Powell D G, Whitwell K
J Reprod Fertil Suppl. 1979(27):331-5.
Following an outbreak of CEM in England during 1977 a Code of Practice was introduced to control the disease in 1978. The Code recommended a bacteriological screening programme for Thoroughbred mares and stallions and improved standards of hygiene on the stud farm. As a result of the implementation of the Code a number of asymptomatic carrier mares was detected. Stallions which had transmitted CEM in 2977 and were treated did not transmit the disease during 1978. Two small outbreaks of CEM were reported during the 1978 breeding season.
1977年英国爆发马媾疫后，1978年出台了一项业务守则以控制该病。该守则建议对纯种母马和种马进行细菌学筛查计划，并提高种马场的卫生标准。由于该守则的实施，检测出了一些无症状的携带母马。1977年传播马媾疫并接受治疗的种马在1978年没有传播该病。在1978年繁殖季节报告了两起小规模的马媾疫疫情。
