Milker's Nodules Follow-up
- Author: Justin J Finch, MD, FAAD; Chief Editor: William D James, MD more...
Isolate clinically infected animals from contact with humans who have not had previous exposure. Animals have typical lesions of circinate or horseshoe-shaped crusted erosions around the moist surfaces of the mouth and the nose or papules and erosions around the teats. They may have alopecia of lesions on hair-bearing surfaces. Lesions can be recurrent or chronic in cows.
Various reports caution against the possibility of bacterial superinfection in milker's nodules, although the authors' literature search did not find any reported cases.
Reports exist of generalized exanthem, erythema multiforme, or bullous erythema multiforme following infection with milker's nodule. One case reported spontaneous resolution of exanthem at 1 week.
The prognosis is excellent in milker’s nodules, a self-limited disease that results in little or no scarring.
Lymphangitis, lymphadenitis, and fever, which may last from a few days to a few weeks, may occur in milker's nodules patients.
No reports exist describing milker's nodule infection during pregnancy; however, two reports exist of orf virus, a related Parapoxvirus, being contracted in the third trimester (33rd and 34th wk), resulting in maternal lesions but normal-term infants.
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