Evidence of high EEHV antibody seroprevalence and spatial variation among captive Asian elephants (Elephas maximus) in Thailand
| Autor: | Angkawanish, Taweepoke, Nielen, Mirjam, Vernooij, Hans, Brown, Janine L, van Kooten, Peter J S, van den Doel, Petra B, Schaftenaar, Willem, Na Lampang, Kannika, Rutten, Victor P M G, dFAH AVR, LS Evidence Based Vet Medicine, LS Theoretische Epidemiologie, dI&I RA-I&I I&I, LS Immunologie, Immunologie |
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| Přispěvatelé: | Virology, dFAH AVR, LS Evidence Based Vet Medicine, LS Theoretische Epidemiologie, dI&I RA-I&I I&I, LS Immunologie, Immunologie |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Male Veterinary medicine EEHV Population Elephants Prevalence Seroprevalence Enzyme-Linked Immunosorbent Assay Antibodies Viral lcsh:Infectious and parasitic diseases Serology Elephant endotheliotropic herpesvirus 03 medical and health sciences Viral Proteins 0302 clinical medicine Elephas Asian elephant Risk Factors Seroepidemiologic Studies Virology glucoprotein B ELISA Animals lcsh:RC109-216 education Herpesviridae Retrospective Studies education.field_of_study biology Captive elephants Incidence (epidemiology) Research Herpesviridae Infections biology.organism_classification Thailand 030104 developmental biology Infectious Diseases Cross-Sectional Studies risk factor Regression Analysis 030211 gastroenterology & hepatology Female Glycoprotein B ELISA |
| Zdroj: | Virology Journal Virology Journal, Vol 16, Iss 1, Pp 1-9 (2019) Virology Journal, 16:33. BioMed Central Ltd. Virology Journal, 16(1). BioMed Central |
| ISSN: | 1743-422X |
| DOI: | 10.1186/s12985-019-1142-8 |
| Popis: | Background Elephant endotheliotropic herpesviruses (EEHV) can cause an acute highly fatal hemorrhagic disease in young Asian elephants (Elephas maximus), both ex situ and in situ. Amongst eight EEHV types described so far, type 1 (subtype 1A and 1B) is the predominant disease-associated type. Little is known about routes of infection and pathogenesis of EEHV, and knowledge of disease prevalence, especially in range countries, is limited. Methods A large cross-sectional serological survey was conducted in captive elephants (n = 994) throughout Thailand using an EEHV-1A glycoprotein B protein antigen specific antibody ELISA. Results Antibody seroprevalence was 42.3%, with 420 of 994 elephants testing positive. Associations between seropositivity and potential risk factors for EEHV infection were assessed and included: elephant age, sex, camp cluster size, management type (extensive versus intensive), sampling period (wet vs. dry season) and location of camp (region). Univariable regression analysis identified management system and region as risk factors for the presence of EEHV antibodies in elephants, with region being significant in the final multivariable regression model. Prevalence was highest in the North region of the country (49.4%). Conclusions This study produced baseline serological data for captive elephants throughout Thailand, and showed a significant EEHV burden likely to be maintained in the captive population. Electronic supplementary material The online version of this article (10.1186/s12985-019-1142-8) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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