Chapter 18 : Group C and Group G Streptococcal Infections: Epidemiologic and Clinical Aspects

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Streptococci possessing Lancefield group C and G cell wall carbohydrates are heterogeneous in regard to biochemical reactions, hemolytic characteristics, predilection for host species, and clinical illnesses produced in humans and animals. These organisms are found as commensals in the throat, skin, and occasionally the female genitourinary tract, and their epidemiologic patterns and clinical manifestations reflect this distribution. This chapter focuses on the more common infections caused by subsp. , as well as on the few reported human cases caused by subsp. , subsp. , subsp. , and . Strains of these streptococci have been associated with infections of many body sites. Treatment with penicillin is adequate under most circumstances.

Citation: Baracco G, Bisno A. 2006. Group C and Group G Streptococcal Infections: Epidemiologic and Clinical Aspects, p 222-229. In Fischetti V, Novick R, Ferretti J, Portnoy D, Rood J (ed), Gram-Positive Pathogens, Second Edition. ASM Press, Washington, DC. doi: 10.1128/9781555816513.ch18

Key Concept Ranking

Cardiovascular Diseases
Respiratory Diseases
Toxic Shock Syndrome
Skin Infections
Streptococcus dysgalactiae
Streptococcus constellatus
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Generic image for table

Human and animal streptococci expressing Lancefield C and G cell-wall antigens

Reprinted from reference with permission of Elsevier.

Isolates with the group A antigen have also been described.

Citation: Baracco G, Bisno A. 2006. Group C and Group G Streptococcal Infections: Epidemiologic and Clinical Aspects, p 222-229. In Fischetti V, Novick R, Ferretti J, Portnoy D, Rood J (ed), Gram-Positive Pathogens, Second Edition. ASM Press, Washington, DC. doi: 10.1128/9781555816513.ch18

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