| LEPTOSPIROSIS IN CATTLE- ZOONOSIS | |
| Description | Leptospirosis is a cause of abortion, systemic illness, and mastitis; signs range from mild to severe. Several serovars of LEPTOSPIRA can be involved. Abortions occur while titers are decreasing and are usually in the last trimester. In rare cases there is peracute hemolysis with seizures and sudden death. Has been associated with the birth of weak calves. Transmissible to humans. |
| Species | Bovine |
| Signs | Abortion or weak newborns, Agalactia, Anorexia, Bloody milk, Dullness, Dyspnea, Female infertility, Fever, Hematuria, Hemoglobinuria or myoglobinuria, Icterus, Increased respiratory rate, Mastitis, Pale, Petechiae or ecchymoses, Red or brown urine, Reluctant to move, Rumen hypomotility or atony, Seizures or syncope, Sudden death, Tachycardia, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Weight loss |
| References | Monahan AM et al. Host-Pathogen Interactions in the Kidney during Chronic Leptospirosis. Vet Pathol 2009;46:792-799 [Web Reference] Guerra MA. Leptospirosis. Journal of the American Veterinary Medical Association 2009;234:472-478 [Web Reference] Bomfim MRQ et al. Detection of pathogenic leptospires in urine from naturally infected cattle by nested PCR. The Veterinary Journal 2008;178:251-256 [Web Reference] Givens MD, Marley MSD. Infectious causes of embryonic and fetal mortality. Theriogenology 2008;70:270-285 [Web Reference] Cortese VS et al. Evaluation of two antimicrobial therapies in the treatment of LEPTOSPIRA BORGPETERSENII serovar HARDJO infection in experimentally infected cattle. Vet Therapeutics 2007;8:201-208 Cabell E. Bovine abortion: aetiology and investigations. In Pract 2007;29:455-463 [Web Reference] Anderson ML. Infectious causes of bovine abortion during mid- to late-gestation. Theriogenology 2007;68:474-486 [Web Reference] BonDurant RH. Selected diseases and conditions associated with bovine conceptus loss in the first trimester. Theriogenology 2007;68:461-473 [Web Reference] |