1. Hook, W. Salmonella species (including typhoid fever). In:Mandell, G. L., Douglas, R. G. J., Bennett, J. E. (eds.): Principles and practice of infectious diseases. Churchill Livingstone, Inc., New York 1990, pp. 1700–1716.
2. Trujillo, Z., Quiroz, C., Gutierrez, M. A., Arias, J., Renteria, M. Fluoroquinolones in the treatment of typhoid fever and the carrier state. Eur. J. Clin. Microbiol. Infect. Dis. 10 (1991) 334–341.
3. Brouqui, P., Rault, D.: Fièvre typhoide — Editions Techniques — Encycl. Méd. Chir. — Maladies Infectieuses, F.r. 8-019-A-10, 1re ed., Paris 1992, p. 4.
4. Butler, T., Linh, N. N., Arnold, K., Pollack, M. Chloramphenicol-resistant typhoid fever in Vietnam associated with R factor. Lancet ii (1973) 983–985.
5. OMS Pharmacorésistance transférable chez les Salmonelles en Amérique Centrale et en Amérique du Sud. Relève Epidem. Hebdomadaire 8 (1974) 65–69.