1. Bisno, AL. Streptococcus pyogenes. In: Mandell, GA, Bennett, JE, Dolin, R eds. Mandell, Douglas and Bennett's Principles and Practice of Infectious Diseases, 4th edn.New York, Edinburgh, London: Churchill Livingstone, 1995, pp. 1786–1799.
2. Johnson, DR, et al. Characterization of group A streptococci (Streptococcus pyogenes): correlation of M-protein and emm-gene type with T-protein agglutination pattern and serum opacity factor. Journal of Medical Microbiology 2006; 55: 157–164.
3. Dublin, TD, et al. Milk-borne outbreaks due to serologically typed hemolytic streptococci. American Journal of Public Health 1943; 33: 157–166.
4. Evans, AC. Types of streptococci associated with bovine mastitis followed by outbreaks of human disease. Journal of Infectious Diseases 1946; 78: 18–24.
5. Levy, M, Johnson, CG, Kraa, E. Tonsillopharyngitis caused by foodborne group A streptococcus: a prison-based outbreak. Clinical Infectious Diseases 2003; 36: 175–182.
6. Katzenell, U, Shemer, J, Bar-Dayan, Y. Streptococcal contamination of food: an unusual cause of epidemic pharyngitis. Epidemiology and Infection 2001; 127: 179–184.
7. Lauritsen, JM, Bruus, M (eds). EpiData data entry, data management and basic statistical analysis system. Odense Denmark, EpiData Association, 2000–2006 (http://www.epidata.dk). Accessed 2 March 2007. 8. Stata Corporation. Stata Corporation, College Station, TX USA (http://www.stata.com). Accessed 2 March 2007.
9. Beall, B, Facklam, R, Thompson, T. Sequencing emm-specific PCR products for routine and accurate typing of group A streptococci. Journal of Clinical Microbiology 1996; 34: 953–958.
11. Jespersen, NB, Rasmussen, P, Steensberg, J. Foodborne streptococcus epidemic [in Danish]. Ugeskrift for læger 1997; 159: 5368–5371.
12. Farley, TA, et al. Direct inoculation of food as the cause of an outbreak of group A streptococcal pharyngitis. Journal of Infectious Diseases 1993; 167: 1132–1135.
13. Hoffmann, S. The throat carrier rate of group A and other beta hemolytic streptococci among patients in general practice. Acta Pathologica Microbiologica et Immunologica Scandinavica (Section B) 1985; 93: 347–351.
14. Gallo, G, et al. An outbreak of group A food-borne streptococcal pharyngitis. European Journal of Epidemiology 1992; 8: 292–297.
15. Claesson, BE, et al. A foodborne outbreak of group A streptococcal disease at a birthday party. Scandinavian Journal of Infectious Diseases 1992; 24: 577–586.
16. Niklasson, PM, Bank, G, Nyblom, R. Outbreak of foodborne streptococcus tonsillitis [in Swedish]. Epid aktuellt 1990; 8: 2–3.
17. Tsakris, A, et al. Outbreak of rare serotype of group A streptococcus pharyngitis in a boarding college. Lancet 1999; 353: 1585–1586.
18. Asteberg, I, et al. A food-borne streptococcal sore throat outbreak in a small community. Scandinavian Journal of Infectious Diseases 2006; 38: 988–994.