Physiological differentiation of viridans streptococci.

摘要: Twelve hundred and twenty-seven clinical isolates eighty stock strains of viridans streptococci were tested for serological physiological characteristics. Because the reactions these varied, a differentiation scheme could not be based on reactions. For same reason, there no correlation characteristics with Nearly 97% speciated by differences in Ten different species recognized. The speciation was stable enzymatic rather than results tolerance tests. study included air-tolerant anaerobic streptococcal as well normally found humans. nomenclature author are related to those other investigators. Differences distribution isolated from sources human infections also noted. A key is proposed.