The Epidemiological Characteristics of 131 Strains of Legionella Pneumophila

Legionella bacteria were isolated from 887 central air conditioning cooling tower water, with confirmed by polymerase chain reaction -direct sequencing, from the year 2008 to 2015, Fujian province, China. The positive rate was 17.77% (131/887) with the highest detection rate in August. Legionella pneumonia (LP) serotype LP1, 5, 6, 7, 8, and 13 were co-existence with other Legionella species and LP1 was the priority to all the isolate strains with 64.89% (85/131). There have 26 different Pulsed Field Gel Electrophoresis (PFGE) type and 50% with magA+rtxA+lvh+ model. It showed Legionella isolated strains existed genetic diversity with strong pathogenicity and good adaptability to the environment.