Question: what is the difference between salmonella typhi and paratyphi?
Answer: enterica sub-species enterica serotype typhi) (186) and paratyphoid is caused by either Salmonella paratyphi A, B, or C. Serologically S. typhi is LPS antigen 09, 12, protein flagellar antigen Hd, and capsular polysaccharide antigen Vi positive. Salmonella paratyphi B is also known as S.