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Perea S, Meinecke CD, Larsen-Gray AL, Greene DU, Villari C, Gandhi KJK, Castleberry SB. Winter diet of bats in working forests of the southeastern U.S. Coastal Plain. Sci Rep 2024; 14:12778. [PMID: 38834684 PMCID: PMC11150266 DOI: 10.1038/s41598-024-63062-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/24/2024] [Indexed: 06/06/2024] Open
Abstract
Working forests comprise a large proportion of forested landscapes in the southeastern United States and are important to the conservation of bats, which rely on forests for roosting and foraging. While relationships between bat ecology and forest management are well studied during summer, winter bat ecology remains understudied. Hence, we aimed to identify the diet composition of overwintering bats, compare the composition of prey consumed by bat species, and determine the potential role of forest bats as pest controllers in working forest landscapes of the southeastern U.S. Coastal Plain. During January to March 2021-2022, we captured 264 bats of eight species. We used DNA metabarcoding to obtain diet composition from 126 individuals of seven bat species identifying 22 orders and 174 families of arthropod prey. Although Coleoptera, Diptera, and Lepidoptera were the most consumed orders, we found that bats had a generalist diet but with significant differences among some species. We also documented the consumption of multiple insect pests (e.g., Rhyacionia frustrana) and disease vectors (e.g., Culex spp). Our results provide important information regarding the winter diet of bats in the southeastern U.S. Coastal Plain and their potential role in controlling economically relevant pest species and disease vectors.
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Affiliation(s)
- Santiago Perea
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA.
| | - Colton D Meinecke
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
| | | | - Daniel U Greene
- Weyerhaeuser Company, Environmental Research South, Columbus, MS, USA
| | - Caterina Villari
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
| | - Kamal J K Gandhi
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
| | - Steven B Castleberry
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
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2
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Bonilla-Aldana DK, Rodas-Fuenmayor MM, Ruiz-Aristizabal LM, Ulloque-Badaracco JR, Alarcón-Braga EA, Hernandez-Bustamante EA, Cabrera-Guzman JC, Ulloque-Badaracco RR, Benites-Zapata VA, Rodriguez-Morales AJ. Serological and molecular detection of dengue virus in animals: A systematic review and meta-analysis. LE INFEZIONI IN MEDICINA 2024; 32:183-201. [PMID: 38827825 PMCID: PMC11142411 DOI: 10.53854/liim-3202-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 03/27/2024] [Indexed: 06/05/2024]
Abstract
Introduction Dengue is a vector-borne disease, especially important in tropical and subtropical areas. The first presentation of many arboviral diseases occurred mainly in animals, including multiple Alphaviruses and Flaviviruses, such as dengue. Objective To determine the serological and molecular frequency of the dengue virus in animals. Methods A systematic literature review was carried out in five databases for the proportion of animals infected with dengue, defined by molecular and serological tests. A meta-analysis was performed using a random-effects model to calculate the pooled prevalence and 95% confidence intervals (CI). Cochran?s Q test and the I2 statistic were used to assess the heterogeneity between the two studies. Results The presence of dengue in bats, primates, birds, sheep, horses, cattle, pigs, rodents and buffaloes, according to serological methods, had a prevalence of 10%, 29%, 8%, 1%, 11%, 0%, 49%, 2%, 7%, respectively. According to molecular methods, the presence of dengue in bats had a seroprevalence of 6.0%. Conclusion The present study confirms the presence of the Dengue virus in a large group of animal species, with potential implications as possible reservoirs of this virus, raising the possibility of zoonotic transmission.
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Affiliation(s)
| | - Marcela María Rodas-Fuenmayor
- Faculty of Veterinary Medicine, Fundación Universitaria Autónoma de las Américas-Institución Universitaria Visión de las Américas, Pereira, Risaralda,
Colombia
| | - Luisa María Ruiz-Aristizabal
- Faculty of Veterinary Medicine, Fundación Universitaria Autónoma de las Américas-Institución Universitaria Visión de las Américas, Pereira, Risaralda,
Colombia
| | | | | | - Enrique A. Hernandez-Bustamante
- Sociedad Científica de Estudiantes de Medicina de la Universidad Nacional de Trujillo, Trujillo,
Peru
- Grupo Peruano de Investigación Epidemiológica, Unidad para la Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, Lima,
Peru
| | | | | | - Vicente A. Benites-Zapata
- Unidad de Investigación para la Generación y Síntesis de Evidencias en Salud, Vicerrectorado de Investigación, Universidad San Ignacio de Loyola, Lima,
Peru
| | - Alfonso J. Rodriguez-Morales
- Faculty of Health Sciences, Universidad Científica del Sur, Lima,
Peru
- Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Américas-Institución Universitaria Visión de las Américas, Pereira, Risaralda,
Colombia
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut,
Lebanon
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3
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Apoorva, Singh SK. A tale of endurance: bats, viruses and immune dynamics. Future Microbiol 2024. [PMID: 38648093 DOI: 10.2217/fmb-2023-0233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024] Open
Abstract
The emergence of highly zoonotic viral infections has propelled bat research forward. The viral outbreaks including Hendra virus, Nipah virus, Marburg virus, Ebola virus, Rabies virus, Middle East respiratory syndrome coronavirus, SARS-CoV and the latest SARS-CoV-2 have been epidemiologically linked to various bat species. Bats possess unique immunological characteristics that allow them to serve as a potential viral reservoir. Bats are also known to protect themselves against viruses and maintain their immunity. Therefore, there is a need for in-depth understanding into bat-virus biology to unravel the major factors contributing to the coexistence and spread of viruses.
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Affiliation(s)
- Apoorva
- Molecular Biology Unit, Faculty of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Sunit Kumar Singh
- Molecular Biology Unit, Faculty of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
- Dr. B R Ambedkar Center for Biomedical Research, University of Delhi (North Campus), New Delhi, 110007, India
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4
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Torres JM, de Oliveira CE, Santos FM, Sano NY, Martinez ÉV, Alves FM, Tavares LER, Roque ALR, Jansen AM, Herrera HM. Trypanosomatid diversity in a bat community of an urban area in Campo Grande, Mato Grosso do Sul, Brazil. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2024; 118:105563. [PMID: 38301855 DOI: 10.1016/j.meegid.2024.105563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/14/2023] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Bats have a long evolutionary history with trypanosomatids, but the role of these flying mammals on parasite transmission cycles in urban areas, especially for Trypanosoma and Leishmania species, remains poorly known. The objective of this study was to evaluate the species richness of trypanosomatids parasitizing a bat community in Campo Grande (CG), a state capital within the Cerrado of the Brazilian Midwest. We evaluated 237 bats of 13 species by means of hemoculture and molecular detection in spleen samples. The bat community of CG appears to participate in the transmission cycles of various species of trypanosomatids. We report an overall trypanosomatid detection rate of 34.2% (n = 81), involving 11 out of 13 sampled bat species. We identified six species of trypanosomatids from 61 bats by analyzing SSU rRNA and/or kDNA: Trypanosoma cruzi DTU TcI, T. c. marinkellei, T. dionisii, Leishmania infantum, L. amazonensis, and T. janseni, with this latter being detected by hemoculture for the first time in a bat species. We also detected a Molecular Operational Taxonomic Unit, Trypanosoma sp. DID, in the phyllostomids Glossophaga soricina and Platyrrhinus lineatus. The highest trypanosomatid richness was observed for Sturnira lilium, which hosted three species: L. infantum, T. dionisii and T. janseni. Given that visceral leishmaniasis is endemic in CG, special focus should be placed on L. infantum. Moreover, L. amazonensis and T. cruzi warrant attention, since these are zoonotic parasites responsible for human cases of tegumentary leishmaniasis and Chagas disease, respectively. In this respect, we discuss how bat communities may influence the Leishmania spp. transmission in endemic areas.
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Affiliation(s)
- Jaire Marinho Torres
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil
| | | | - Filipe Martins Santos
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil
| | - Nayara Yoshie Sano
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil
| | - Érica Verneque Martinez
- Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Av. Costa e Silva s/n - Pioneiros, Campo Grande, MS, Brazil
| | - Fernanda Moreira Alves
- Laboratório de Biologia de Tripanossomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, Manguinhos Rio de Janeiro 4365, RJ, Brazil
| | - Luiz Eduardo Roland Tavares
- Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Av. Costa e Silva s/n - Pioneiros, Campo Grande, MS, Brazil
| | - André Luiz Rodrigues Roque
- Laboratório de Biologia de Tripanossomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, Manguinhos Rio de Janeiro 4365, RJ, Brazil
| | - Ana Maria Jansen
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil; Laboratório de Biologia de Tripanossomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, Manguinhos Rio de Janeiro 4365, RJ, Brazil
| | - Heitor Miraglia Herrera
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil
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5
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de Almeida PR, Weber MN, Sonne L, Spilki FR. Aedes-borne orthoflavivirus infections in neotropical primates - Ecology, susceptibility, and pathogenesis. Exp Biol Med (Maywood) 2023; 248:2030-2038. [PMID: 38230520 PMCID: PMC10800122 DOI: 10.1177/15353702231220659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024] Open
Abstract
Arboviral diseases comprise a group of important infectious diseases imposing a heavy burden to public health in many locations of the world. Orthoflaviviruses are viruses belonging to the genus Orthoflavivirus; this genus includes some of the most relevant arboviruses to human health. Orthoflaviviruses can infect several different hosts, with some species being transmitted in cycles involving birds and anthropophilic mosquitoes and others transmitted between mammals and mostly Aedes sp. mosquitoes. Some of the most important sylvatic reservoirs of orthoflaviviruses are non-human primates (NHPs). Many flaviviruses that infect NHPs in nature have the potential to cause epidemics in humans, as has been observed in the cases of Orthoflavivirus denguei (dengue virus - DENV), Orthoflavivirus flavi (yellow fever virus - YFV), and Orthoflavivirus zikaense (Zika virus - ZIKV). In this minireview, we discuss important aspects regarding history, ecology involving NHP, distribution, disease outcome, and pathogenesis of these three major orthoflaviviruses that affect humans and NHP and relate this information to the potential of using NHP as experimental models. In addition, we suggest some orthoflaviviruses that could be better investigated, both in nature and in experimental studies, in light of the recent revolution in molecular biology.
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Affiliation(s)
- Paula Rodrigues de Almeida
- Molecular Microbiology Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS 93352-000, Brazil
| | - Matheus Nunes Weber
- Molecular Microbiology Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS 93352-000, Brazil
| | - Luciana Sonne
- Veterinary Pathology Sector, Veterinary Clinical Pathology Department, College of Veterinary Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS 91540-000, Brazil
| | - Fernando Rosado Spilki
- Molecular Microbiology Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS 93352-000, Brazil
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6
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Jones BD, Kaufman EJ, Peel AJ. Viral Co-Infection in Bats: A Systematic Review. Viruses 2023; 15:1860. [PMID: 37766267 PMCID: PMC10535902 DOI: 10.3390/v15091860] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Co-infection is an underappreciated phenomenon in contemporary disease ecology despite its ubiquity and importance in nature. Viruses, and other co-infecting agents, can interact in ways that shape host and agent communities, influence infection dynamics, and drive evolutionary selective pressures. Bats are host to many viruses of zoonotic potential and have drawn increasing attention in their role as wildlife reservoirs for human spillover. However, the role of co-infection in driving viral transmission dynamics within bats is unknown. Here, we systematically review peer-reviewed literature reporting viral co-infections in bats. We show that viral co-infection is common in bats but is often only reported as an incidental finding. Biases identified in our study database related to virus and host species were pre-existing in virus studies of bats generally. Studies largely speculated on the role co-infection plays in viral recombination and few investigated potential drivers or impacts of co-infection. Our results demonstrate that current knowledge of co-infection in bats is an ad hoc by-product of viral discovery efforts, and that future targeted co-infection studies will improve our understanding of the role it plays. Adding to the broader context of co-infection studies in other wildlife species, we anticipate our review will inform future co-infection study design and reporting in bats. Consideration of detection strategy, including potential viral targets, and appropriate analysis methodology will provide more robust results and facilitate further investigation of the role of viral co-infection in bat reservoirs.
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Affiliation(s)
- Brent D. Jones
- Centre for Planetary Health and Food Security, Griffith University, Nathan, QLD 4111, Australia
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
| | | | - Alison J. Peel
- Centre for Planetary Health and Food Security, Griffith University, Nathan, QLD 4111, Australia
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
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7
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Aguilar-Setién A, Salas-Rojas M, Gálvez-Romero G, Almazán-Marín C, Moreira-Soto A, Alfonso-Toledo J, Obregón-Morales C, García-Flores M, García-Baltazar A, Serra-Cobo J, López-Roig M, Reyes-Puma N, Piche-Ovares M, Romero-Vega M, Barrantes Murillo DF, Soto-Garita C, Alfaro-Alarcón A, Corrales-Aguilar E, López-Díaz O, Pontier D, Filippi-Codaccioni O, Pons JB, Duhayer J, Drexler JF. Experimental infection of Artibeus lituratus bats and no detection of Zika virus in neotropical bats from French Guiana, Peru, and Costa Rica suggests a limited role of bats in Zika transmission. PLoS Negl Trop Dis 2023; 17:e0010439. [PMID: 37486923 PMCID: PMC10399830 DOI: 10.1371/journal.pntd.0010439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 06/21/2023] [Indexed: 07/26/2023] Open
Abstract
Bats are important natural reservoir hosts of a diverse range of viruses that can be transmitted to humans and have been suggested to play an important role in the Zika virus (ZIKV) transmission cycle. However, the exact role of these animals as reservoirs for flaviviruses is still controversial. To further expand our understanding of the role of bats in the ZIKV transmission cycle in Latin America, we carried out an experimental infection in wild-caught Artibeus lituratus bats and sampled several free-living neotropical bats across three countries of the region. Experimental ZIKV infection was performed in wild-caught adult bats (4 females and 5 males). The most relevant findings were hemorrhages in the bladder, stomach and patagium. Significant histological findings included inflammatory infiltrate consisting of a predominance of neutrophils and lymphocytes, in addition to degeneration in the reproductive tract of males and females. This suggests that bat reproduction might be at some level affected by ZIKV. Leukopenia was also observed in some inoculated animals. Hemorrhages, genital alterations, and leukopenia are suggested to be caused by ZIKV; however, since these were wild-caught bats, we cannot exclude other agents. Detection of ZIKV by qPCR was observed at low concentrations in only two urine samples in two inoculated animals. All other animals and tissues tested were negative. Finally, no virus-neutralizing antibodies were found in any animal. To determine ZIKV infection in nature, the blood of a total of 2056 bats was sampled for ZIKV detection by qPCR. Most of the sampled individuals belonged to the genus Pteronotus sp. (23%), followed by the species Carollia sp. (17%), Anoura sp. (14%), and Molossus sp. (13.7%). No sample of any tested species was positive for ZIKV by qPCR. These results together suggest that bats are not efficient amplifiers or reservoirs of ZIKV and may not have an important role in ZIKV transmission dynamics.
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Affiliation(s)
- Alvaro Aguilar-Setién
- Instituto Mexicano del Seguro Social, Coordinación de Investigación Médica, Unidad de Investigación en Inmunología. Hospital de Pediatría, Mexico City , México
| | - Mónica Salas-Rojas
- Instituto Mexicano del Seguro Social, Coordinación de Investigación Médica, Unidad de Investigación en Inmunología. Hospital de Pediatría, Mexico City , México
| | - Guillermo Gálvez-Romero
- Instituto Mexicano del Seguro Social, Coordinación de Investigación Médica, Unidad de Investigación en Inmunología. Hospital de Pediatría, Mexico City , México
| | - Cenia Almazán-Marín
- Instituto Mexicano del Seguro Social, Coordinación de Investigación Médica, Unidad de Investigación en Inmunología. Hospital de Pediatría, Mexico City , México
| | - Andrés Moreira-Soto
- Institute of Virology, Charité -Universitätsmedizin Berlin, Helmut-Ruska-Haus, Berlin, Germany
| | - Jorge Alfonso-Toledo
- Instituto Mexicano del Seguro Social, Coordinación de Investigación Médica, Unidad de Investigación en Inmunología. Hospital de Pediatría, Mexico City , México
| | - Cirani Obregón-Morales
- Instituto Mexicano del Seguro Social, Coordinación de Investigación Médica, Unidad de Investigación en Inmunología. Hospital de Pediatría, Mexico City , México
| | - Martha García-Flores
- Instituto Mexicano del Seguro Social, Coordinación de Investigación Médica, Unidad de Investigación en Inmunología. Hospital de Pediatría, Mexico City , México
| | - Anahí García-Baltazar
- Instituto Mexicano del Seguro Social, Coordinación de Investigación Médica, Unidad de Investigación en Inmunología. Hospital de Pediatría, Mexico City , México
| | - Jordi Serra-Cobo
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- Institut de Recerca de la Biodiversitat (IRBIO). Facultat de Biolia. Universitat de Barcelona, Barcelona, Spain
| | - Marc López-Roig
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
- Institut de Recerca de la Biodiversitat (IRBIO). Facultat de Biolia. Universitat de Barcelona, Barcelona, Spain
| | - Nora Reyes-Puma
- Instituto de Medicina Tropical "Daniel Alcides Carrión" Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Marta Piche-Ovares
- Virology-CIET (Research Center for Tropical Disease), University of Costa Rica, San José, Costa Rica
- Department of Virology, School of Veterinary Medicine, National University, Heredia, Costa Rica
| | - Mario Romero-Vega
- Virology-CIET (Research Center for Tropical Disease), University of Costa Rica, San José, Costa Rica
| | | | - Claudio Soto-Garita
- Virology-CIET (Research Center for Tropical Disease), University of Costa Rica, San José, Costa Rica
| | - Alejandro Alfaro-Alarcón
- Department of Pathology, School of Veterinary Medicine, National University, Heredia, Costa Rica
| | - Eugenia Corrales-Aguilar
- Virology-CIET (Research Center for Tropical Disease), University of Costa Rica, San José, Costa Rica
| | - Osvaldo López-Díaz
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana Unidad Xochimilco, Mexico City, Mexico
| | - Dominique Pontier
- Université de Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR5558, Villeurbanne, France
| | - Ondine Filippi-Codaccioni
- Université de Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR5558, Villeurbanne, France
| | - Jean-Baptiste Pons
- Université de Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR5558, Villeurbanne, France
| | - Jeanne Duhayer
- Université de Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR5558, Villeurbanne, France
| | - Jan Felix Drexler
- Institute of Virology, Charité -Universitätsmedizin Berlin, Helmut-Ruska-Haus, Berlin, Germany
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8
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Franco Filho LC, Barata RR, Coelho MS, Cardoso JF, Lemos PDS, Dos Reis HS, Favacho JDFR, Faria NR, Nunes MRT. Genome sequencing of dengue virus serotype 4 in a bat brain sample (Platyrrhinus helleri) from the Brazilian Amazon. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2023; 109:105407. [PMID: 36764633 DOI: 10.1016/j.meegid.2023.105407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 01/06/2023] [Accepted: 01/25/2023] [Indexed: 02/11/2023]
Abstract
The existence of sylvatic transmission of dengue virus in communities of neotropical bats remains uncertain. In this work we present a near-complete genome of dengue virus serotype 4 obtained from the brain sample of a bat from Platyrrhinus helleri specie collected in the Brazilian Amazon region. The presence of the virus in the brain sample may indicate a possible tropism for the central nervous system in bats, which may justify negative results in previous studies that focused on analysis of other tissues, such as liver and spleen. Besides the duration of dengue virus circulation in the Americas (circa 40 years) may be too short for an implementation of a sylvatic dengue virus cycle. Our findings suggest that continued monitoring is needed to confirm with the neotropical bats could potentially act as a natural reservoir of dengue in the region.
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9
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Novel Chaphamaparvovirus in Insectivorous Molossus molossus Bats, from the Brazilian Amazon Region. Viruses 2023; 15:v15030606. [PMID: 36992315 PMCID: PMC10054343 DOI: 10.3390/v15030606] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/17/2023] [Accepted: 02/18/2023] [Indexed: 02/25/2023] Open
Abstract
Chaphamaparvovirus (CHPV) is a recently characterized genus of the Parvoviridae family whose members can infect different hosts, including bats, which constitute the second most diverse order of mammals and are described worldwide as important transmitters of zoonotic diseases. In this study, we identified a new CHPV in bat samples from the municipality of Santarém (Pará state, North Brazil). A total of 18 Molossus molossus bats were analyzed using viral metagenomics. In five animals, we identified CHPVs. These CHPV sequences presented the genome with a size ranging from 3797 to 4284 bp. Phylogenetic analysis-based nucleotide and amino acid sequences of the VP1 and NS1 regions showed that all CHPV sequences are monophyletic. They are also closely related to CHPV sequences previously identified in bats in southern and southeast Brazil. According to the International Committee on Taxonomy of Viruses (ICTV) classification criteria for this species (the CHPV NS1 gene region must have 85% identity to be classified in the same species), our sequences are likely a new specie within the genus Chaphamaparvovirus, since they have less than 80% identity with other CHPV described earlier in bats. We also make some phylogenetic considerations about the interaction between CHPV and their host. We suggest a high level of specificity of CPHV and its hosts. Thus, the findings contribute to improving information about the viral diversity of parvoviruses and show the importance of better investigating bats, considering that they harbor a variety of viruses that may favor zoonotic events.
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10
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García-Romero C, Carrillo Bilbao GA, Navarro JC, Martin-Solano S, Saegerman C. Arboviruses in Mammals in the Neotropics: A Systematic Review to Strengthen Epidemiological Monitoring Strategies and Conservation Medicine. Viruses 2023; 15:417. [PMID: 36851630 PMCID: PMC9962704 DOI: 10.3390/v15020417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Arthropod-borne viruses (arboviruses) are a diverse group of ribonucleic acid (RNA) viruses, with the exception of African swine fever virus, that are transmitted by hematophagous arthropods to a vertebrate host. They are the important cause of many diseases due to their ability to spread in different environments and their diversity of vectors. Currently, there is no information on the geographical distribution of the diseases because the routes of transmission and the mammals (wild or domestic) that act as potential hosts are poorly documented or unknown. We conducted a systematic review from 1967 to 2021 to identify the diversity of arboviruses, the areas, and taxonomic groups that have been monitored, the prevalence of positive records, and the associated risk factors. We identified forty-three arboviruses in nine mammalian orders distributed in eleven countries. In Brazil, the order primates harbor the highest number of arbovirus records. The three most recorded arboviruses were Venezuelan equine encephalitis, Saint Louis encephalitis and West Nile virus. Serum is the most used sample to obtain arbovirus records. Deforestation is identified as the main risk factor for arbovirus transmission between different species and environments (an odds ratio of 1.46 with a 95% confidence interval: 1.34-1.59). The results show an increase in the sampling effort over the years in the neotropical region. Despite the importance of arboviruses for public health, little is known about the interaction of arboviruses, their hosts, and vectors, as some countries and mammalian orders have not yet been monitored. Long-term and constant monitoring allows focusing research on the analysis of the interrelationships and characteristics of each component animal, human, and their environment to understand the dynamics of the diseases and guide epidemiological surveillance and vector control programs. The biodiversity of the Neotropics should be considered to support epidemiological monitoring strategies.
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Affiliation(s)
- Cinthya García-Romero
- Maestría en Biodiversidad y Cambio Climático, Facultad de Ciencias del Medio Ambiente, Universidad Tecnológica Indoamérica, Quito 170521, Ecuador
- Instituto de Investigación en Zoonosis (CIZ), Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Gabriel Alberto Carrillo Bilbao
- Instituto de Investigación en Zoonosis (CIZ), Universidad Central del Ecuador, Quito 170521, Ecuador
- Research Unit of Epidemiology and Risk Analysis Applied to Veterinary Sciences (UREAR-ULiege), Fundamental and Applied Research for Animal and Health (FARAH) Center, Department of Infections and Parasitic Diseases, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium
- Facultad de Filosofía, Letras y Ciencias de la Educación, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Juan-Carlos Navarro
- Grupo de Investigación en Enfermedades Emergentes, Ecoepidemiología y Biodiversidad, Facultad de Ciencias de la Salud, Universidad Internacional SEK, Quito 170521, Ecuador
| | - Sarah Martin-Solano
- Instituto de Investigación en Zoonosis (CIZ), Universidad Central del Ecuador, Quito 170521, Ecuador
- Grupo de Investigación en Sanidad Animal y Humana (GISAH), Carrera Ingeniería en Biotecnología, Departamento de Ciencias de la Vida y la Agricultura, Universidad de las Fuerzas Armadas—ESPE, P.O. Box 171-5-231B, Sangolquí 171103, Ecuador
| | - Claude Saegerman
- Research Unit of Epidemiology and Risk Analysis Applied to Veterinary Sciences (UREAR-ULiege), Fundamental and Applied Research for Animal and Health (FARAH) Center, Department of Infections and Parasitic Diseases, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium
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11
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Piche-Ovares M, Romero-Vega M, Vargas-González D, Murillo DFB, Soto-Garita C, Francisco-Llamas J, Alfaro-Alarcón A, Jiménez C, Corrales-Aguilar E. Serosurvey in Two Dengue Hyperendemic Areas of Costa Rica Evidence Active Circulation of WNV and SLEV in Peri-Domestic and Domestic Animals and in Humans. Pathogens 2022; 12:7. [PMID: 36678356 PMCID: PMC9863573 DOI: 10.3390/pathogens12010007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/05/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Costa Rica harbors several flaviviruses, including Dengue (DENV), Zika (ZIKV), West Nile virus (WNV), and Saint Louis encephalitis virus (SLEV). While DENV and ZIKV are hyperendemic, previous research indicates restricted circulation of SLEV and WNV in animals. SLEV and WNV seroprevalence and high transmission areas have not yet been measured. To determine the extents of putative WNV and SLEV circulation, we sampled peri-domestic and domestic animals, humans, and mosquitoes in rural households located in two DENV and ZIKV hyperendemic regions during the rainy and dry seasons of 2017-2018 and conducted plaque reduction neutralization test assay for serology (PRNT) and RT-PCR for virus detection. In Cuajiniquil, serological evidence of WNV and SLEV was found in equines, humans, chickens, and wild birds. Additionally, five seroconversion events were recorded for WNV (2 equines), SLEV (1 human), and DENV-1 (2 humans). In Talamanca, WNV was not found, but serological evidence of SLEV circulation was recorded in equines, humans, and wild birds. Even though no active viral infection was detected, the seroconversion events recorded here indicate recent circulation of SLEV and WNV in these two regions. This study thus provides clear-cut evidence for WNV and SLEV presence in these areas, and therefore, they should be considered in arboviruses differential diagnostics and future infection prevention campaigns.
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Affiliation(s)
- Marta Piche-Ovares
- Virology-CIET (Research Center for Tropical Diseases), Universidad de Costa Rica, San José 11501-2060, Costa Rica
- PIET (Tropical Disease Research Program), Department of Virology, School of Veterinary Medicine, Universidad Nacional, Heredia 86-3000, Costa Rica
| | - Mario Romero-Vega
- Department of Pathology, School of Veterinary Medicine, Universidad Nacional, Heredia 86-3000, Costa Rica
- Laboratorio de Investigación en Vectores-CIET (Research Center for Tropical Disease), Universidad de Costa Rica, San José 11501-2060, Costa Rica
| | - Diana Vargas-González
- PIET (Tropical Disease Research Program), Department of Virology, School of Veterinary Medicine, Universidad Nacional, Heredia 86-3000, Costa Rica
| | | | - Claudio Soto-Garita
- Virology-CIET (Research Center for Tropical Diseases), Universidad de Costa Rica, San José 11501-2060, Costa Rica
| | | | - Alejandro Alfaro-Alarcón
- Department of Pathology, School of Veterinary Medicine, Universidad Nacional, Heredia 86-3000, Costa Rica
| | - Carlos Jiménez
- PIET (Tropical Disease Research Program), Department of Virology, School of Veterinary Medicine, Universidad Nacional, Heredia 86-3000, Costa Rica
| | - Eugenia Corrales-Aguilar
- Virology-CIET (Research Center for Tropical Diseases), Universidad de Costa Rica, San José 11501-2060, Costa Rica
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12
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Diptyanusa A, Herini ES, Indarjulianto S, Satoto TBT. Estimation of Japanese encephalitis virus infection prevalence in mosquitoes and bats through nationwide sentinel surveillance in Indonesia. PLoS One 2022; 17:e0275647. [PMID: 36223381 PMCID: PMC9555671 DOI: 10.1371/journal.pone.0275647] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 09/11/2022] [Indexed: 11/26/2022] Open
Abstract
Indonesia belongs to endemic areas of Japanese encephalitis (JE), yet data regarding the true risk of disease transmission are lacking. While many seroprevalence studies reported its classic enzootic transmission, data related to the role of bats in the transmission of JE virus are limited. This current study aimed to identify the potential role of bats in the local transmission of the JE virus to aid the ongoing active case surveillance in Indonesia, in order to estimate the transmission risk. Mosquitoes and bats were collected from 11 provinces in Indonesia. The detection of the JE virus used polymerase chain reaction (PCR). Maps were generated to analyze the JE virus distribution pattern. Logistic regression analysis was done to identify risk factors of JE virus transmission. JE virus was detected in 1.4% (7/483) of mosquito pools and in 2.0% (68/3,322) of bat samples. Mosquito species positive for JE virus were Culex tritaeniorhynchus and Cx. vishnui, whereas JE-positive bats belonged to the genera Cynopterus, Eonycteris, Hipposideros, Kerivoula, Macroglossus, Pipistrellus, Rousettus, Scotophilus and Thoopterus. JE-positive mosquitoes were collected at the same sites as the JE-positive bats. Collection site nearby human dwellings (AOR: 2.02; P = 0.009) and relative humidity of >80% (AOR: 2.40; P = 0.001) were identified as independent risk factors for JE virus transmission. The findings of the current study highlighted the likely ongoing risk of JE virus transmission in many provinces in Indonesia, and its potential implications on human health.
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Affiliation(s)
- Ajib Diptyanusa
- Doctoral Study Program of Health and Medical Sciences, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
- World Health Organization Indonesia Country Office, Jakarta, Indonesia
| | - Elisabeth Siti Herini
- Department of Child Health, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Soedarmanto Indarjulianto
- Department of Internal Medicine, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Tri Baskoro Tunggul Satoto
- Department of Parasitology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
- * E-mail:
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13
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Opportunities and Limitations of Molecular Methods for Studying Bat-Associated Pathogens. Microorganisms 2022; 10:microorganisms10091875. [PMID: 36144476 PMCID: PMC9502413 DOI: 10.3390/microorganisms10091875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 01/03/2023] Open
Abstract
Bats have been identified as reservoirs of zoonotic and potentially zoonotic pathogens. Significant progress was made in the field of molecular biology with regard to infectious diseases, especially those that infect more than one species. Molecular methods, sequencing and bioinformatics have recently become irreplaceable tools in emerging infectious diseases research and even outbreak prediction. Modern methods in the molecular biology field have shed more light on the unique relationship between bats and viruses. Here we provide readers with a concise summary of the potential and limitations of molecular methods for studying the ecology of bats and bat-related pathogens and microorganisms.
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14
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Sanchez-Fernandez C, Bolatti EM, Culasso ACA, Chouhy D, Kowalewski MM, Stella EJ, Schurr TG, Rinas MA, Liotta DJ, Campos RH, Giri AA, Badano I. Identification and evolutionary analysis of papillomavirus sequences in New World monkeys (genera Sapajus and Alouatta) from Argentina. Arch Virol 2022; 167:1257-1268. [PMID: 35353206 DOI: 10.1007/s00705-022-05420-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 02/03/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVE In this study, we investigated the occurrence of papillomavirus (PV) infection in non-human primates (NHPs) in northeastern Argentina. We also explored their evolutionary history and evaluated the co-speciation hypothesis in the context of primate evolution. METHODS We obtained DNA samples from 57 individuals belonging to wild and captive populations of Alouatta caraya, Sapajus nigritus, and Sapajus cay. We assessed PV infection by PCR amplification with the CUT primer system and sequencing of 337 bp (112 amino acids) of the L1 gene. The viral sequences were analyzed by phylogenetic and Bayesian coalescence methods to estimate the time to the most common recent ancestor (tMRCA) using BEAST, v1.4.8 software. We evaluated viral/host tree congruence with TreeMap v3.0. RESULTS We identified two novel putative PV sequences of the genus Gammapapillomavirus in Sapajus spp. and Alouatta caraya (SPV1 and AcPV1, respectively). The tMRCA of SPV1 was estimated to be 11,941,682 years before present (ybp), and that of AcPV1 was 46,638,071 ybp, both before the coalescence times of their hosts (6.4 million years ago [MYA] and 6.8 MYA, respectively). Based on the comparison of primate and viral phylogenies, we found that the PV tree was no more congruent with the host tree than a random tree would be (P > 0.05), thus allowing us to reject the model of virus-host coevolution. CONCLUSION This study presents the first evidence of PV infection in platyrrhine species from Argentina, expands the range of described hosts for these viruses, and suggests new scenarios for their origin and dispersal.
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Affiliation(s)
- C Sanchez-Fernandez
- Laboratorio de Biología Molecular Aplicada, Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Argentina. .,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
| | - E M Bolatti
- Laboratorio de Virología Humana, Instituto de Biología Molecular y Celular de Rosario, CONICET/UNR, Rosario, Argentina.,Área Virología, Departamento de Microbiología, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - A C A Culasso
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - D Chouhy
- Laboratorio de Virología Humana, Instituto de Biología Molecular y Celular de Rosario, CONICET/UNR, Rosario, Argentina.,Área Virología, Departamento de Microbiología, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - M M Kowalewski
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Estación Biológica Corrientes (EBCo-MACN-CONICET), Corrientes, Argentina
| | - E J Stella
- Laboratorio de Virología Humana, Instituto de Biología Molecular y Celular de Rosario, CONICET/UNR, Rosario, Argentina
| | - T G Schurr
- Laboratory of Molecular Anthropology, Department of Anthropology, University of Pennsylvania, Philadelphia, 19104, USA
| | - M A Rinas
- Ministerio de Ecología y Recursos Naturales Renovables, Posadas, Misiones, Argentina
| | - D J Liotta
- Laboratorio de Biología Molecular Aplicada, Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Argentina.,Instituto Nacional de Medicina Tropical, ANLIS, Pto. Iguazú, Misiones, Argentina
| | - R H Campos
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.,Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - A A Giri
- Laboratorio de Virología Humana, Instituto de Biología Molecular y Celular de Rosario, CONICET/UNR, Rosario, Argentina.,Área Virología, Departamento de Microbiología, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - I Badano
- Laboratorio de Biología Molecular Aplicada, Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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15
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Serological Positivity against Selected Flaviviruses and Alphaviruses in Free-Ranging Bats and Birds from Costa Rica Evidence Exposure to Arboviruses Seldom Reported Locally in Humans. Viruses 2022; 14:v14010093. [PMID: 35062297 PMCID: PMC8780000 DOI: 10.3390/v14010093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/06/2021] [Accepted: 12/28/2021] [Indexed: 12/21/2022] Open
Abstract
Arboviruses have two ecological transmission cycles: sylvatic and urban. For some, the sylvatic cycle has not been thoroughly described in America. To study the role of wildlife in a putative sylvatic cycle, we sampled free-ranging bats and birds in two arbovirus endemic locations and analyzed them using molecular, serological, and histological methods. No current infection was detected, and no significant arbovirus-associated histological changes were observed. Neutralizing antibodies were detected against selected arboviruses. In bats, positivity in 34.95% for DENV-1, 16.26% for DENV-2, 5.69% for DENV-3, 4.87% for DENV-4, 2.43% for WNV, 4.87% for SLEV, 0.81% for YFV, 7.31% for EEEV, and 0.81% for VEEV was found. Antibodies against ZIKV were not detected. In birds, PRNT results were positive against WNV in 0.80%, SLEV in 5.64%, EEEV in 8.4%, and VEEV in 5.63%. An additional retrospective PRNT analysis was performed using bat samples from three additional DENV endemic sites resulting in a 3.27% prevalence for WNV and 1.63% for SLEV. Interestingly, one sample resulted unequivocally WNV positive confirmed by serum titration. These results suggest that free-ranging bats and birds are exposed to not currently reported hyperendemic-human infecting Flavivirus and Alphavirus; however, their role as reservoirs or hosts is still undetermined.
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16
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Gilkey PL, Ortiz DL, Kowalo T, Troyo A, Sirot LK. Host-Feeding Patterns of the Mosquito Assemblage at Lomas Barbudal Biological Reserve, Guanacaste, Costa Rica. JOURNAL OF MEDICAL ENTOMOLOGY 2021; 58:2058-2066. [PMID: 34224564 DOI: 10.1093/jme/tjab113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Indexed: 06/13/2023]
Abstract
Mosquito-borne pathogens have spread throughout tropical regions of the Western Hemisphere causing increased burden of disease in the region. Outbreaks of dengue fever, yellow fever, chikungunya, West Nile, and Zika have occurred over the past several years. Mosquito blood-feeding patterns need to be assayed to assist in determining which vertebrates could act as hosts of these mosquito-borne pathogens and which mosquito species could act as vectors. We conducted bloodmeal analyses of mosquitoes collected at Lomas Barbudal Biological Reserve, a dry tropical forest reserve in Costa Rica. Mosquitoes were collected using backpack aspirators and light, gravid, and resting traps, and then identified morphologically. Blood-fed mosquitoes underwent DNA extraction, PCR amplification, and sequencing of the vertebrate cytochrome b and cytochrome c oxidase 1 genes to identify vertebrate bloodmeal hosts. Several mosquitoes known to vector pathogens were found including Culex (Melanoconion) erraticus Dyar & Knab (Diptera: Culicidae), Cx. (Mel.) pedroi Sirivanakarn & Belkin, Aedes (Stegomyia) albopictus Skuse, Ae. (Ochlerotatus) scapularis Rondani, Ae. (Och.) serratus Theobald, and Ae. (Och.) taeniorhynchus Wiedemann. The most common bloodmeal hosts were basilisk lizards (Basiliscus vittatus) Wiegmann (Squamata: Corytophanidae) in Culex (Linnaeus) species and white-tailed deer (Odocoileus virginianus) Zimmermann (Artiodactyla: Cervidae) in Aedes (Meigen) species. These results show the diversity of mosquito species in a tropical dry deciduous forest and identify associations between mosquito vectors and potential pathogen reservoir hosts. Our study highlights the importance of understanding interactions between vector species and their hosts that could serve as predictors for the potential emergence or resurgence of mosquito-borne pathogens in Costa Rica.
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Affiliation(s)
- Patrick L Gilkey
- Department of Biology, The College of Wooster, Wooster, OH, USA
- School of Biological, Environmental, & Earth Sciences, The University of Southern Mississippi, Hattiesburg, MS, USA
| | - Diana L Ortiz
- Biology Program, Westminster College, New Wilmington, PA, USA
| | - Tia Kowalo
- Environmental Science Program, Westminster College, New Wilmington, PA, USA
| | - Adriana Troyo
- Laboratorio de Investigación en Vectores (LIVE), Centro de Investigación en Enfermedades Tropicales (CIET), Universidad de Costa Rica, San José, Costa Rica
| | - Laura K Sirot
- Department of Biology, The College of Wooster, Wooster, OH, USA
- Departamento de Parasitología, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
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17
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Using Data Mining and Network Analysis to Infer Arboviral Dynamics: The Case of Mosquito-Borne Flaviviruses Reported in Mexico. INSECTS 2021; 12:insects12050398. [PMID: 33946977 PMCID: PMC8146811 DOI: 10.3390/insects12050398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 11/17/2022]
Abstract
Given the significant impact of mosquito-borne flaviviruses (MBFVs) on both human and animal health, predicting their dynamics and understanding their transmission cycle is of the utmost importance. Usually, predictions about the distribution of priority pathogens, such as Dengue, Yellow fever, West Nile Virus and St. Louis encephalitis, relate abiotic elements to simple biotic components, such as a single causal agent. Furthermore, focusing on single pathogens neglects the possibility of interactions and the existence of common elements in the transmission cycles of multiple pathogens. A necessary, but not sufficient, condition that a mosquito be a vector of a MBFV is that it co-occurs with hosts of the pathogen. We therefore use a recently developed modeling framework, based on co-occurrence data, to infer potential biotic interactions between those mosquito and mammal species which have previously been identified as vectors or confirmed positives of at least one of the considered MBFVs. We thus create models for predicting the relative importance of mosquito species as potential vectors for each pathogen, and also for all pathogens together, using the known vectors to validate the models. We infer that various mosquito species are likely to be significant vectors, even though they have not currently been identified as such, and are likely to harbor multiple pathogens, again validating the predictions with known results. Besides the above "niche-based" viewpoint we also consider an assemblage-based analysis, wherein we use a community-identification algorithm to identify those mosquito and/or mammal species that form assemblages by dint of their significant degree of co-occurrence. The most cohesive assemblage includes important primary vectors, such as A. aegypti, A. albopictus, C. quinquefasciatus, C. pipiens and mammals with abundant populations that are well-adapted to human environments, such as the white-tailed deer (Odocoileus virginianus), peccary (Tayassu pecari), opossum (Didelphis marsupialis) and bats (Artibeus lituratus and Sturnira lilium). Our results suggest that this assemblage has an important role in the transmission dynamics of this viral group viewed as a complex multi-pathogen-vector-host system. By including biotic risk factors our approach also modifies the geographical risk profiles of the spatial distribution of MBFVs in Mexico relative to a consideration of only abiotic niche variables.
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18
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Calderón A, Guzmán C, Oviedo-Socarras T, Mattar S, Rodríguez V, Castañeda V, Moraes Figueiredo LT. Two Cases of Natural Infection of Dengue-2 Virus in Bats in the Colombian Caribbean. Trop Med Infect Dis 2021; 6:tropicalmed6010035. [PMID: 33809400 PMCID: PMC8005977 DOI: 10.3390/tropicalmed6010035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/03/2021] [Accepted: 02/08/2021] [Indexed: 11/16/2022] Open
Abstract
Dengue, a mosquito-borne zoonotic disease, is the most common vector-borne disease in tropical and subtropical areas. In this study, we aim to demonstrate biological evidence of dengue virus infection in bats. A cross-sectional study was carried out in the departments of Cordoba and Sucre, Colombia. A total of 286 bats were captured following the ethical protocols of animal experimentation. The specimens were identified and euthanized using a pharmacological treatment with atropine, acepromazine and sodium pentobarbital. Duplicate samples of brain, heart, lung, spleen, liver, and kidney were collected with one set stored in Trizol and the other stored in 10% buffered formalin for histopathological and immunohistochemical analysis using polyclonal antibodies. Brain samples from lactating mice with an intracranial inoculation of DENV-2 were used as a positive control. As a negative control, lactating mouse brains without inoculation and bats brains negative for RT-PCR were included. Tissue sections from each specimen of bat without conjugate were used as staining control. In a specimen of Carollia perspicillata captured in Ayapel (Cordoba) and Phylostomus discolor captured in San Carlos (Cordoba), dengue virus was detected, and sequences were matched to DENV serotype 2. In bats RT-PCR positive for dengue, lesions compatible with viral infections, and the presence of antigens in tissues were observed. Molecular findings, pathological lesions, and detection of antigens in tissues could demonstrate viral DENV-2 replication and may correspond to natural infection in bats. Additional studies are needed to elucidate the exact role of these species in dengue epidemics.
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Affiliation(s)
- Alfonso Calderón
- Faculty of Veterinary Medicine and Animal Production Husbandry, Institute for Biological Research in the Tropics (IIBT), University of Cordoba, Monteria 230002, Cordoba, Colombia;
| | - Camilo Guzmán
- Department of Pharmacy, Faculty of Health Sciences, Institute for Biological Research in the Tropics (IIBT), University of Cordoba, Monteria 230002, Cordoba, Colombia;
| | - Teresa Oviedo-Socarras
- Research Group on Tropical Animal Production (GIPAT), Faculty of Veterinary Medicine and Animal Production Husbandry, University of Cordoba, Monteria 230002, Cordoba, Colombia;
| | - Salim Mattar
- Faculty of Veterinary Medicine and Animal Production Husbandry, Institute for Biological Research in the Tropics (IIBT), University of Cordoba, Monteria 230002, Cordoba, Colombia;
- Correspondence: or
| | - Virginia Rodríguez
- Bacteriological Program, Microbiological and Biomedical Research Group of Cordoba (GIMBIC), Faculty of Health Sciences, University of Cordoba, Monteria 230002, Cordoba, Colombia;
| | - Víctor Castañeda
- Veterinary Diagnostic Laboratories Network, Colombian Agricultural Institute, Cerete 230550, Cordoba, Colombia;
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19
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Misconceptions and misinformation about bats and viruses. Int J Infect Dis 2021; 105:606-607. [PMID: 33662601 PMCID: PMC7995237 DOI: 10.1016/j.ijid.2021.02.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/08/2021] [Accepted: 02/24/2021] [Indexed: 11/23/2022] Open
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20
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Gwee SXW, St John AL, Gray GC, Pang J. Animals as potential reservoirs for dengue transmission: A systematic review. One Health 2021; 12:100216. [PMID: 33598525 PMCID: PMC7868715 DOI: 10.1016/j.onehlt.2021.100216] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 12/21/2022] Open
Abstract
Dengue is a rapidly spreading mosquito-borne flavivirus infection that is prevalent in tropical and sub-tropical regions. Humans are known to be the main reservoir host maintaining the epidemic cycles of dengue but it is unclear if dengue virus is also maintained in a similar enzootic cycle. The systematic review was conducted in accordance to Cochrane's PRISMA recommendations. A search was done on PubMed, EMBASE, Scopus and Cochrane Library. Key data on animal dengue positivity was extracted and classified according to animal type and diagnostic modes. Of the 3818 articles identified, 56 articles were used in this review. A total of 16,333 animals were tested, 1817 of which were positive for dengue virus by RT-PCR or serology. Dengue positivity was detected in bats (10.1%), non-human primates (27.3%), birds (11%), bovid (4.1%), dogs (1.6%), horses (5.1%), pigs (34.1%), rodents (3.5%), marsupials (13%) and other small animals (7.3%). While majority of dengue positivity via serology suggests potential enzootic transmission, but regular dengue virus spillback cannot be excluded. With the exception of bats, acute infection among animals is limited. Further investigation on animals is critically required to better understand their role as potential reservoir in dengue transmission.
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Affiliation(s)
- Sylvia Xiao Wei Gwee
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore.,Centre of Infectious Disease Epidemiology and Research, National University of Singapore, Singapore
| | - Ashley L St John
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore.,Department of Microbiology and Immunology, National University of Singapore, Singapore.,Pathology Department, Duke University, USA.,SingHealth Duke-NUS Global Health University, Singapore
| | - Gregory C Gray
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore.,SingHealth Duke-NUS Global Health University, Singapore.,Division of Infectious Diseases, School of Medicine, Duke University, USA.,Global Health Institute, Duke University, USA.,Duke Kunshan University, China
| | - Junxiong Pang
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore.,Centre of Infectious Disease Epidemiology and Research, National University of Singapore, Singapore
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21
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Hernández-Aguilar I, Lorenzo C, Santos-Moreno A, Navarrete Gutiérrez D, Naranjo EJ. Current Knowledge and Ecological and Human Impact Variables Involved in the Distribution of the Dengue Virus by Bats in the Americas. Vector Borne Zoonotic Dis 2021; 21:217-231. [PMID: 33439764 DOI: 10.1089/vbz.2020.2696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Dengue fever, caused by the dengue virus (DENV), is one of the most important reemerging viral diseases transmitted by arthropods worldwide. DENV is maintained in nature in two transmission cycles: urban and sylvatic. The latter has only been recorded in Africa and Asia and involves nonhuman primates as natural hosts, although it has been suggested that other mammals may play a secondary role as potential reservoir host, including bats. The objective of this article is to review the current state of knowledge about DENV-positive bats in the Americas and to determine what ecological and human impact variables could favor DENV infection in bats. We performed a search of published studies on natural and experimental DENV infection in bats. From 1952 to 2019, 14 studies have been carried out (71.4% in the last decade) examining DENV infection in bats in seven countries of the Americas. DENV infection was examined in 1884 bats of 63 species and DENV was detected in 19 of these species. Clench's model estimated that more than 75 species could be carriers of DENV; therefore, considering that at least 350 species of bats are distributed in the Americas, to detect 95% of the DENV-bearing species, it would be necessary to examine about 10,206 bats of ∼287 species that have not been analyzed until 2019. The species with the highest number of positive cases were Molossus sinaloae and Artibeus jamaicensis. Species, colony size, mean annual temperature, mean annual precipitation, human population size, and bat collection site (site inhabited by humans, vegetation cover, and caves) contributed to explain the variation in DENV detection in bats in the Americas. These results provide evidence on the exposure of bats to DENV in different geographic areas of the Americas and a bat sylvatic transmission cycle is very likely to be occurring, where bats may be either accidental hosts, dead-end hosts, or potential reservoir hosts for DENV.
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Affiliation(s)
- Itandehui Hernández-Aguilar
- Departamento de Conservación de la Biodiversidad. El Colegio de la Frontera Sur, Unidad San Cristóbal, San Cristóbal de Las Casas, México
| | - Consuelo Lorenzo
- Departamento de Conservación de la Biodiversidad. El Colegio de la Frontera Sur, Unidad San Cristóbal, San Cristóbal de Las Casas, México
| | - Antonio Santos-Moreno
- Laboratorio de Ecología Animal, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Oaxaca, Instituto Politécnico Nacional, Santa Cruz Xoxocotlán, México
| | - Darío Navarrete Gutiérrez
- Departamento de Observación y Estudio de la Tierra, la Atmósfera y el Océano, El Colegio de la Frontera Sur, Unidad San Cristóbal, San Cristóbal de Las Casas, México
| | - Eduardo J Naranjo
- Departamento de Conservación de la Biodiversidad. El Colegio de la Frontera Sur, Unidad San Cristóbal, San Cristóbal de Las Casas, México
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22
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Bonilla-Aldana DK, Jimenez-Diaz SD, Arango-Duque JS, Aguirre-Florez M, Balbin-Ramon GJ, Paniz-Mondolfi A, Suárez JA, Pachar MR, Perez-Garcia LA, Delgado-Noguera LA, Sierra MA, Muñoz-Lara F, Zambrano LI, Rodriguez-Morales AJ. Bats in ecosystems and their Wide spectrum of viral infectious potential threats: SARS-CoV-2 and other emerging viruses. Int J Infect Dis 2021; 102:87-96. [PMID: 32829048 PMCID: PMC7440229 DOI: 10.1016/j.ijid.2020.08.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/08/2020] [Accepted: 08/16/2020] [Indexed: 12/15/2022] Open
Abstract
Bats have populated earth for approximately 52 million years, serving as natural reservoirs for a variety of viruses through the course of evolution. Transmission of highly pathogenic viruses from bats has been suspected or linked to a spectrum of potential emerging infectious diseases in humans and animals worldwide. Examples of such viruses include Marburg, Ebolavirus, Nipah, Hendra, Influenza A, Dengue, Equine Encephalitis viruses, Lyssaviruses, Madariaga and Coronaviruses, involving the now pandemic Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). Herein, we provide a narrative review focused in selected emerging viral infectious diseases that have been reported from bats.
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Affiliation(s)
- D Katterine Bonilla-Aldana
- Semillero de Investigación en Zoonosis (SIZOO), Grupo de Investigación BIOECOS, Fundación Universitaria Autónoma de las Américas, Sede Pereira, Pereira, Risaralda, Colombia; Public Health and Infection Research Group and Incubator, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, Colombia
| | - S Daniela Jimenez-Diaz
- Semillero de Investigación en Zoonosis (SIZOO), Grupo de Investigación BIOECOS, Fundación Universitaria Autónoma de las Américas, Sede Pereira, Pereira, Risaralda, Colombia
| | | | - Mateo Aguirre-Florez
- Public Health and Infection Research Group and Incubator, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, Colombia
| | - Graciela J Balbin-Ramon
- Master in Clinical Epidemiology and Biostatistics, Universidad Cientifica del Sur, Lima, Peru; Hospital de Emergencias Jose Casimiro Ulloa, Lima, Peru
| | - Alberto Paniz-Mondolfi
- Laboratory of Medical Microbiology, Department of Pathology, Molecular and Cell-based Medicine, The Mount Sinai Hospital-Icahn School of Medicine at Mount Sinai, New York, USA; Laboratorio de Señalización Celular y Bioquímica de Parásitos, Instituto de Estudios Avanzados (IDEA), Caracas, Caracas, Venezuela; Academia Nacional de Medicina, Caracas, Venezuela
| | - Jose Antonio Suárez
- Investigador SNI Senacyt Panamá, Clinical Research Deparment, Instituto Conmemorativo Gorgas de Estudios de la Salud, Panama City, Panama
| | - Monica R Pachar
- Medicine Department-Infectious Diseases Service, Hospital Santo Tomas, Panama City, Panama
| | - Luis A Perez-Garcia
- Instituto de Investigaciones Biomédicas IDB/Incubadora Venezolana de la Ciencia, Cabudare, Edo. Lara, Venezuela
| | - Lourdes A Delgado-Noguera
- Instituto de Investigaciones Biomédicas IDB/Incubadora Venezolana de la Ciencia, Cabudare, Edo. Lara, Venezuela
| | - Manuel Antonio Sierra
- Facultad de Ciencias Médicas, UNAH, Tegucigalpa, Honduras; Facultad de Ciencias de la Salud, Universidad Tecnológica Centroamericana, Tegucigalpa, Honduras
| | - Fausto Muñoz-Lara
- Departamento de Medicina Interna, Hospital Escuela, Tegucigalpa, Honduras; Departamento de Medicina Interna, Facultad de Ciencias Médicas, UNAH, Tegucigalpa, Honduras
| | - Lysien I Zambrano
- Departments of Physiological and Morphological Sciences, School of Medical Sciences, Universidad Nacional Autónoma de Honduras (UNAH), Tegucigalpa, Honduras
| | - Alfonso J Rodriguez-Morales
- Public Health and Infection Research Group and Incubator, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Risaralda, Colombia; Master in Clinical Epidemiology and Biostatistics, Universidad Cientifica del Sur, Lima, Peru; Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Américas, Pereira, Risaralda, Colombia.
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23
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Affiliation(s)
- Marcione B. De Oliveira
- Graduate Program in Zoology, National Museum, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista s/n, São Cristóvão, Rio de Janeiro, RJ, 20940-040, Brazil
| | - Cibele R. Bonvicino
- Graduate Program in Zoology, National Museum, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista s/n, São Cristóvão, Rio de Janeiro, RJ, 20940-040, Brazil
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24
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Puig-Montserrat X, Flaquer C, Gómez-Aguilera N, Burgas A, Mas M, Tuneu C, Marquès E, López-Baucells A. Bats actively prey on mosquitoes and other deleterious insects in rice paddies: Potential impact on human health and agriculture. PEST MANAGEMENT SCIENCE 2020; 76:3759-3769. [PMID: 32431084 DOI: 10.1002/ps.5925] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 04/28/2020] [Accepted: 05/20/2020] [Indexed: 05/11/2023]
Abstract
BACKGROUND The fact that bats suppress agricultural pests has been measured for some particular dyads of predator and prey species in both economic and food security terms. The recent emergence of new molecular techniques allows for more precise screenings of bat's diet than the traditional visual identification systems and provides further evidence that bats consume an ample array of agricultural pest species. The main focus of the regulatory services that bats provide in agroecosystems has been on crop pests that cause yield losses. Rice paddies constitute a particular agronomic system with specific challenges, not only related to crop productivity but also to human health. Dipteran density in such ecosystems poses a serious threat to human wellbeing and hinders crop production. Mosquitoes cause direct harm to human populations, transmitting a number of infectious diseases. Non-biting midges (Chironomidae) can consume and weaken rice seedlings and can cause major yield losses. RESULTS Mosquito populations and bat activity were assessed in rice paddies of Montgrí, Medes i Baix Ter Natural Park (NE Iberian Peninsula). Molecular analyses of bats faeces (6-weekly samples of 15 faeces each between mid-August and September) proved the presence of both mosquitoes and nonbiting midges in all diet samples. Furthermore, bat activity at the sampling locations was related to adult mosquito density. CONCLUSION Our results suggest that bats actively exploit the emergence of adult mosquitoes and further prove that they prey on mosquitoes, nonbiting midges and other deleterious insects. Promoting the presence of bats next to human settlements in such agroecosystems may constitute a biological control system with direct impact on both human health and crop yield. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xavier Puig-Montserrat
- Natural Sciences Museum of Granollers, Granollers, Spain
- Galanthus Association, Celrà, Spain
| | - Carles Flaquer
- Natural Sciences Museum of Granollers, Granollers, Spain
| | | | | | - Maria Mas
- Natural Sciences Museum of Granollers, Granollers, Spain
| | - Carme Tuneu
- Natural Sciences Museum of Granollers, Granollers, Spain
| | - Eduard Marquès
- Servei de Control de Mosquits de la Badia de Roses i del Baix Ter, Castelló d'Empúries, Spain
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25
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Becker DJ, Seifert SN, Carlson CJ. Beyond Infection: Integrating Competence into Reservoir Host Prediction. Trends Ecol Evol 2020; 35:1062-1065. [PMID: 32921517 PMCID: PMC7483075 DOI: 10.1016/j.tree.2020.08.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 08/18/2020] [Accepted: 08/25/2020] [Indexed: 12/02/2022]
Abstract
Most efforts to predict novel reservoirs of zoonotic pathogens use information about host exposure and infection rather than competence, defined as the ability to transmit pathogens. Better obtaining and integrating competence data into statistical models as covariates, as the response variable, and through postmodel validation should improve predictive research.
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Affiliation(s)
- Daniel J Becker
- Department of Biology, Indiana University, Bloomington, IN, USA.
| | - Stephanie N Seifert
- Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Colin J Carlson
- Center for Global Health Science and Security, Georgetown University Medical Center, Washington, D.C., USA
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26
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Hernández-Lara C, Carbó-Ramírez P, Santiago-Alarcon D. Effects of land use change (rural-urban) on the diversity and epizootiological parameters of avian Haemosporida in a widespread neotropical bird. Acta Trop 2020; 209:105542. [PMID: 32470331 DOI: 10.1016/j.actatropica.2020.105542] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/16/2020] [Accepted: 05/13/2020] [Indexed: 11/29/2022]
Abstract
Transformation of natural environments for livestock, agriculture and human settlements modifies the diversity of organisms, usually decreasing in highly disturbed land uses. Like their hosts, parasites have to adapt to novel human impacted landscapes, in which the abiotic and biotic conditions are radically different from those of conserved natural environments. We evaluated the diversity (alpha and beta taxonomic and phylogenetic diversity) of haemosporidians (mtDNA cyt b lineages) in the common chlorospingus (Chlorospingus flavopectus) at five land use types. We further analyzed the response of prevalence, parasitaemia and parasite aggregation to land use types and seasonality. Parasite lineage richness (i.e., haplotypes) and abundance (no. infected hosts) decreased with disturbance. Parasite assemblages were commonly dominated by either one of two lineages, one dominant in the urban greenspace (pBAEBIC02) and the other dominant in well-preserved mountain cloud forest (hCHLFLA01). Beta diversity was mainly explained by lineage turnover. Phylo beta diversity was low (i.e., lineages are closely related). Overall prevalence increased in wet season that coincides with host's breeding season. Haemoproteus and Plasmodium prevalence presented the opposite response to urbanization (negative and positive, respectively). Parasitaemia presented similar values across land uses for both genera and seasons, while Plasmodium aggregation decreased with urbanization. Thus, some parasite lineages (pBAEBIC02) will benefit from the urbanization process, while others will entirely disappear from cities (hCHLFLA01).
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Affiliation(s)
- Carolina Hernández-Lara
- Instituto de Ecología, A.C., Red de Biología y Conservación de Vertebrados, Carretera Antigua a Coatepec 351, El Haya. Xalapa, Veracruz, México
| | - Pilar Carbó-Ramírez
- Instituto de Ecología, A.C., Red de Biología y Conservación de Vertebrados, Carretera Antigua a Coatepec 351, El Haya. Xalapa, Veracruz, México
| | - Diego Santiago-Alarcon
- Instituto de Ecología, A.C., Red de Biología y Conservación de Vertebrados, Carretera Antigua a Coatepec 351, El Haya. Xalapa, Veracruz, México.
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27
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Viral zoonotic risk is homogenous among taxonomic orders of mammalian and avian reservoir hosts. Proc Natl Acad Sci U S A 2020; 117:9423-9430. [PMID: 32284401 PMCID: PMC7196766 DOI: 10.1073/pnas.1919176117] [Citation(s) in RCA: 168] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Identifying whether novel human viruses disproportionately originate from certain animal groups could inform risk-based allocations of research and surveillance effort. Whether such “special reservoirs” exist remains controversial. We show that the proportion of viruses that infect humans varies minimally across reservoir taxonomic orders. Instead, the number of human-infecting viruses increases proportionately to the total number of viruses maintained by each reservoir group, which is in turn explained by the number of animal species within each group. This supports a host-neutral explanation for observed variation in the number of zoonoses among animal groups, such that traits of animal orders are unlikely to produce viruses that disproportionately threaten humans. These findings refine strategies to identify high-risk viruses prior to their emergence. The notion that certain animal groups disproportionately maintain and transmit viruses to humans due to broad-scale differences in ecology, life history, and physiology currently influences global health surveillance and research in disease ecology, virology, and immunology. To directly test whether such “special reservoirs” of zoonoses exist, we used literature searches to construct the largest existing dataset of virus–reservoir relationships, consisting of the avian and mammalian reservoir hosts of 415 RNA and DNA viruses along with their histories of human infection. Reservoir host effects on the propensity of viruses to have been reported as infecting humans were rare and when present were restricted to one or two viral families. The data instead support a largely host-neutral explanation for the distribution of human-infecting viruses across the animal orders studied. After controlling for higher baseline viral richness in mammals versus birds, the observed number of zoonoses per animal order increased as a function of their species richness. Animal orders of established importance as zoonotic reservoirs including bats and rodents were unexceptional, maintaining numbers of zoonoses that closely matched expectations for mammalian groups of their size. Our findings show that variation in the frequency of zoonoses among animal orders can be explained without invoking special ecological or immunological relationships between hosts and viruses, pointing to a need to reconsider current approaches aimed at finding and predicting novel zoonoses.
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28
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Irving AT, Rozario P, Kong PS, Luko K, Gorman JJ, Hastie ML, Chia WN, Mani S, Lee BPH, Smith GJD, Mendenhall IH, Larman HB, Elledge SJ, Wang LF. Robust dengue virus infection in bat cells and limited innate immune responses coupled with positive serology from bats in IndoMalaya and Australasia. Cell Mol Life Sci 2020; 77:1607-1622. [PMID: 31352533 PMCID: PMC11104837 DOI: 10.1007/s00018-019-03242-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 07/10/2019] [Accepted: 07/22/2019] [Indexed: 01/19/2023]
Abstract
Natural reservoir hosts can sustain infection of pathogens without succumbing to overt disease. Multiple bat species host a plethora of viruses, pathogenic to other mammals, without clinical symptoms. Here, we detail infection of bat primary cells, immune cells, and cell lines with Dengue virus. While antibodies and viral RNA were previously detected in wild bats, their ability to sustain infection is not conclusive. Old-world fruitbat cells can be infected, producing high titres of virus with limited cellular responses. In addition, there is minimal interferon (IFN) response in cells infected with MOIs leading to dengue production. The ability to support in vitro replication/production raises the possibility of bats as a transient host in the life cycle of dengue or similar flaviviruses. New antibody serology evidence from Asia/Pacific highlights the previous exposure and raises awareness that bats may be involved in flavivirus dynamics and infection of other hosts.
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Affiliation(s)
| | | | | | | | - Jeffrey J Gorman
- QIMR Berghofer Medical Research Institute, Herston, QLD, Australia
| | - Marcus L Hastie
- QIMR Berghofer Medical Research Institute, Herston, QLD, Australia
| | - Wan Ni Chia
- Duke-NUS Medical School, Singapore, Singapore
| | | | | | | | | | | | - Stephen J Elledge
- Harvard University Medical School, Boston, MA, 02115, USA
- Howard Hughes Medical Institute, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - Lin-Fa Wang
- Duke-NUS Medical School, Singapore, Singapore.
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29
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Sotomayor-Bonilla J, Tolsá-García MJ, García-Peña GE, Santiago-Alarcon D, Mendoza H, Alvarez-Mendizabal P, Rico-Chávez O, Sarmiento-Silva RE, Suzán G. Insights into the Host Specificity of Mosquito-Borne Flaviviruses Infecting Wild Mammals. ECOHEALTH 2019; 16:726-733. [PMID: 31664588 DOI: 10.1007/s10393-019-01442-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
Mosquito-borne flaviviruses (MBFVs) are of public and animal health concern because they cause millions of human deaths annually and impact domestic animals and wildlife globally. MBFVs are phylogenetically divided into two clades, one is transmitted by Aedes mosquitoes (Ae-MBFVs) associated with mammals and the other by Culex mosquitoes (Cx-MBFVs) associated with birds. However, this assumption has not been evaluated. Here, we synthesized 79 published reports of MBFVs from wild mammals, estimating their host. Then, we tested whether the host specificity was biased to sampling and investigation efforts or to phylogenetic relationships using a viral phylogenetic tree drawn from analyzing whole flavivirus genomes obtained in GenBank. We found in total 18 flaviviruses, nine related to Aedes spp. and nine to Culex spp. infecting 129 mammal species. Thus, this supports that vectors are transmitting MBFV across available host clades and that ornithophilic mosquitoes are readily infecting mammals. Although most of the mosquito species are generalists in their host-feeding preferences, we also found a certain degree of MBFV's specificity, as most of them infect closely related mammal species. The present study integrates knowledge regarding MBFVs, and it may help to understand their transmission dynamics between viruses, vectors, and mammal hosts.
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Affiliation(s)
- Jesús Sotomayor-Bonilla
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
| | - María José Tolsá-García
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico.
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico.
| | - Gabriel E García-Peña
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, Mexico
| | - Diego Santiago-Alarcon
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología AC, Carretera Antigua a Coatepec 351, Xalapa, Veracruz, Mexico
| | - Hugo Mendoza
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
| | - Paulina Alvarez-Mendizabal
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
| | - Oscar Rico-Chávez
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
| | - Rosa Elena Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, Mexico
| | - Gerardo Suzán
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior S/N, Ciudad Universitaria, Coyoacán, 04520, Ciudad de México, Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab AC, Ciclistas 63 Col. Country Club, Coyoacán, Ciudad de Mexico, Mexico
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Turell MJ, Gozalo AS, Guevara C, Schoeler GB, Carbajal F, López-Sifuentes VM, Watts DM. Lack of Evidence of Sylvatic Transmission of Dengue Viruses in the Amazon Rainforest Near Iquitos, Peru. Vector Borne Zoonotic Dis 2019; 19:685-689. [PMID: 30964397 PMCID: PMC6716187 DOI: 10.1089/vbz.2018.2408] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Dengue viruses (DENV) are currently responsible for more human morbidity and mortality than any other known arbovirus, and all four DENV are known to exist in sylvatic cycles that might allow these viruses to persist if the urban (Aedes aegypti) cycle could be controlled. To determine whether DENV were being maintained in a sylvatic cycle in a forested area about 14 km southwest of Iquitos, Peru, a city in which all 4 serotypes of DENV circulate, we placed 20 DENV seronegative Aotus monkeys in cages either in the canopy or near ground level for a total of 125.6 months. Despite capturing >66,000 mosquitoes in traps that collected some of the mosquitoes attracted to these monkeys, blood samples obtained once a month from each animal were tested and found to be negative by an enzyme-linked immunosorbent assay for IgM and IgG antibodies to dengue, yellow fever, Venezuelan equine encephalitis, Oropouche, and Mayaro viruses. Although all four DENV serotypes were endemic in nearby Iquitos, the findings of this study did not support a DENV sylvatic maintenance and transmission cycle in a selected area of the Amazon rainforest in northeastern Peru.
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Affiliation(s)
- Michael J. Turell
- Virology Division, U.S. Army Medical Research Institute for Infectious Diseases, Fort Detrick, Maryland
| | - Alfonso S. Gozalo
- Department of Entomology, U.S. Naval Medical Research Unit No. 6, Callao, Peru
| | - Carolina Guevara
- Department of Entomology, U.S. Naval Medical Research Unit No. 6, Callao, Peru
| | - George B. Schoeler
- Department of Entomology, U.S. Naval Medical Research Unit No. 6, Callao, Peru
| | - Faustino Carbajal
- Department of Entomology, U.S. Naval Medical Research Unit No. 6, Callao, Peru
| | | | - Douglas M. Watts
- Department of Viral and Rickettsial Diseases, Naval Medical Research Center, Silver Spring, Maryland
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31
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Calderón A, Guzmán C, Mattar S, Rodriguez V, Martínez C, Violet L, Martínez J, Figueiredo LTM. Dengue Virus in Bats from Córdoba and Sucre, Colombia. Vector Borne Zoonotic Dis 2019; 19:747-751. [PMID: 31211661 PMCID: PMC6765209 DOI: 10.1089/vbz.2018.2324] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Natural infection of dengue virus (DENV) in bats is an unexplored field in Colombia. To detect the presence of DENV in bats, a descriptive prospective study using a nonprobabilistic sampling was carried out; 286 bats in 12 sites were caught. Sample tissues of different animals were obtained; the RNA was obtained from tissues and a nested-RT-PCR was carried out and detected amplicons of 143 fragment of the NS5 gene were sequenced by the Sanger method. In nonhematophagous bats Carollia perspicillata and Phyllostomus discolor captured in Ayapel and San Carlos (Córdoba), respectively, an amplicon corresponding to NS5 was detected. The amplicons showed a high similarity with serotype-2 dengue virus (DENV-2). This is the first evidence of the DENV-2 genome in bats in from the Colombian Caribbean.
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Affiliation(s)
- Alfonso Calderón
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia.,Doctorate in Tropical Medicine SUE-Caribe, University of Córdoba, Monteria, Colombia
| | - Camilo Guzmán
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia.,Doctorate in Tropical Medicine SUE-Caribe, University of Córdoba, Monteria, Colombia
| | - Salim Mattar
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia
| | - Virginia Rodriguez
- Institute of Virology, Faculty of Medicine, University São Paulo, Ribeirão Preto, Brazil
| | - Caty Martínez
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia
| | - Lina Violet
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia
| | - Jairo Martínez
- Department of Bacterilogy, Faculty of Health Sciences, University of Córdoba, Montería, Colombia
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Fagre AC, Kading RC. Can Bats Serve as Reservoirs for Arboviruses? Viruses 2019; 11:E215. [PMID: 30832426 PMCID: PMC6466281 DOI: 10.3390/v11030215] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/22/2022] Open
Abstract
Bats are known to harbor and transmit many emerging and re-emerging viruses, many of which are extremely pathogenic in humans but do not cause overt pathology in their bat reservoir hosts: henipaviruses (Nipah and Hendra), filoviruses (Ebola and Marburg), and coronaviruses (SARS-CoV and MERS-CoV). Direct transmission cycles are often implicated in these outbreaks, with virus shed in bat feces, urine, and saliva. An additional mode of virus transmission between bats and humans requiring further exploration is the spread of disease via arthropod vectors. Despite the shared ecological niches that bats fill with many hematophagous arthropods (e.g. mosquitoes, ticks, biting midges, etc.) known to play a role in the transmission of medically important arboviruses, knowledge surrounding the potential for bats to act as reservoirs for arboviruses is limited. To this end, a comprehensive literature review was undertaken examining the current understanding and potential for bats to act as reservoirs for viruses transmitted by blood-feeding arthropods. Serosurveillance and viral isolation from either free-ranging or captive bats are described in relation to four arboviral groups (Bunyavirales, Flaviviridae, Reoviridae, Togaviridae). Further, ecological associations between bats and hematophagous viral vectors are characterized (e.g. bat bloodmeals in mosquitoes, ingestion of mosquitoes by bats, etc). Lastly, knowledge gaps related to hematophagous ectoparasites (bat bugs and bed bugs (Cimicidae) and bat flies (Nycteribiidae and Streblidae)), in addition to future directions for characterization of bat-vector-virus relationships are described.
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Affiliation(s)
- Anna C Fagre
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, CO 80523, USA.
| | - Rebekah C Kading
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, CO 80523, USA.
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Malmlov A, Bantle C, Aboellail T, Wagner K, Campbell CL, Eckley M, Chotiwan N, Gullberg RC, Perera R, Tjalkens R, Schountz T. Experimental Zika virus infection of Jamaican fruit bats (Artibeus jamaicensis) and possible entry of virus into brain via activated microglial cells. PLoS Negl Trop Dis 2019; 13:e0007071. [PMID: 30716104 PMCID: PMC6382173 DOI: 10.1371/journal.pntd.0007071] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 02/20/2019] [Accepted: 12/11/2018] [Indexed: 01/17/2023] Open
Abstract
The emergence of Zika virus (ZIKV) in the New World has led to more than 200,000 human infections. Perinatal infection can cause severe neurological complications, including fetal and neonatal microcephaly, and in adults there is an association with Guillain-Barré syndrome (GBS). ZIKV is transmitted to humans by Aedes sp. mosquitoes, yet little is known about its enzootic cycle in which transmission is thought to occur between arboreal Aedes sp. mosquitos and non-human primates. In the 1950s and '60s, several bat species were shown to be naturally and experimentally susceptible to ZIKV with acute viremia and seroconversion, and some developed neurological disease with viral antigen detected in the brain. Because of ZIKV emergence in the Americas, we sought to determine susceptibility of Jamaican fruit bats (Artibeus jamaicensis), one of the most common bats in the New World. Bats were inoculated with ZIKV PRVABC59 but did not show signs of disease. Bats held to 28 days post-inoculation (PI) had detectable antibody by ELISA and viral RNA was detected by qRT-PCR in the brain, saliva and urine in some of the bats. Immunoreactivity using polyclonal anti-ZIKV antibody was detected in testes, brain, lung and salivary glands plus scrotal skin. Tropism for mononuclear cells, including macrophages/microglia and fibroblasts, was seen in the aforementioned organs in addition to testicular Leydig cells. The virus likely localized to the brain via infection of Iba1+ macrophage/microglial cells. Jamaican fruit bats, therefore, may be a useful animal model for the study of ZIKV infection. This work also raises the possibility that bats may have a role in Zika virus ecology in endemic regions, and that ZIKV may pose a wildlife disease threat to bat populations.
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Affiliation(s)
- Ashley Malmlov
- Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Collin Bantle
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, United States of America
| | - Tawfik Aboellail
- Veterinary Diagnostic Laboratories, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Kaitlyn Wagner
- Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Corey L. Campbell
- Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Miles Eckley
- Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Nunya Chotiwan
- Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Rebekah C. Gullberg
- Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Rushika Perera
- Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Ronald Tjalkens
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, United States of America
| | - Tony Schountz
- Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
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Bittar C, Machado RRG, Comelis MT, Bueno LM, Morielle-Versute E, Beguelini MR, de Souza RP, Nogueira ML, Rahal P. Lack of serological and molecular evidence of arbovirus infections in bats from Brazil. PLoS One 2018; 13:e0207010. [PMID: 30403749 PMCID: PMC6221338 DOI: 10.1371/journal.pone.0207010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 10/23/2018] [Indexed: 11/29/2022] Open
Abstract
Viruses are important agents of emerging zoonoses and are a substantial public health issue. Among emerging viruses, an important group are arboviruses, which are characterized by being maintained in nature in cycles involving hematophagous arthropod vectors and a wide range of vertebrate hosts. Recently, bats have received increasing attention as an important source for the emergence of zoonoses and as possible viral reservoirs. Among the arboviruses, there are many representatives of the genera Flavivirus and Alphavirus, which are responsible for important epidemics such as Dengue virus, Zika virus and Chikungunya virus. Due to the importance of analyzing potential viral reservoirs for zoonosis control and expanding our knowledge of bat viruses, this study aimed to investigate the presence of viruses of the Alphavirus and Flavivirus genera in bats. We analyzed serum, liver, lungs and intestine from 103 bats sampled in northeast and southern Brazil via Nested-PCR and the hemagglutination inhibition test. All samples tested in this study were negative for arboviruses, suggesting that no active or past infection was present in the captured bats. These data indicate that the bats examined herein probably do not constitute a reservoir for these viruses in the studied areas. Further studies are needed to clarify the role of bats as reservoirs and sources of infection of these viral zoonoses.
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Affiliation(s)
- Cíntia Bittar
- Laboratório de Estudos Genômicos, Instituto de Biociências, Letras e Ciências Exatas, UNESP—Universidade Estadual Paulista “Júlio de Mesquita Filho”, São José do Rio Preto, São Paulo, Brazil
| | - Rafael R. G. Machado
- Laboratório de Estudos Genômicos, Instituto de Biociências, Letras e Ciências Exatas, UNESP—Universidade Estadual Paulista “Júlio de Mesquita Filho”, São José do Rio Preto, São Paulo, Brazil
| | - Manuela T. Comelis
- Laboratório de Chiroptera, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista “Júlio de Mesquita Filho”, São José do Rio Preto, São Paulo, Brazil
| | - Larissa M. Bueno
- Laboratório de Chiroptera, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista “Júlio de Mesquita Filho”, São José do Rio Preto, São Paulo, Brazil
| | - Eliana Morielle-Versute
- Laboratório de Chiroptera, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista “Júlio de Mesquita Filho”, São José do Rio Preto, São Paulo, Brazil
| | - Matheus R. Beguelini
- Laboratório de Chiroptera, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista “Júlio de Mesquita Filho”, São José do Rio Preto, São Paulo, Brazil
- Centro das Ciências Biológicas e da Saúde, UFOB—Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Renato P. de Souza
- Núcleo de Doenças de Transmissão Vetorial, Instituto Adolfo Lutz, São Paulo, Brazil
| | - Maurício L. Nogueira
- Laboratório de Pesquisa em Virologia, FAMERP-Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil
| | - Paula Rahal
- Laboratório de Estudos Genômicos, Instituto de Biociências, Letras e Ciências Exatas, UNESP—Universidade Estadual Paulista “Júlio de Mesquita Filho”, São José do Rio Preto, São Paulo, Brazil
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Sotomayor-Bonilla J, García-Suárez O, Cigarroa-Toledo N, Cetina-Trejo RC, Espinosa-García AC, Sarmiento-Silva RE, Machain-Williams C, Santiago-Alarcón D, Mazari-Hiriart M, Suzán G. Survey of mosquito-borne flaviviruses in the Cuitzmala River Basin, Mexico: do they circulate in rodents and bats? Trop Med Health 2018; 46:35. [PMID: 30386168 PMCID: PMC6201526 DOI: 10.1186/s41182-018-0117-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/24/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND RNA viruses commonly infect bats and rodents, including mosquito-borne flaviviruses (MBFV) that affect human and animal health. Serological evidence suggests past interactions between these two mammalian orders with dengue viruses (DENV), West Nile virus (WNV), and yellow fever virus (YFV). Although in Mexico there are reports of these viruses in both host groups, we know little about their endemic cycles or persistence in time and space. METHODS Rodents and bats were captured at the Cuitzmala River Basin on the Pacific coast of Jalisco state, Mexico, where MBFV, such as DENV, have been reported in both humans and bats. Samples were taken during January, June, and October 2014, at locations adjacent to the river. Tissue samples were collected from both bats and rodents and serum samples from rodents only. Highly sensitive serological and molecular assays were used to search for current and past evidence of viral circulation. RESULTS One thousand nine hundred forty-eight individuals were captured belonging to 21 bat and 14 rodent species. Seven hundred sixty-nine liver and 764 spleen samples were analysed by means of a specific molecular protocol used to detect flaviviruses. Additionally, 708 serum samples from rodents were examined in order to demonstrate previous exposure to dengue virus serotype 2 (which circulates in the region). There were no positive results with any diagnostic test. DISCUSSION To our knowledge, this is the first survey of rodents and only the second survey of bats from the Pacific Coast of Mexico in a search for MBFV. We obtained negative results from all samples. We validated our laboratory tests with negative and positive controls. Our findings are consistent with other empirical and experimental studies in which these mammalian hosts may not replicate mosquito-borne flaviviruses or present low prevalence. CONCLUSIONS True-negative results are essential for the construction of distribution models and are necessary to identify potential areas at risk. Negative results should not be interpreted as the local absence of MBFV in the region. On the contrary, we need to establish a long-term surveillance programme to find MBFV presence in the mosquito trophic networks, identifying the potential role of rodents and bats in viral dynamics.
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Affiliation(s)
- Jesús Sotomayor-Bonilla
- Programa de Maestría y Doctorado en Ciencias de la Producción y de la Salud Animal, Universidad Nacional Autónoma de México, Circuito interior s/n, Ciudad Universitaria, Coyoacán, Mexico City Mexico
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior s/n, Ciudad Universitaria, Coyoacán, Mexico City Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab, A.C., Ciclistas 63 Col. Country Club, Coyoacán, Mexico City Mexico
| | - Omar García-Suárez
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior s/n, Ciudad Universitaria, Coyoacán, Mexico City Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab, A.C., Ciclistas 63 Col. Country Club, Coyoacán, Mexico City Mexico
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología,, Universidad Nacional Autónoma de México, Circuito Exterior s/n anexo Jardín Botánico exterior, Ciudad Universitaria, Coyoacán, Mexico City Mexico
| | - Nohemí Cigarroa-Toledo
- Laboratorio de Arbovirología, Centro de Investigaciones Regional “Hideyo Noguchi”, Universidad Autónoma de Yucatán , Mérida, Yucatán, Mexico
| | - Rosa C. Cetina-Trejo
- Laboratorio de Arbovirología, Centro de Investigaciones Regional “Hideyo Noguchi”, Universidad Autónoma de Yucatán , Mérida, Yucatán, Mexico
| | - Ana C. Espinosa-García
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología,, Universidad Nacional Autónoma de México, Circuito Exterior s/n anexo Jardín Botánico exterior, Ciudad Universitaria, Coyoacán, Mexico City Mexico
| | - Rosa E. Sarmiento-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito interior s/n, Ciudad Universitaria, Coyoacán, Mexico City México
| | - Carlos Machain-Williams
- Laboratorio de Arbovirología, Centro de Investigaciones Regional “Hideyo Noguchi”, Universidad Autónoma de Yucatán , Mérida, Yucatán, Mexico
| | - Diego Santiago-Alarcón
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab, A.C., Ciclistas 63 Col. Country Club, Coyoacán, Mexico City Mexico
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología AC, Carretera Antigua a Coatepec 351, Xalapa, Veracruz México
| | - Marisa Mazari-Hiriart
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología,, Universidad Nacional Autónoma de México, Circuito Exterior s/n anexo Jardín Botánico exterior, Ciudad Universitaria, Coyoacán, Mexico City Mexico
| | - Gerardo Suzán
- Laboratorio de Ecología de Enfermedades y Una Salud, Departamento de Etología, Fauna Silvestre y Animales de Laboratorio, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Interior s/n, Ciudad Universitaria, Coyoacán, Mexico City Mexico
- Asociación Mexicana de Medicina de la Conservación Kalaan Kab, A.C., Ciclistas 63 Col. Country Club, Coyoacán, Mexico City Mexico
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Kellner A, Carver S, Scorza V, McKee CD, Lappin M, Crooks KR, VandeWoude S, Antolin MF. Transmission pathways and spillover of an erythrocytic bacterial pathogen from domestic cats to wild felids. Ecol Evol 2018; 8:9779-9792. [PMID: 30386574 PMCID: PMC6202716 DOI: 10.1002/ece3.4451] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/06/2018] [Accepted: 07/06/2018] [Indexed: 12/26/2022] Open
Abstract
Many pathogens infect multiple hosts, and spillover from domestic to wild species poses a significant risk of spread of diseases that threaten wildlife and humans. Documentation of cross-species transmission, and unraveling the mechanisms that drive it, remains a challenge. Focusing on co-occurring domestic and wild felids, we evaluate possible transmission mechanisms and evidence of spillover of "Candidatus Mycoplasma haemominutum" (CMhm), an erythrocytic bacterial parasite of cats. We examine transmission and possibility of spillover by analyzing CMhm prevalence, modeling possible transmission pathways, deducing genotypes of CMhm pathogens infecting felid hosts based on sequences of the bacterial 16S rRNA gene, and conducting phylogenetic analyses with ancestral state reconstruction to identify likely cross-species transmission events. Model selection analyses suggest both indirect (i.e., spread via vectors) and direct (i.e., via interspecific predation) pathways may play a role in CMhm transmission. Phylogenetic analyses indicate that transmission of CMhm appears to predominate within host species, with occasional spillover, at unknown frequency, between species. These analyses are consistent with transmission by predation of smaller cats by larger species, with subsequent within-species persistence after spillover. Our results implicate domestic cats as a source of global dispersal and spillover to wild felids via predation. We contribute to the emerging documentation of predation as a common means of pathogen spillover from domestic to wild cats, including pathogens of global conservation significance. These findings suggest risks for top predators as bioaccumulators of pathogens from subordinate species.
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Affiliation(s)
- Annie Kellner
- Graduate Degree Program in EcologyColorado State UniversityFort CollinsColorado
- Department of BiologyColorado State UniversityFort CollinsColorado
- Department of Fish, Wildlife and Conservation BiologyColorado State UniversityFort CollinsColorado
| | - Scott Carver
- School of Biological SciencesUniversity of TasmaniaHobartTasmaniaAustralia
| | - Valeria Scorza
- Department of Clinical SciencesColorado State UniversityFort CollinsColorado
| | - Clifton D. McKee
- Graduate Degree Program in EcologyColorado State UniversityFort CollinsColorado
- Department of BiologyColorado State UniversityFort CollinsColorado
| | - Michael Lappin
- Department of Clinical SciencesColorado State UniversityFort CollinsColorado
| | - Kevin R. Crooks
- Graduate Degree Program in EcologyColorado State UniversityFort CollinsColorado
- Department of Fish, Wildlife and Conservation BiologyColorado State UniversityFort CollinsColorado
| | - Sue VandeWoude
- Department of Microbiology, Immunology, and PathologyColorado State UniversityFort CollinsColorado
| | - Michael F. Antolin
- Graduate Degree Program in EcologyColorado State UniversityFort CollinsColorado
- Department of BiologyColorado State UniversityFort CollinsColorado
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