Control of a foot-and-mouth disease epidemic in Argentina

Andres M. Perez, Michael P. Ward, Tim Carpenter

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

A major epidemic of foot-and-mouth disease affected Argentina during 2001. The epidemic was controlled by mass-vaccination of the national herd and movement restrictions. The median herd disease reproduction ratio (R H) decreased significantly from 2.4 (before the epidemic was officially recognized) to 1.2 during the mass-vaccination campaign and <1 following the mass-vaccination campaign. The largest distance between two outbreaks was similar during (1905 km) and after (1890 km) the mass-vaccination. However, after mass-vaccination was completed, the proportion of herd outbreaks clustered decreased from 70.4% to 66.8%, respectively. Although a combination of vaccination and livestock-movement restrictions was effective in controlling the epidemic, 112 herd outbreaks occurred up to 6 months after the end of the mass-vaccination campaign. Mass-vaccination and movement restrictions might be an effective strategy to control FMD; however, the time taken to end large, national epidemics might be >1 year.

Original languageEnglish (US)
Pages (from-to)217-226
Number of pages10
JournalPreventive Veterinary Medicine
Volume65
Issue number3-4
DOIs
StatePublished - Oct 14 2004

Keywords

  • Argentina
  • Control
  • Foot-and-mouth disease
  • Reproduction ratio
  • Spatial distribution

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)

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