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Hammoud A, Medkour H, Zgheib R, Louni M, Diatta G, Bassene H, Sambou M, Gaye M, Haddad G, Fenollar F, Sokhna C, Mediannikov O. Bartonella raoultii sp. nov., isolated from infected rodents ( Mastomys erythroleucus) in Senegal. Int J Syst Evol Microbiol 2023; 73. [PMID: 37578895 DOI: 10.1099/ijsem.0.005888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023] Open
Abstract
Bartonella species are involved in various human diseases, causing a range of clinical manifestations; animals are considered as the main reservoirs, transmitting diverse species of Bartonella through direct contact and haematophagous insects. Here, we characterize a new species, Bartonella raoultii sp. nov., within the genus Bartonella, using a taxonogenomic polyphasic approach. Strain 094T (= CSUR B1097T=DSM 28004T), isolated from the blood of an infected rodent (Mastomys erythroleucus) in Senegal, is an aerobic and rod-shaped bacterium. The annotated non-contiguous genome sequence is 1 952322 bp long and contains 37.2 mol% G+C content, 1686 protein-coding genes and 50 RNA genes, including seven rRNA genes.
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Affiliation(s)
- Alissa Hammoud
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, MEPHI, 13005 Marseille, France
| | - Hacène Medkour
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, MEPHI, 13005 Marseille, France
| | - Rita Zgheib
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, VITROME, 13005 Marseille, France
| | - Meriem Louni
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, VITROME, 13005 Marseille, France
- Faculty of Science, M'Hamed Bougara Boumerdès University, Boumerdès 35000, Algeria
| | - Georges Diatta
- VITROME, Campus International IRD-UCAD Hann, Dakar, Senegal
| | - Hubert Bassene
- VITROME, Campus International IRD-UCAD Hann, Dakar, Senegal
| | - Masse Sambou
- VITROME, Campus International IRD-UCAD Hann, Dakar, Senegal
| | - Mapenda Gaye
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, MEPHI, 13005 Marseille, France
| | - Gabriel Haddad
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, MEPHI, 13005 Marseille, France
| | - Florence Fenollar
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, VITROME, 13005 Marseille, France
| | - Cheikh Sokhna
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, VITROME, 13005 Marseille, France
| | - Oleg Mediannikov
- IHU Méditerranée Infection, 13005 Marseille, France
- Aix Marseille Univ, IRD, APHM, MEPHI, 13005 Marseille, France
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Mullins K, Canal E, Ouch P, Prasetyo D, Tagoe J, Attram N, Yeboah C, Kumordjie S, Fox A, Letizia AG, Rachlin A, Nguyen HM, Robinson MT, Vongsouvath M, Davong V, Maxay M, Simons MP, Caranci A, Newton PN, Richards AL, Farris CM. Bartonella Species in Cambodia, Ghana, Laos, and Peru: Results from Vector and Serosurveys. Vector Borne Zoonotic Dis 2023; 23:9-17. [PMID: 36633562 PMCID: PMC7614129 DOI: 10.1089/vbz.2021.0090] [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: 01/13/2023] Open
Abstract
Background: Bartonella species are fastidious gram-negative vector-borne bacteria with a wide range of mammalian reservoirs. While it is understood that some species of Bartonella are human pathogens, the extent of human exposure to Bartonella species (both pathogenic and nonpathogenic) is yet to be fully understood. Materials and Methods: To this end, residual sera from participants enrolled in undifferentiated fever studies in Cambodia, Ghana, Laos, and Peru were screened for the presence of IgG antibodies against Bartonella quintana and Bartonella henselae, using the FOCUS diagnostics Dual Spot- Bartonella IgG Immunofluorescence assay. Forty-eight patients with suspected or confirmed Bartonella bacilliformis exposure or infection in Peru were screened to assess cross-reactivity of the FOCUS assay for IgG against other Bartonella species. Results: Ten of 13 patients with confirmed B. bacilliformis infection were Bartonella-specific IgG positive, and overall, 36/48 of the samples were positive. In addition, 79/206, 44/200, 101/180, and 57/100 of the samples from Peru, Laos, Cambodia, and Ghana, respectively, were Bartonella-specific IgG positive. Furthermore, ectoparasite pools from Cambodia, Laos, and Peru were tested using quantitative real-time PCR (qPCR) for the presence of Bartonella DNA. Of the sand fly pools collected in Peru, 0/196 were qPCR positive; 15/140 flea pools collected in Cambodia were qPCR positive; while 0/105 ticks, 0/22 fleas, and 0/3 louse pools collected in Laos tested positive for Bartonella DNA. Conclusion: Evidence of Bartonella in fleas from Cambodia supports the possibility that humans are exposed to Bartonella through this traditional vector. However, Bartonella species were not found in fleas, ticks, or lice from Laos, or sand flies from Peru. This could account for the lower positive serology among the population in Laos and the strictly localized nature of B. bacilliformis infections in Peru. Human exposure to the Bartonella species and Bartonella as a human pathogen warrants further investigation.
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Affiliation(s)
- Kristin Mullins
- University of Maryland School of Medicine, Baltimore, Maryland, USA
- Naval Medical Research Center, Silver Spring, Maryland, USA
| | | | - Pidor Ouch
- Naval Medical Research Unit-2, Phnom Penh, Cambodia
| | | | - Janice Tagoe
- Naval Medical Research Unit-3 Ghana Detachment, Accra, Ghana
| | - Naiki Attram
- Naval Medical Research Unit-3 Ghana Detachment, Accra, Ghana
| | - Clara Yeboah
- Naval Medical Research Unit-3 Ghana Detachment, Accra, Ghana
| | | | - Anne Fox
- Naval Medical Research Unit-3 Ghana Detachment, Accra, Ghana
| | | | - Audrey Rachlin
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
| | - Hung Manh Nguyen
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
| | - Matthew T Robinson
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
- Center for Tropical Medicine & Global Health, Nuffield Department of Medicine, Oxford University, Oxford, United Kingdom
| | - Manivanh Vongsouvath
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
- Microbiology Laboratory, Mahosot Hospital, Qua Fa Ngum, Vientiane, Lao PDR
| | - Viengmon Davong
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
- Microbiology Laboratory, Mahosot Hospital, Qua Fa Ngum, Vientiane, Lao PDR
| | - Mayfong Maxay
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
- Center for Tropical Medicine & Global Health, Nuffield Department of Medicine, Oxford University, Oxford, United Kingdom
- Institute of Research and Education Development, University of Health Sciences, Ministry of Health, Vientiane, Lao PDR
| | - Mark P Simons
- Naval Medical Research Center, Silver Spring, Maryland, USA
| | - Angela Caranci
- Northwest Mosquito and Vector Control District, Corona, California, USA
| | - Paul N Newton
- Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos
- Center for Tropical Medicine & Global Health, Nuffield Department of Medicine, Oxford University, Oxford, United Kingdom
| | - Allen L Richards
- Naval Medical Research Center, Silver Spring, Maryland, USA
- Uniformed Services University, Bethesda, Maryland, USA
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Liu Y, Chen J, Lang H, Zheng H. Bartonella choladocola sp. nov. and Bartonella apihabitans sp. nov., two novel species isolated from honey bee gut. Syst Appl Microbiol 2022; 45:126372. [DOI: 10.1016/j.syapm.2022.126372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022]
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Krügel M, Król N, Kempf VAJ, Pfeffer M, Obiegala A. Emerging rodent-associated Bartonella: a threat for human health? Parasit Vectors 2022; 15:113. [PMID: 35361285 PMCID: PMC8969336 DOI: 10.1186/s13071-022-05162-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/11/2022] [Indexed: 01/20/2023] Open
Abstract
Background Species of the genus Bartonella are facultative intracellular alphaproteobacteria with zoonotic potential. Bartonella infections in humans range from mild with unspecific symptoms to life threatening, and can be transmitted via arthropod vectors or through direct contact with infected hosts, although the latter mode of transmission is rare. Among the small mammals that harbour Bartonella spp., rodents are the most speciose group and harbour the highest diversity of these parasites. Human–rodent interactions are not unlikely as many rodent species live in proximity to humans. However, a surprisingly low number of clinical cases of bartonellosis related to rodent-associated Bartonella spp. have thus far been recorded in humans. Methods The main purpose of this review is to determine explanatory factors for this unexpected finding, by taking a closer look at published clinical cases of bartonellosis connected with rodent-associated Bartonella species, some of which have been newly described in recent years. Thus, another focus of this review are these recently proposed species. Conclusions Worldwide, only 24 cases of bartonellosis caused by rodent-associated bartonellae have been reported in humans. Possible reasons for this low number of cases in comparison to the high prevalences of Bartonella in small mammal species are (i) a lack of awareness amongst physicians of Bartonella infections in humans in general, and especially those caused by rodent-associated bartonellae; and (ii) a frequent lack of the sophisticated equipment required for the confirmation of Bartonella infections in laboratories that undertake routine diagnostic testing. As regards recently described Bartonella spp., there are presently 14 rodent-associated Candidatus taxa. In contrast to species which have been taxonomically classified, there is no official process for the review of proposed Candidatus species and their names before they are published. This had led to the use of malformed names that are not based on the International Code of Nomenclature of Prokaryotes. Researchers are thus encouraged to propose Candidatus names to the International Committee on Systematics of Prokaryotes for approval before publishing them, and only to propose new species of Bartonella when the relevant datasets allow them to be clearly differentiated from known species and subspecies. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05162-5.
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Affiliation(s)
- Maria Krügel
- Institute of Animal Hygiene and Veterinary Public Health, University of Leipzig, An den Tierkliniken 1, 04103, Leipzig, Germany
| | - Nina Król
- Institute of Animal Hygiene and Veterinary Public Health, University of Leipzig, An den Tierkliniken 1, 04103, Leipzig, Germany
| | - Volkhard A J Kempf
- Institute for Medical Microbiology and Infection Control, University Hospital, Goethe University, Frankfurt am Main, Germany.,National Consiliary Laboratory for Bartonella, Frankfurt am Main, Germany
| | - Martin Pfeffer
- Institute of Animal Hygiene and Veterinary Public Health, University of Leipzig, An den Tierkliniken 1, 04103, Leipzig, Germany
| | - Anna Obiegala
- Institute of Animal Hygiene and Veterinary Public Health, University of Leipzig, An den Tierkliniken 1, 04103, Leipzig, Germany.
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Demoncheaux JP, Medkour H, Louni M, Laugier L, Pasqualini C, Fenollar F, Davoust B, Mediannikov O. Detection of Potential Zoonotic Bartonella Species in African Giant Rats (Cricetomys gambianus) and Fleas from an Urban Area in Senegal. Microorganisms 2022; 10:microorganisms10030489. [PMID: 35336065 PMCID: PMC8953472 DOI: 10.3390/microorganisms10030489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/06/2022] [Accepted: 02/15/2022] [Indexed: 11/26/2022] Open
Abstract
Bartonellae are bacteria associated with mammals and their ectoparasites. Rodents often host different species of Bartonella. The aim of this study was to investigate the presence of Bartonella spp. in African giant pouched rats (Cricetomys gambianus) and their ectoparasites in Dakar, Senegal. In 2012, 20 rats were caught, and their fleas were identified. DNA was extracted from 170 selected fleas and qPCR was carried out to detect Bartonella spp. Subsequently, a Bartonella culture was performed from the rat blood samples and the isolated strains (16S rRNA, rpoB, ftsZ and ITS3) were genotyped. A total of 1117 fleas were collected from 19 rats and identified as Xenopsylla cheopis, the tropical rat flea. Bartonella DNA was detected in 148 of 170 selected fleas (87.1%). In addition, Bartonella strains were isolated from the blood of 17 rats (85%). According to Bartonella gene-sequence-based criteria for species definition, the isolated strains were identified as B. massiliensis (four strains) and two potential new species related to the zoonotic B. elizabethae. In this paper, these potentially new species are provisionally called Candidatus Bartonella militaris (11 strains) and Candidatus Bartonella affinis (two strains) until their description has been completed. Cricetomys gambianus and its fleas could constitute a public health risk in Dakar due to the high prevalence of Bartonella infection reported.
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Affiliation(s)
- Jean-Paul Demoncheaux
- Animal Epidemiology Expert Group of the Military Health Service, 37100 Tours, France; (J.-P.D.); (B.D.)
- Military Health Service, French Armed Forces in Senegal, Dakar 18524, Senegal;
| | - Hacene Medkour
- IRD, AP-HM, MEPHI, Aix Marseille University, 13005 Marseille, France; (H.M.); (M.L.)
- IHU Méditerranée Infection, 13005 Marseille, France; (L.L.); (F.F.)
| | - Meriem Louni
- IRD, AP-HM, MEPHI, Aix Marseille University, 13005 Marseille, France; (H.M.); (M.L.)
- IHU Méditerranée Infection, 13005 Marseille, France; (L.L.); (F.F.)
| | - Laurie Laugier
- IHU Méditerranée Infection, 13005 Marseille, France; (L.L.); (F.F.)
- IRD, AP-HM, SSA, VITROME, Aix Marseille University, 13005 Marseille, France
| | | | - Florence Fenollar
- IHU Méditerranée Infection, 13005 Marseille, France; (L.L.); (F.F.)
- IRD, AP-HM, SSA, VITROME, Aix Marseille University, 13005 Marseille, France
| | - Bernard Davoust
- Animal Epidemiology Expert Group of the Military Health Service, 37100 Tours, France; (J.-P.D.); (B.D.)
- IRD, AP-HM, MEPHI, Aix Marseille University, 13005 Marseille, France; (H.M.); (M.L.)
- IHU Méditerranée Infection, 13005 Marseille, France; (L.L.); (F.F.)
| | - Oleg Mediannikov
- IRD, AP-HM, MEPHI, Aix Marseille University, 13005 Marseille, France; (H.M.); (M.L.)
- IHU Méditerranée Infection, 13005 Marseille, France; (L.L.); (F.F.)
- Correspondence:
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