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The epidemiology of contagious equine metritis (CEM) in England 1977--1978)

D G Powell, K Whitwell

    Journal of Reproduction and Fertility. Supplement
    |January 1, 1979
    PubMed

    Insights

    A 1978 Code of Practice for Contagious Equine Metritis (CEM) in England led to detecting asymptomatic carrier mares and preventing stallion transmission. Despite controls, two small CEM outbreaks occurred in 1978.

    Area of Science:

    • Veterinary Medicine
    • Animal Health
    • Epidemiology

    Background:

    • An outbreak of Contagious Equine Metritis (CEM) occurred in England in 1977.
    • CEM is a highly contagious bacterial disease affecting horses.

    Purpose of the Study:

    • To evaluate the effectiveness of the 1978 Code of Practice in controlling CEM.
    • To assess the impact of screening and hygiene measures on disease transmission.

    Main Methods:

    • Implementation of a Code of Practice in 1978.
    • Bacteriological screening of Thoroughbred mares and stallions.
    • Improved hygiene standards on stud farms.

    Main Results:

    • Detection of asymptomatic carrier mares.
    • Treated stallions that transmitted CEM in 1977 did not transmit the disease in 1978.
    • Two small CEM outbreaks were reported during the 1978 breeding season.

    Conclusions:

    • The Code of Practice was partially effective in controlling CEM transmission.
    • Screening and hygiene measures are crucial for managing CEM.
    • Ongoing vigilance is necessary to prevent further outbreaks.

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