假牛痘 Pseudo-Cowpox (Milkers’ Nodule)
Prepared by: Dr. Terry Hunt
Translated by Dr. Fu Xiaoping
病因/发病机理 Cause & Pathogenesis
副泡状病毒 Parapox virus 乳区、乳头的轻度感染 Mild infection of udder & teats 牛群传播慢 Slowly spreads throughout herd 发生于下一胎次 Will reoccur in subsequent lactations 通过设备、手、清洗液、昆虫传播Spread from infected cows by equipment, hands, washing & insects
公众卫生：造成挤奶员手或指上红色/紫色发痒的结节
Public Health: Causes mild itchy purple/red nodules on hands and fingers of milker
危险因素 Risk Factors
仅仅新产牛最易感 Just freshened cows are most susceptible临床症状 Clinical Findings
乳头/乳房上红小色丘疹，逐渐发展为水疱，最后结痂Small red papules on teats and udder progressing to vesicles then scabs
马蹄形或圆环形痂 Horseshoe or circular ring of scabs 一般3周内治愈，但可持续数月Usually heal in 3 weeks but may persist for months诊断 Diagnosis
特征性马蹄形或圆环形痂 Characteristic horseshoe or circular ring of scabs鉴别诊断 Differential Diagnosis
牛创伤性乳头炎 Bovine ulcerative mammillitis 疣 Warts 外伤性损伤 Traumatic injury 牛痘—少见 Cowpox -rare治疗 Treatment
挤奶前涂药膏 Ointment before milking 碘附浸泡奶头 Iodophors teat dip预后情况 Prognosis
良好，乳腺炎发病率增加 Good although increased incidence of mastitis预防 Prevention & Control
卫生 Hygiene 隔离发病牛 Segregate infected cows本文来自作者[盼巧]投稿，不代表秒搜号立场，如若转载，请注明出处：http://www.ms80.net/ms/11605.html
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