Contagious skin necrosis

Camels showed clinical signs of contagious skin necrosis (CSN), with or without trypanosomosis, were subjected to study. The following samples were collected; sterile bacteriological swabs from skin necrosis area, whole blood samples for hematological analysis and for diagnosis of trypanosomosis, and serum for measuring lipid peroxidation product (Malondialdehyde, MDA). The bacteriological examination of collected swabs from dermal lesion of CSN revealed that Staphylococcus aureus was the predominant bacterial isolate alone in 6 cases and coupled with other bacteria in the remained 4 cases, coupled with coagulase negative staphylococci 3 cases and coupled with Streptococcus agalactiae in one case. Trypanosoma evansi infection was identified using polymerase chain reaction in 5 camels that had CSN. Malondialdehyde showed significant increase in camels affected with CSN that associated with trypanosomosis. The current study revealed that Staphylococcus aureus was the predominant bacterial isolate, camels may be infected with both trypanosomosis and CSN, lipid peroxidation products increased in the blood of camels with CSN that associated with trypanosomosis, it is recommended to supply camels with antioxidants to overcome the deterioration of blood antioxidants.