Evaluating surveillance in wild birds by the application of risk assessment of avian influenza introduction into Spain

Early detection of highly pathogenic avian influenza (HPAI) in its natural reservoirs is a prerequisite for preventing disease spread to humans. The risk of introduction of H5N1 HPAI was assessed in order to design a risk-based surveillance system in Spain. Areas at highest risk for H5N1 HPAI follow...

Full description

Bibliographic Details
Published in:Epidemiology and Infection
Main Authors: Martinez, M., Perez, A. M., De La Torre Reoyo, Ana Isabel, Iglesias Martín, Irene, Sánchez-Vizcaíno, J. M., Muñoz, M. J.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press 2011
Subjects:
Avian flu
Risk assessment
Spatial modelling
Surveillance system
Veterinary epidemiology
Online Access:https://hdl.handle.net/20.500.12792/2715
http://hdl.handle.net/10261/295268
https://doi.org/10.1017/S0950268810001287
Description
Summary:Early detection of highly pathogenic avian influenza (HPAI) in its natural reservoirs is a prerequisite for preventing disease spread to humans. The risk of introduction of H5N1 HPAI was assessed in order to design a risk-based surveillance system in Spain. Areas at highest risk for H5N1 HPAI followed a northeast-southwest direction, with two significant clusters located in the north and the southwest of the country. Most (83%) of the veterinary units (VUs) obtained fewer samples than would have been expected if samples had been collected using a risk-based design. In October 2009, a HPAI outbreak was reported for the first time in a Spanish layer farm located in a VU at high risk for HPAI, but no samples were collected. This risk-based surveillance approach will increase the cost-effectiveness of HPAI surveillance in Spain and can be easily extended to and adopted by other countries and regions throughout the world. © 2010 Cambridge University Press.

Similar Items