Classification ● two species: ●L, Interrogans causes human or anima diseases callled leptospirosis According to the antigenic differences of LPs and superficial glycoproteins, L, interrogans can be divided into at least 24 serogroups and 200 serotypes oL biflexa Saprophytic, usually exists in water in nature
16 • two species: • L. interrogans • causes human or animal diseases called leptospirosis • According to the antigenic differences of LPS and superficial glycoproteins, L. interrogans can be divided into at least 24 serogroups and 200 serotypes • L. biflaxa • Saprophytic, usually exists in water in nature. Classification
Culture Korthof medium with 10%/ rabbit serum The optimal incubating temperature is about 28C L, interrogans grows slowly Sensitive to heating and various chemical agents Can survive several months in wet soil and water OL interrogans has two chromosomes(one is large and the other is small)
17 Culture • Korthof medium with 10% rabbit serum • The optimal incubating temperature is about 28℃ • L. interrogans grows slowly • Sensitive to heating and various chemical agents • Can survive several months in wet soil and water ◇L. interrogans has two chromosomes (one is large and the other is small)