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Hosamani M, Gopinath S, Sreenivasa BP, Behera S, Basagoudanavar SH, Boora A, Bora DP, Deka P, Bhanuprakash V, Singh RK, Sanyal A, Weerdmeester K, Dekker A. A new blocking ELISA for detection of foot-and-mouth disease non-structural protein (NSP) antibodies in a broad host range. Appl Microbiol Biotechnol 2022; 106:6745-6757. [DOI: 10.1007/s00253-022-12151-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 08/05/2022] [Accepted: 08/25/2022] [Indexed: 11/28/2022]
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Siengsanan-Lamont J, Douangngeun B, Theppangna W, Khounsy S, Phommachanh P, Kamolsiripichaiporn S, Udon R, Seeyo KB, Selleck PW, Matsumoto N, Gleeson LJ, Blacksell SD. Seroepidemiology of Foot and Mouth Disease using passive surveillance techniques in selected provinces of Lao PDR. Trop Anim Health Prod 2021; 53:303. [PMID: 33934210 PMCID: PMC8088427 DOI: 10.1007/s11250-021-02734-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/18/2021] [Indexed: 11/25/2022]
Abstract
Foot and Mouth Disease (FMD) is a high-impact, contagious transboundary animal disease that is endemic in Southeast Asia. Abattoir samples were routinely collected in six selected provinces between March and December 2019. A total of 1280 samples of abattoir animals were tested for FMD Non-Structural Protein (NSP) antibodies to indicate natural infections. Overall, 22.8% were seropositive for FMD NSP antibodies while seroprevalence of cattle (n = 469), buffalo (n = 214), and pigs (n = 597) were 44.6%, 35.0%, and 1.3%, respectively. The highest seroprevalence destination province was Xiengkhouang (35.3% of 272 samples), followed by Savannakhet (27.0% of 244 samples). Risk factors for evidence of natural infection identified by a multivariate logistic regression model included age groups (p-value = 0.02) and origin provinces (p-value = 2.8 × 10−5) of the animals. There were significant differences of FMD NSP seroprevalence between age groups and origin provinces of the animals. The odds ratio of a seropositive result in the less than 1 year old group was 2.5 (95% CI; 1.4, 4.4) when compared to the 3–4 years old group, while the odds ratios for animals that originated from Khammouane and Xiengkhouang provinces were 4.5 (95% CI; 1.1, 18.7) and 2.4 (95% CI; 1.4, 4.1), respectively, when compared to Champasak province. Serotype-specific antibody ELISA for 44 NSP antibody–positive samples revealed evidence of FMD serotypes O and A virus circulation in some provinces. Despite the passive abattoir survey providing useful information on FMD virus previous exposure and geographic locations of the animals, timely information on FMD virus circulation and distribution is also crucial to an effective control program. Alternative approaches to increase the cost-effectiveness of the surveillance network are also discussed.
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Affiliation(s)
- Jarunee Siengsanan-Lamont
- Maidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Bounlom Douangngeun
- National Animal Health Laboratory, Department of Livestock and Fisheries, Ministry of Agriculture and Forestry, Vientiane, Lao People's Democratic Republic
| | - Watthana Theppangna
- National Animal Health Laboratory, Department of Livestock and Fisheries, Ministry of Agriculture and Forestry, Vientiane, Lao People's Democratic Republic
| | - Syseng Khounsy
- National Animal Health Laboratory, Department of Livestock and Fisheries, Ministry of Agriculture and Forestry, Vientiane, Lao People's Democratic Republic
| | - Phouvong Phommachanh
- National Animal Health Laboratory, Department of Livestock and Fisheries, Ministry of Agriculture and Forestry, Vientiane, Lao People's Democratic Republic
| | - Somjai Kamolsiripichaiporn
- Maidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Romphruke Udon
- Regional Reference Laboratory for Foot and Mouth Disease in South East Asia, Department of Livestock Development, Nakhon Ratchasima, Thailand
| | - Kingkarn Boonsuya Seeyo
- Regional Reference Laboratory for Foot and Mouth Disease in South East Asia, Department of Livestock Development, Nakhon Ratchasima, Thailand
| | - Paul W Selleck
- Maidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Nina Matsumoto
- Sydney School of Veterinary Science, University of Sydney, Camden, Australia
| | - Laurence J Gleeson
- Maidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Stuart D Blacksell
- Maidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Mahosot Hospital, Vientiane, Lao People's Democratic Republic.
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