The standardized mortality ratio for cases infected domestically was 2.9 (95% CI: 1.9–4.0) within the first month following the illness (Ternhag et al, 2005)
Salmonella typhi causes typhoid fever. It causes symptoms of fever, severe headaches, nausea, and loss of appetite. Other characteristics that can arise are: diarrhea, enlargement of the spleen, and the possible enlargement of the spleen.
This bacterium causes shigellosis, with shigella sonnei. It causes diarrhea and dysentery in humans. It can also cause symptoms of fever and stomach cramps.