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Seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two Nigerian states

Despite modified stamping out eradication policy adopted in Nigeria, there was resurgence in 2015 of highly pathogenic avian influenza (HPAI) H5N1 with greater infectivity. A survey of the risk of spread of HPAI in two HPAI‐infected and ‐uninfected Nigerian states were studied. A cross‐sectional stu...

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Autores principales: Waziri, Musa Ibrahim, Abdu, Paul A., Sa'idu, Lawal, Bello, Mohammed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677776/
https://www.ncbi.nlm.nih.gov/pubmed/29152316
http://dx.doi.org/10.1002/vms3.73
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author Waziri, Musa Ibrahim
Abdu, Paul A.
Sa'idu, Lawal
Bello, Mohammed
author_facet Waziri, Musa Ibrahim
Abdu, Paul A.
Sa'idu, Lawal
Bello, Mohammed
author_sort Waziri, Musa Ibrahim
collection PubMed
description Despite modified stamping out eradication policy adopted in Nigeria, there was resurgence in 2015 of highly pathogenic avian influenza (HPAI) H5N1 with greater infectivity. A survey of the risk of spread of HPAI in two HPAI‐infected and ‐uninfected Nigerian states were studied. A cross‐sectional study to detect avian influenza (AI) H5 antibodies was conducted using haemagglutination inhibition (HI) test and enzyme‐linked immunosorbent assay (ELISA). A total of 950 birds’ sera were tested for AI H5 antibodies. Questionnaires were also administered to evaluate risks of AI spread in two states of Nigeria in 2013. AI H5 seroprevalence of 3% and 5% were obtained in Bauchi and Gombe states, respectively. Free flying and captive wild birds had 15% and 11% seroprevalence, respectively. Ninety‐two per cent AI awareness and 90% preparedness to report outbreaks of poultry diseases were recorded. Veterinary personnel, radio and television contributed 87% to HPAI awareness. Of the 10 risk categories evaluated, Gombe state had 3 moderate and 1 high risk of AI virus spread. Bauchi state recorded 5 moderate and 1 high risk of AI virus spread. Chi‐square analysis showed associations of altitude, temperature, rainfall and presence of live bird markets (LBMs) (P < 0.05) to AI seroprevalence. Odds ratio at 95% CI (1.313–6.333) indicated LBMs presence to be three times more likely to influence AI occurrence. HPAI H5N1 resurged in many states and occurred for the first time in Gombe state in 2015. Veterinary personnel, radio and television may be reliable in changing farmers’ attitudes to adopt good biosecurity practices.
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spelling pubmed-56777762017-11-17 Seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two Nigerian states Waziri, Musa Ibrahim Abdu, Paul A. Sa'idu, Lawal Bello, Mohammed Vet Med Sci Original Articles Despite modified stamping out eradication policy adopted in Nigeria, there was resurgence in 2015 of highly pathogenic avian influenza (HPAI) H5N1 with greater infectivity. A survey of the risk of spread of HPAI in two HPAI‐infected and ‐uninfected Nigerian states were studied. A cross‐sectional study to detect avian influenza (AI) H5 antibodies was conducted using haemagglutination inhibition (HI) test and enzyme‐linked immunosorbent assay (ELISA). A total of 950 birds’ sera were tested for AI H5 antibodies. Questionnaires were also administered to evaluate risks of AI spread in two states of Nigeria in 2013. AI H5 seroprevalence of 3% and 5% were obtained in Bauchi and Gombe states, respectively. Free flying and captive wild birds had 15% and 11% seroprevalence, respectively. Ninety‐two per cent AI awareness and 90% preparedness to report outbreaks of poultry diseases were recorded. Veterinary personnel, radio and television contributed 87% to HPAI awareness. Of the 10 risk categories evaluated, Gombe state had 3 moderate and 1 high risk of AI virus spread. Bauchi state recorded 5 moderate and 1 high risk of AI virus spread. Chi‐square analysis showed associations of altitude, temperature, rainfall and presence of live bird markets (LBMs) (P < 0.05) to AI seroprevalence. Odds ratio at 95% CI (1.313–6.333) indicated LBMs presence to be three times more likely to influence AI occurrence. HPAI H5N1 resurged in many states and occurred for the first time in Gombe state in 2015. Veterinary personnel, radio and television may be reliable in changing farmers’ attitudes to adopt good biosecurity practices. John Wiley and Sons Inc. 2017-10-11 /pmc/articles/PMC5677776/ /pubmed/29152316 http://dx.doi.org/10.1002/vms3.73 Text en © 2017 The Authors. Veterinary Medicine and Science Published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Waziri, Musa Ibrahim
Abdu, Paul A.
Sa'idu, Lawal
Bello, Mohammed
Seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two Nigerian states
title Seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two Nigerian states
title_full Seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two Nigerian states
title_fullStr Seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two Nigerian states
title_full_unstemmed Seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two Nigerian states
title_short Seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two Nigerian states
title_sort seroepidemiology and assessment of risk factors for the spread of avian influenza in birds in two nigerian states
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677776/
https://www.ncbi.nlm.nih.gov/pubmed/29152316
http://dx.doi.org/10.1002/vms3.73
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