Seroepidemiological Evidence that Shearing Wounds are Mainly Responsible for Corynebacterium pseudotuberculosis Infection in Sheep.

Molecular epidemiologic features of Corynebacterium pseudotuberculosis isolated from horses

“…[8][9][10] The mode of transmission is not certain; bacteria reside in soil and experimentally, can enter skin abrasions and induce caseous lymphadenitis in sheep. 11,12 Flies and other insects may act as mechanical vectors and could account for the seasonal peak in number of infections in late summer and fall and the greater incidence of infections in years following heavy winter rainfall, which favors insect breeding. 9 In 2002 and 2003, perceived epidemics of infection caused by C pseudotuberculosis that affected thousands of horses were reported in Colorado, Wyoming, Utah, and Kentucky; these states had historically low prevalence of the disease.…”

Ulcerative lymphangitis due to Corynebacterium pseudotuberculosis in Bulgarian Holstein dairy cows

“…Previously, it has been proposed that C pseudotuberculosis infection in sheep and goats begins with bacterial penetration through superficial skin wounds or mucous membranes, followed by extension to the regional lymph nodes, and perhaps further organ dissemination. 31 Such skin injuries can occur for example during shearing of sheep, 32 and it can be speculated that minor abrasions and cuts can similarly initiate the infection in cattle. Once an animal is infected, the spread of C pseudotuberculosis can continue through the movement of infected animals within the herd and from one barn to another.…”

“…Such skin injuries can occur for example during shearing of sheep,32 and it can be speculated that minor abrasions and cuts can similarly initiate the infection in cattle. Once an animal is infected, the spread of C pseudotuberculosis can continue through the movement of infected animals within the herd and from one barn to another.…”

Studies on Corynebacterium pseudotuberculosis, Staphylococcus aureus and Staphylococcus aureus subsp. anaerobius isolated from sheep skin abscesses in Beni Suef Governorate.

“…The prevalence of CLA increases with age and the incidence increases only in young sheep after shearing. Sheep are sheared under unhygienic conditions, which may be a contributing factor in increasing both the prevalence and the incidence of CLA (Serikawa et al,1993;Al-Rawashdeh and Qudah 2000;Paton et al, 2002). Bacteriological studies revealed that C. pseudotuberculosis was the pathogen which most frequently isolated, followed by Staphylococcus aureus (Tadayon et al, 1980;Unanian et al, 1985;Gezon et al, 1991;Moller, et al, 2000), and Staphylococcus aureus subsp.…”