH, Dwarika S, Crowther P, Perovic O, Wadula J, Hoosen A, Sooka A, Crewe-Brown HH, Smith AM (2009) Genotypic and demographic characterization of invasive isolates of Salmonella Typhimurium in HIV co-infected patients in South Africa. J Infect Dev Ctries 3:585–592. doi: 10.3855/jidc.549