| arenal, a new leptospira serovar of serogroup javanica, isolated from a patient in costa rica. | leptospirosis is a worldwide distributed zoonotic disease caused by pathogenic spirochetes of the genus leptospira. the basic taxon of leptospira is the serovar. currently, nearly 300 serovars have been identified. leptospirosis is particularly prevalent in warm and humid tropical regions where conditions for transmission and survival of pathogenic leptospires in the environment are optimal. leptospirosis probably constitutes a serious veterinary and public health problem in central america but ... | 2008 | 18417425 |