Streptococ'cus

[G. streptos, curved, 4- kokkos, berry.] A genus of CoccacetB in which the individuals are arranged in curved lines resembling a string of beads, division of the cells occurring in one plane only. S. ac'idl lac'tic i, S. lebinis. S. anglno's us, 5. pyogenes. S. aphthic'ola, a species thought to be causative of foot-and mouth disease; cf. S. in vol utus. S. con glomera'- tus, a variety which forms flocculent colonies in bouillon; it has been found in the throat secretions in scarlatina. S. cunic'uli, Bacillus necrophorus. S. endocardit'icus, a species, believed to be pathogenic, found in the lesions of ulcerative endocarditis. S. diffu'suB, a variety which, when cultivated in bouillon, produces a general clouding of the fluid. S. erysipel'at is, S. erysipel'atos, Fehleisen's s., the cause of erysipelas, generally regarded as identical with 5. pyogenes. S. faeca'lis, a short-chained s. occurring in great numbers in the intestine; it is found in chronic forms of malignant endocarditis, in chronic cystitis, and in certain terminal infections. S. farcin'ica, Actinomyces farcinica. S. htemolyticus, a species causing destruction of red blood cells. S. involu'tus, a form said to be regularly present in the vesicles of foot and-mouth disease; cf. 5. aphikicola. S. lac'tic us, 5. lebinis. S. lanceola'tus, Diplococcus pneumonia. S. leb'in is, S. acid i laclici. Bad. guniherii, a species producing lactic acid and causing the coagulation of milk, said to be the bacterium of Bulgarian sour milk. S. long us, 5. pyogenes. S. lues, a. form occurring in the pus of chancroid. S. morbillo's us, a species which has been found in the nasal discharge in measles. S. mu'ris ratt'i, an organism found in certain cases of rat-bite fever. S. pyog'enes [G. pyon, pus, gennao. I produce.] a pus-forming organism pathogenic -Ifor man and the lower animals. S. saliva'rius, a short chained streptococcus occurring in the saliva and also throughout the alimentary canal; it is found in chronic forms of malignant endocarditis and not infrequently in terminal infections. S. varicell'se, a species which has been found in the vesicles in chickenpox; probably not pathogenic. S. var i'olse, a species found in the vesicles of smallpox and cowpox; probably not pathogenic, but po ibly symbiotic with the causative organism of the disease. S. vir'idans, a form which grows in green colonies, is not hemolytic, and produces neither gas nor pus; it is a frequent cause of neuritis and non-suppurative arthritis, the focus of infection often being in the teeth or tonsils. S. wies'neri, an organism having a special attraction toward gray nervous substance, suggested as the cause of encephalitis lethargic a.