should not be confused with ecthyma, an ulcerative pyoderma usually caused by a Streptococcus bacterial infection at the site of minor trauma.
In 2009, due to lack creep feed as well as sufficient green fodder, lambs were born and showed signs of Orf/ Contagious Ecthyma
. In the farm out of 30 lambs borns, 8 lambs died within 2 days.
Orf (contagious ecthyma
) is an exanthematous infectious disease caused by a parapoxvirus that occurs primarily in sheep and goats but can be spread to humans through contact with an infected animal or formites.
(orf) virulence factors and vaccine failure.
(CE) is a contagious specific skin-disease of small ruminants, caused by a parapox virus of family poxviridae (Savory et al., 2000).
When examining skin lesions on llamas, viral diseases to consider as differential diagnoses include vesicular stomatitis, rabies, poxvirus (contagious ecthyma
and cowpox virus [CPXV]) (2), foot-and-mouth disease, bluetongue, and mucocutaneous fibropapillomas (3).
Amongst the dermatological disorders identified, tick infestation (29.47%) was highest followed by lice infestation (18.42%), allergic dermatitis (13.16%), scabies (11.05%), contagious ecthyma
(8.95%), goat pox (7.89%), impetigo (6.32%), demodicosis (3.16%), dermoid cyst (1.05%) and udder papillomatosis (0.53%) (Table 1).
Blackleg (1970, 1995) and the contagious ecthyma
(1999) were probably introduced into the country by live ruminants imported from Madagascar (9).