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December 1, 2008Revue Scientifique et Technique de l OIEOpen Access

Foot and mouth disease in the Lao People's Democratic Republic: II. Seroprevalence estimates, using structured surveillance and survey of abattoirs

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Key result

The overall seroprevalence of foot and mouth disease virus in abattoir-sampled cattle, buffalo, and pigs in the Lao PDR was 18.7%, with serotype O being the most prevalent.

Population

Cattle, buffalo, and pigs in the Lao People's Democratic Republic

Design

Cross-sectional

Authors

SBStuart D. BlacksellThe University of SydneySKSyseng KhounsyMahidol UniversityJCJames V. ConlanACT Government

Discussion

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Implication

May inform FMD surveillance priorities in Lao PDR; leaves open the need for longitudinal studies to guide control.

Study Design

Type

Cross-Sectional (n=15,491)

Randomization

two-stage, single-stage, and fixed-number randomized sampling

Multicenter

Yes

Structured PICO

P
Population
15,491 cattle, buffalo, and pigs in the Lao PDR surveyed between 1996 and 2005 to determine the seroprevalence of foot and mouth disease virus.
O
Outcome
Seroprevalence of foot and mouth disease (FMD) virus

The study provides seroprevalence estimates of FMD in Lao PDR, highlighting significant variations by species, age, and province.

Limitations

  • Cross-reaction among FMDV serotypes in the LPB-ELISA making it difficult to ascertain if multiple serotype positivity is due to cross-reaction or previous exposure
  • Potential antigenic heterogeneity between FMDV strains causing disease and those used in the ELISA
  • Logistical constraints preventing the use of two-stage randomized sampling in all surveys

Cite This Study

Blacksell et al. (2008) conducted a cross-sectional in Foot and mouth disease (FMD) (n=15,491). Foot and mouth disease virus exposure was evaluated on FMDV seroprevalence. The overall seroprevalence of foot and mouth disease virus in abattoir-sampled cattle, buffalo, and pigs in the Lao PDR was 18.7%, with serotype O being the most prevalent.

synapsesocial.com/papers/6a6f587fa528af2d65c2f264https://doi.org/10.20506/rst.27.3.1839
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1The economic impact of foot and mouth disease and its control in South-East India: a preliminary assessment with special reference to Thailand1999 · 68 citations
  2. 2Pandemic Strain of Foot-and-Mouth Disease Virus Serotype O2005 · 190 citations
  3. 3The dynamics and impact of foot and mouth disease in smallholder farming systems in South-East Asia: a case study in Laos2002 · 63 citations
  4. 4A review of the status of foot and mouth disease in South-East Asia and approaches to control and eradication2002 · 109 citations