ArticleVeterinary world2025
Foot-and-mouth disease in Armenia (1958-2003): Historical epidemiology, serotype dynamics, and evolving vaccination strategies.
Article in Veterinary world, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background and Aim: Foot-and-mouth disease (FMD) is a highly contagious transboundary animal disease affecting cloven-hoofed livestock, with significant economic and trade implications. Armenia lies within the West Eurasia and Middle East epidemiological pool, where serotypes O, A, Asia-1, and occasionally SAT-2 circulate. Despite decades of control efforts, the historical epidemiology of FMD in Armenia has not been comprehensively documented. This study aimed to conduct a 65-year retrospective analysis of FMD in Armenia to characterize serotype distribution, outbreak patterns, vaccination strategies, and diagnostic advancements, and to identify priorities for progression in the progressive control pathway (PCP-FMD). Materials and Methods: Data from 1958 to 2023 were compiled from the Union of Soviet Socialist Republics (USSR) agricultural archives, national veterinary records, World Organization for Animal Health/World Reference Laboratory for FMD reports, and peer-reviewed literature. Serotype identification, outbreak frequency, and species involvement were analyzed using descriptive statistics, heatmaps, and geographic information system (GIS) mapping. Diagnostic evolution from complement fixation testing to enzyme-linked immunosorbent assay, reverse transcription-polymerase chain reaction, and viral protein 1 (VP1) sequencing was documented. Vaccination protocols were traced from early monovalent campaigns to current polyvalent strategies. Results: Between 1958 and 2023, Armenia recorded over 1 million FMD cases, with peaks in 1966 (591,820 cases) and 1973 (471,263 cases). Serotypes O, A, Asia-1, and SAT-1 were detected, with serotype O predominating. Outbreaks declined significantly after the 1980s, coinciding with mass vaccination, improved diagnostics, and targeted biosecurity measures. Notable milestones included integration of the A/Armenia/98 strain into vaccines (1999) and adoption of polyvalent vaccines containing the A/ASIA/G-VII lineage (2016). No outbreaks have been reported since 2016. Conclusion: Armenia's sustained control of FMD reflects adaptive vaccination strategies, early serotype detection, and regional cooperation. Progression from PCP-FMD Stage 2 to Stage 3 will require enhanced vaccination coverage, expanded surveillance, and strengthened veterinary infrastructure. Historical lessons from Armenia's control strategies may inform FMD management in similar transboundary risk zones.
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