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Lane JK, Negash Y, Randhawa N, Kebede N, Wells H, Ayalew G, Anthony SJ, Smith B, Goldstein T, Kassa T, Mazet JAK, Consortium P, Smith WA. Coronavirus and Paramyxovirus Shedding by Bats in a Cave and Buildings in Ethiopia. ECOHEALTH 2022; 19:216-232. [PMID: 35771308 PMCID: PMC9243955 DOI: 10.1007/s10393-022-01590-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 04/13/2022] [Indexed: 06/15/2023]
Abstract
Bats are important hosts of zoonotic viruses with pandemic potential, including filoviruses, MERS-Coronavirus (CoV), SARS-CoV -1, and likely SARS-CoV-2. Viral infection and transmission among wildlife are dependent on a combination of factors that include host ecology and immunology, life history traits, roosting habitats, biogeography, and external stressors. Between 2016 and 2018, four species of insectivorous bats from a readily accessed roadside cave and buildings in Ethiopia were sampled and tested for viruses using consensus PCR assays for five viral families/genera. Previously identified and novel coronaviruses and paramyxoviruses were identified in 99 of the 589 sampled bats. Bats sampled from the cave site were more likely to test positive for a CoV than bats sampled from buildings; viral shedding was more common in the wet season; and rectal swabs were the most common sample type to test positive. A previously undescribed alphacoronavirus was detected in two bat species from different taxonomic families, sampling interfaces, geographic locations, and years. These findings expand knowledge of the range and diversity of coronaviruses and paramyxoviruses in insectivorous bats in Ethiopia and reinforce that an improved understanding of viral diversity and species-specific shedding dynamics is important for designing informed zoonotic disease surveillance and spillover risk reduction efforts.
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Affiliation(s)
- Jennifer K Lane
- One Health Institute and Karen C. Drayer Wildlife Health Center, School of Veterinary Medicine, University of California, Davis, 1089 Veterinary Medicine Drive, VM3B, Davis, CA, 95616, USA.
| | - Yohannes Negash
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
| | - Nistara Randhawa
- One Health Institute and Karen C. Drayer Wildlife Health Center, School of Veterinary Medicine, University of California, Davis, 1089 Veterinary Medicine Drive, VM3B, Davis, CA, 95616, USA
| | - Nigatu Kebede
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
| | - Heather Wells
- Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY, 10027, USA
| | - Girma Ayalew
- Ethiopian Wildlife Conservation Authority, Ministry of Environment, Forestry and Climate Change, Addis Ababa, Ethiopia
| | - Simon J Anthony
- School of Veterinary Medicine, University of California, Davis, Davis, CA, 95616, USA
| | - Brett Smith
- Genome Center & Biomedical Engineering, School of Medicine, University of California, Davis, Davis, CA, 95616, USA
| | - Tracey Goldstein
- Zoological Pathology Program, University of Illinois at Urbana-Champaign, Brookfield, IL, 60513, USA
| | - Tesfu Kassa
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
| | - Jonna A K Mazet
- One Health Institute and Karen C. Drayer Wildlife Health Center, School of Veterinary Medicine, University of California, Davis, 1089 Veterinary Medicine Drive, VM3B, Davis, CA, 95616, USA
| | | | - Woutrina A Smith
- One Health Institute and Karen C. Drayer Wildlife Health Center, School of Veterinary Medicine, University of California, Davis, 1089 Veterinary Medicine Drive, VM3B, Davis, CA, 95616, USA.
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Sohn JH, Fukui D, Nojiri T, Minowa K, Kimura J, Koyabu D. Three-Dimensional and Histological Observations on Male Genital Organs of Greater Horseshoe Bat, Rhinolophus ferrumequinum. J MAMM EVOL 2020. [DOI: 10.1007/s10914-020-09525-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractAnatomy of bat genital organs has been conventionally studied by gross and microscopic observations to date. Here, we employ both histological observation and diceCT (diffusible iodine-based contrast-enhanced computed tomography) to study the detailed three-dimensional morphological structure of the male genital organs in bats, using the greater horseshoe bat, Rhinolophus ferrumequinum. This is the first study to three-dimensionally describe the whole reproductive organs of bats in detail. Our highly resolved three-dimensional reconstruction reveals that the male organs of R. ferrumequinum consist of paired testes, epididymides, deferent ducts, and five accessory genital glands. The boundary between the ampullary and vesicular glands has been difficult to identify in previous observations, but our diceCT imaging allowed us to clearly differentiate the two. We found that the ampullary gland is located at the terminal part of the deferent ducts, and the vesicular gland lies distal to the ampullary glands. This species possesses a single and carrot-shaped urethral gland, which is not found in most chiropteran families. The presence of the urethral gland in this species and its secretions suggest that after copulation this species is capable of forming a vaginal plug, which can seal the female’s vaginal orifice to block the entrance of spermatozoa from other males. The presence of the urethral gland and elongated epididymal tail and the fact that some individuals can terminate their hibernation and reactivate imply forced copulation on hibernating females can occur in R. ferrumequinum.
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Isaac SS, Marimuthuand G, Chandrashekaran MK. Fecundity in the Indian pygmy bat (
Pipistrellus mimus
). J Zool (1987) 2009. [DOI: 10.1111/j.1469-7998.1994.tb04872.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. Suthakar Isaac
- Department of Animal Behaviour and Physiology, School of Biological Sciences, Madurai Kamaraj University, Madurai—625021, India
| | - G. Marimuthuand
- Department of Animal Behaviour and Physiology, School of Biological Sciences, Madurai Kamaraj University, Madurai—625021, India
| | - M. K. Chandrashekaran
- Department of Animal Behaviour and Physiology, School of Biological Sciences, Madurai Kamaraj University, Madurai—625021, India
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