Estimation of the sensitivity of the surveillance system for avian influenza in the western region of Cuba
Although avian influenza (AI) virus of H5 and H7 subtypes has the potential to mutate to a highly pathogenic form and cause very high mortalities in some poultry species, most AI infections in poultry are due to low pathogenic AI (LPAI). Hence serological surveys, coupled with passive surveillance a...
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Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale
2013-03-01
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Online Access: | http://www.izs.it/vet_italiana/2013/49_1/99.pdf |
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doaj-9a12d8610b9643aab947449383288c332020-11-24T21:38:09ZengIstituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. CaporaleVeterinaria Italiana0505-401X1828-14272013-03-0149199107Estimation of the sensitivity of the surveillance system for avian influenza in the western region of CubaEdyniesky FerrerPaolo CalistriOsvaldo FonsecaCarla IppolitiPastor AlfonsoSimona IannettiMaría A. AbeledoOctavio FernándezMaría I. PercedoAntonio PérezAlthough avian influenza (AI) virus of H5 and H7 subtypes has the potential to mutate to a highly pathogenic form and cause very high mortalities in some poultry species, most AI infections in poultry are due to low pathogenic AI (LPAI). Hence serological surveys, coupled with passive surveillance activities, are essential to detect sub-clinical infections by LPAI viruses, H5 and H7 subtypes. However the proper planning of an active surveillance system should be based on a careful estimation of its performance. Therefore, the sensitivity of the active surveillance system for AI in the western region of Cuba was assessed by a stochastic model quantifying the probability of revealing at least one animal infected by H5 or H7 subtype. The diagnostic sensitivity of the haemagglutination inhibition assay and different levels of within-flock prevalence (5%, 12% and 30%) were considered. The sensitivity of the surveillance system was then assessed under five different samples size scenarios: testing 20, 30, 40, 50 or 60 animals in each flock. Poultry flock sites in the western region of Cuba with a size ranging from 10,000 to 335,000 birds were included in the study. http://www.izs.it/vet_italiana/2013/49_1/99.pdfAvian influenzaCubaH5 subtypeH7 subtypeLPAIPoultrySurveillance system |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Edyniesky Ferrer Paolo Calistri Osvaldo Fonseca Carla Ippoliti Pastor Alfonso Simona Iannetti María A. Abeledo Octavio Fernández María I. Percedo Antonio Pérez |
spellingShingle |
Edyniesky Ferrer Paolo Calistri Osvaldo Fonseca Carla Ippoliti Pastor Alfonso Simona Iannetti María A. Abeledo Octavio Fernández María I. Percedo Antonio Pérez Estimation of the sensitivity of the surveillance system for avian influenza in the western region of Cuba Veterinaria Italiana Avian influenza Cuba H5 subtype H7 subtype LPAI Poultry Surveillance system |
author_facet |
Edyniesky Ferrer Paolo Calistri Osvaldo Fonseca Carla Ippoliti Pastor Alfonso Simona Iannetti María A. Abeledo Octavio Fernández María I. Percedo Antonio Pérez |
author_sort |
Edyniesky Ferrer |
title |
Estimation of the sensitivity of the surveillance system for avian influenza in the western region of Cuba |
title_short |
Estimation of the sensitivity of the surveillance system for avian influenza in the western region of Cuba |
title_full |
Estimation of the sensitivity of the surveillance system for avian influenza in the western region of Cuba |
title_fullStr |
Estimation of the sensitivity of the surveillance system for avian influenza in the western region of Cuba |
title_full_unstemmed |
Estimation of the sensitivity of the surveillance system for avian influenza in the western region of Cuba |
title_sort |
estimation of the sensitivity of the surveillance system for avian influenza in the western region of cuba |
publisher |
Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale |
series |
Veterinaria Italiana |
issn |
0505-401X 1828-1427 |
publishDate |
2013-03-01 |
description |
Although avian influenza (AI) virus of H5 and H7 subtypes has the potential to mutate to a highly pathogenic form and cause very high mortalities in some poultry species, most AI infections in poultry are due to low pathogenic AI (LPAI). Hence serological surveys, coupled with passive surveillance activities, are essential to detect sub-clinical infections by LPAI viruses, H5 and H7 subtypes. However the proper planning of an active surveillance system should be based on a careful estimation of its performance. Therefore, the sensitivity of the active surveillance system for AI in the western region of Cuba was assessed by a stochastic model quantifying the probability of revealing at least one animal infected by H5 or H7 subtype. The diagnostic sensitivity of the haemagglutination inhibition assay and different levels of within-flock prevalence (5%, 12% and 30%) were considered. The sensitivity of the surveillance system was then assessed under five different samples size scenarios: testing 20, 30, 40, 50 or 60 animals in each flock. Poultry flock sites in the western region of Cuba with a size ranging from 10,000 to 335,000 birds were included in the study. |
topic |
Avian influenza Cuba H5 subtype H7 subtype LPAI Poultry Surveillance system |
url |
http://www.izs.it/vet_italiana/2013/49_1/99.pdf |
work_keys_str_mv |
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