Primarily human pathogenic bacteria is/are: (A) Salmonella typhi, (B) S. paratyphi A, (C) S. paratyphi B, (D) All of the above
Answer is D. S. typhi & S. paratyphi A, B and C : Man is the only natural host. Transmission ingestion of food/ water contaminated by the feces of either a carrier or a case of enteric fever. Animal commensals: S. typhimurium S. enteritidis S. newpo S. dublin S.choleraesuis