Synonym for Streptococcus ... <bacteria, organism> A genus of bacteria that are gram-positive cocci, often occurring in chains of varying length. Some pathogenic species produce exotoxins. In man, streptococcal species are responsible for numerous infections such as scarlet fever, tonsillitis, erysipelas (skin infection), endocarditis, rheuma... Found on http://www.encyclo.co.uk/local/20973