Serological study on leptospiral infection in camels (Camelus dromedarius): A provincial study

Leptospirosis as a common zoonotic diseases has a worldwide distribution. To Investigate of seroprevalence leptospiral infection in slaughtered camels (Camelus dromedarius) province of Yazd، Iran. Blood samples were collected from 128 camels. Sera were initially screened at serum dilution of 1:100 against six live antigens of (Leptospira interrogans serovars pomona، canicola، hardjo، ballum، icterohaemorrhagiae، grippotyphosa) using microscopic agglutination test. The values ||“| 50% in a dilution l: 100 were considered as positive ones. Sera with positive values were titrated against reacting antigens in serial dilutions from l: 100 to 1:400. Antibodies against one or more serovars were shown in 30 (32. 4%) sera at dilution |“|1:100. Among the positive sera، pomona (57. 9%) canicola (23. 7%)، hardjo (10. 5%)، grippotyphosa (5. 3%) and icterohaemorrhagiae (2. 6%) were the most frequent serovars،respectively. Furthermore antibodies against more than one serovar were found in 8 (26. 6%) of positive sera. It seems that leptospiral with various serovars could be considered as a prevalent infection in camels of the central part of Iran.