Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia

Following a series of H5N1 cases in chickens and birds in a few states in Malaysia, there was much interest in the influenza A viruses subtypes that circulate among the local pig populations. Pigs may act as a mixing vessel for avian and mammal influenza viruses, resulting in new reassorted viruses....

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Những tác giả chính: Ramiah, Suriya Kumari, Hassan, Latiffah, Omar, Abdul Rahman, Ideris, Aini, Tan, C. G., Lim, Y. S., Mat Isa, Kamaruddin
Định dạng: Bài viết
Ngôn ngữ:English
Được phát hành: Blackwell Publishing 2008
Truy cập trực tuyến:http://psasir.upm.edu.my/id/eprint/16677/1/Seroprevalence%20and%20risk%20factors%20for%20influenza%20a%20viruses%20in%20pigs%20in%20Peninsular%20Malaysia.pdf
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spelling oai:psasir.upm.edu.my:16677 http://psasir.upm.edu.my/id/eprint/16677/ Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia Ramiah, Suriya Kumari Hassan, Latiffah Omar, Abdul Rahman Ideris, Aini Tan, C. G. Lim, Y. S. Mat Isa, Kamaruddin Following a series of H5N1 cases in chickens and birds in a few states in Malaysia, there was much interest in the influenza A viruses subtypes that circulate among the local pig populations. Pigs may act as a mixing vessel for avian and mammal influenza viruses, resulting in new reassorted viruses. This study investigated the presence of antibodies against influenza H1N1 and H3N2 viruses in pigs from Peninsular Malaysia using Herdcheck Swine Influenza H1N1 and H3N2 Antibody Test Kits. At the same time, the presence of influenza virus was examined from the nasal swabs of seropositive pigs by virus isolation and real time RT-PCR. The list of pig farms was obtained from the headquarters of the Department of Veterinary Services, Malaysia, and pig herds were selected randomly from six of 11 states in Peninsular Malaysia. A total of 727 serum and nasal swab samples were collected from 4- to 6-month-old pigs between May and August 2005. By ELISA, the seroprevalences of swine influenza H1N1 and H3N2 among pigs were 12.2% and 12.1% respectively. Seropositivity for either of the virus subtypes was detected in less than half of the 41 sampled farms (41.4%). Combination of both subtypes was detected in 4% of all pigs and in 22% of sampled farms. However, no virus or viral nucleic acid was detected from nasal samples. This study identified that the seropositivity of pigs to H1N1 and H3N2 based on ELISA was significantly associated with factors such as size of farm, importation or purchase of pigs, proximity of farm to other pig farms and the presence of mammalian pets within the farm. Blackwell Publishing 2008-09 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16677/1/Seroprevalence%20and%20risk%20factors%20for%20influenza%20a%20viruses%20in%20pigs%20in%20Peninsular%20Malaysia.pdf Ramiah, Suriya Kumari and Hassan, Latiffah and Omar, Abdul Rahman and Ideris, Aini and Tan, C. G. and Lim, Y. S. and Mat Isa, Kamaruddin (2008) Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia. Zoonoses and Public Health, 55 (7). pp. 342-351. ISSN 1863-1959; ESSN: 1863-2378 http://onlinelibrary.wiley.com/doi/10.1111/j.1863-2378.2008.01138.x/abstract 10.1111/j.1863-2378.2008.01138.x
institution UPM IR
collection UPM IR
language English
description Following a series of H5N1 cases in chickens and birds in a few states in Malaysia, there was much interest in the influenza A viruses subtypes that circulate among the local pig populations. Pigs may act as a mixing vessel for avian and mammal influenza viruses, resulting in new reassorted viruses. This study investigated the presence of antibodies against influenza H1N1 and H3N2 viruses in pigs from Peninsular Malaysia using Herdcheck Swine Influenza H1N1 and H3N2 Antibody Test Kits. At the same time, the presence of influenza virus was examined from the nasal swabs of seropositive pigs by virus isolation and real time RT-PCR. The list of pig farms was obtained from the headquarters of the Department of Veterinary Services, Malaysia, and pig herds were selected randomly from six of 11 states in Peninsular Malaysia. A total of 727 serum and nasal swab samples were collected from 4- to 6-month-old pigs between May and August 2005. By ELISA, the seroprevalences of swine influenza H1N1 and H3N2 among pigs were 12.2% and 12.1% respectively. Seropositivity for either of the virus subtypes was detected in less than half of the 41 sampled farms (41.4%). Combination of both subtypes was detected in 4% of all pigs and in 22% of sampled farms. However, no virus or viral nucleic acid was detected from nasal samples. This study identified that the seropositivity of pigs to H1N1 and H3N2 based on ELISA was significantly associated with factors such as size of farm, importation or purchase of pigs, proximity of farm to other pig farms and the presence of mammalian pets within the farm.
format Article
author Ramiah, Suriya Kumari
Hassan, Latiffah
Omar, Abdul Rahman
Ideris, Aini
Tan, C. G.
Lim, Y. S.
Mat Isa, Kamaruddin
spellingShingle Ramiah, Suriya Kumari
Hassan, Latiffah
Omar, Abdul Rahman
Ideris, Aini
Tan, C. G.
Lim, Y. S.
Mat Isa, Kamaruddin
Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia
author_facet Ramiah, Suriya Kumari
Hassan, Latiffah
Omar, Abdul Rahman
Ideris, Aini
Tan, C. G.
Lim, Y. S.
Mat Isa, Kamaruddin
author_sort Ramiah, Suriya Kumari
title Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia
title_short Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia
title_full Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia
title_fullStr Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia
title_full_unstemmed Seroprevalence and risk factors for influenza a viruses in pigs in Peninsular Malaysia
title_sort seroprevalence and risk factors for influenza a viruses in pigs in peninsular malaysia
publisher Blackwell Publishing
publishDate 2008
url http://psasir.upm.edu.my/id/eprint/16677/1/Seroprevalence%20and%20risk%20factors%20for%20influenza%20a%20viruses%20in%20pigs%20in%20Peninsular%20Malaysia.pdf
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