Background And Aim: Elephant endotheliotropic herpesvirus (EEHV) is an emerging disease of elephant. Therefore, a study was conducted to know the actual status of the disease in Assam State of India.
Materials And Methods: A total of 289 Asian elephants of Assam were screened during 2 years of study from April 2017 to March 2019. The clinical symptoms of diseased as well as gross and histopathological changes of dead elephants were recorded for the diagnosis of the disease. Virus involved in the occurrence of the disease was confirmed by polymerase chain reaction (PCR).
Results: In the present study, a total of three elephant calves out of 22 were found positive to EEHV1A. On the other hand, three adult asymptomatic elephants were also found positive for EEHV1 on screening 267 captive Asian elephants of Assam. The amplified PCR product showed band size of 520, 600, and 930 bp. The PCR amplified product with size 600 bp had shown the gene sequence for EEHV1U77/HEL. Gross lesions include congested blood vessels of the liver and intestinal mucosa, foci of petechiae in the spleen, and heart and focal ulceration in the dorsal surface of the tongue. Microscopically, the kidneys showed intertubular edema and focal areas of degeneration associated with coagulative necrosis of the tubular epithelium. The liver showed hydropic degeneration and fatty changes of the hepatocytes. There was a massive proliferation of fibroblasts in the interlobular spaces which penetrated the necrosed areas of the hepatic lobules.
Conclusion: A total of three wild rescued elephant calves and three asymptomatic adults were found positive for EEHV1A during the 2 years of study. The PCR amplified product with size 600 bp had shown the gene sequence for EEHV1U77/HEL.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6925033 | PMC |
| http://dx.doi.org/10.14202/vetworld.2019.1790-1796 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Can ecosystem services supply match local residents' perception: Linking macro-ESs and micro-individual perceptions in the Yellow River Basin.
J Environ Manage
January 2025
Management Science Institute, Hohai University, Nanjing, 210098, China.
Residents' satisfaction perceptions of ecosystem services (ESs) are essential for the ecological protection and high-quality development of the Yellow River Basin (YRB). Existing studies lacks large-scale survey of local residents' satisfaction perception at urban scale within river basins, and has not effectively explored the matching relationship between the ESs supply and the perceptions of local residents. To address this gap, this study develops a database on nine ESs supply and individual perceptions of the YRB, constructs a comprehensive framework to quantify the matching of ESs supply and local residents' satisfaction perceptions, and proposes targeted strategy.
View Article and Find Full Text PDFCharacteristics of gut microbiota profiles in Asian elephants (Elephas maximus) with gastrointestinal disorders.
Sci Rep
January 2025
Center of Elephant and Wildlife Health, Animal Hospital, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand.
Colic and diarrhea are common gastrointestinal (GI) disorders in captive Asian elephants, which can severely impact health and lead to mortality. Gut dysbiosis, indicated by alterations in gut microbiome composition, can be observed in individuals with GI disorders. However, changes in gut microbial profiles of elephants with GI disorders have never been investigated.
View Article and Find Full Text PDFMulti-Antigen Elephant Endotheliotropic Herpesvirus (EEHV) mRNA Vaccine Induces Humoral and Cell-Mediated Responses in Mice.
Vaccines (Basel)
December 2024
Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA.
Elephant endotheliotropic herpesvirus (EEHV) causes lethal hemorrhagic disease (HD) in Asian and African elephants in human care and the wild. It is the leading cause of death for young Asian elephants in North American and European zoos despite sensitive diagnostic tests and improved treatments. Thus, there is a critical need to develop an effective vaccine to prevent severe illness and reduce mortality from EEHV-HD.
View Article and Find Full Text PDFObesity Prevalence and Associated Factors in Captive Asian Elephants () in China: A Body Condition Assessment Study.
Animals (Basel)
December 2024
Key Laboratory for Biodiversity Science and Ecological Engineering, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China.
Obesity is a prevalent health issue among captive wildlife, but the obesity status of captive Asian elephants () in China has not been systematically investigated. This study assessed obesity in 204 captive Asian elephants across 43 facilities by recording seven potentially relevant variables: sex, age, daily feed supply, proportion of high-calorie feed, outdoor enclosure area, outdoor time, and foot disorders. Body condition was evaluated using visual scoring, revealing a high prevalence of overweight and obesity, particularly in zoo-kept elephants.
View Article and Find Full Text PDFSEROCONVERSION CAN PRECEDE CULTURE CONFIRMED DIAGNOSIS OF INFECTION IN ASIAN ELEPHANTS () BY DECADES.
J Zoo Wildl Med
December 2024
Elephant Sanctuary in Tennessee, Hohenwald, TN 38462, USA.
() infection was diagnosed in 16 human-managed Asian elephants () at four different US facilities. A retrospective review was performed to collate information on serological test results and describe the timelines from exposure to an elephant known to be positive for , detection of antimycobacterial antibodies in the exposed elephant, and isolation from the exposed elephant to confirm diagnosis. Seroconversion was defined by a positive test result using ElephantTB STAT-PAK, multiantigen print immunoassay, or DPP VetTB assay for elephants (Chembio Diagnostic Systems, Inc).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!