Key result
Prior FMDV infection affects ~22% of sampled Vietnamese ruminants, including persistent asymptomatic carriers.
Why the study?
The natural ecology and epidemiology of foot-and-mouth disease virus in endemic regions like Vietnam remain poorly understood.
Population
Ruminants including cattle and buffalo in Vietnam
Comparison
Dairy farms vs intermediate size farms and history of infection in 2010; buffalo vs cattle exposure and carrier prevalence
Design
Multidisciplinary molecular and conventional epidemiological cross-sectional study
Follow-up
Up to 1 year for viral sequence monitoring
Authors
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May warrant expanded FMDV surveillance in Vietnamese ruminants; leaves open transmission dynamics and control efficacy.
Cross-Sectional
The study identifies a high prevalence of asymptomatic FMDV carriers in Vietnam and highlights the role of transboundary movement and within-host evolution in regional disease persistence.
Ferreira et al. (2015) conducted a cross-sectional in Foot-and-mouth disease. FMDV infection was evaluated on Previous FMDV infection. Among sampled ruminants in Vietnam, 22.3% had prior FMDV infection, with 2.4% of the total population identified as persistent, asymptomatic carriers.
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