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Updated: Dec 24, 2025

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Contagious agalactia: costs and control revisited.

G R Loria, R Puleio, G Filioussis

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    |April 15, 2020
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    Summary

    Contagious agalactia (CA) causes significant, underestimated economic losses in small ruminant dairy farming. Improved control strategies and revised veterinary legislation are crucial for managing this disease effectively.

    Keywords:
    Contagious agalactiaEconomicsHusbandryLegislationMycoplasma agalactiae

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    Area of Science:

    • Veterinary Medicine
    • Animal Science
    • Agricultural Economics

    Background:

    • Contagious agalactia (CA) is a significant disease affecting small ruminant dairy production.
    • Economic impacts of CA, including mortality, reduced milk yield, and welfare issues, are not fully quantified.
    • Current control measures and their effectiveness vary across different regions.

    Purpose of the Study:

    • To estimate the economic costs of contagious agalactia in southern European small ruminant dairy industries.
    • To describe and evaluate current disease control strategies in selected European countries.
    • To provide recommendations for improved CA outbreak management and policy.

    Main Methods:

    • Financial impact assessment in Italian small- and large-scale farming systems.
    • Review of existing control strategies (chemotherapy, vaccination) in Europe.
    • Analysis of veterinary legislation and its influence on disease reporting and control.

    Main Results:

    • Economic losses due to CA are substantial and underestimated in southern Europe.
    • Veterinary legislation in some countries hinders accurate outbreak notification and timely control.
    • New EU legislation may reduce the focus and funding for CA research.

    Conclusions:

    • Contagious agalactia poses a high economic burden on the small ruminant sector.
    • Stricter veterinary regulations and potential downgrading of CA by EU legislation require attention.
    • Effective management necessitates updated recommendations for notification, diagnostics, treatment, and disinfection.