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Ghafar A, Alghamdi SQ, Alanazi AD, Qousain SMZ, Ijaz M, Naeem M, Ali M, Muqaddas H, Khan A, Iqbal F. Molecular prevalence of vector borne bacterial pathogens in the blood samples of wild rodent species trapped from Saudi Arabia. Comp Immunol Microbiol Infect Dis 2024; 106:102129. [PMID: 38335834 DOI: 10.1016/j.cimid.2024.102129] [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] [Received: 11/29/2023] [Revised: 01/10/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024]
Abstract
Order Rodentia is the most speciose among mammals and the members of this order are known to host more than 60 zoonotic diseases and rodents are a potential health threat to humans. This study was designed to report the molecular prevalence and phylogenetic evaluation of various blood borne bacterial pathogens (Anaplasma ovis, Anaplasma phagocytophilum, Anaplasma marginale and Bartonella spp.) in the blood samples of four wild rodent species [Meriones rex (N = 27), Acomys dimidiatus (N = 18), Myomys yemeni (N = 6) and Rattus rattus (N = 3)] that were trapped during August till October 2020 from Al Makhwah governorate in Saudi Arabia. Results revealed by 9/54 (16.6%) rodents amplified Msp4 gene and 2/54 (3.7%) rodents amplified rpoB gene of Anaplasma ovis and Bartonella spp. respectively. Anaplasma phagocytophilum and Anaplasma marginale were not detected among enrolled rodent species. Meriones rex was the most highly infected rodent species. DNA sequencing and BLAST analysis confirmed the presence of Anaplasma ovis and the Bartonella koehlerae in rodent blood samples. Phylogenetic analysis of both pathogens showed that Saudi isolates were clustered together and were closely related to isolates that were reported from worldwide countries. Risk factor analysis revealed that prevalence of both bacterial pathogens was not restricted to a particular rodent species or a rodent sex (P > 0.05). In conclusion, we are reporting for the very first time that Saudi rodents are infected with Anaplasma ovis and rodents can be infected with Bartonella koehlerae. Similar studies at large scale are recommended in all those areas of Saudi Arabia that are unexplored for the incidence and prevalence of bacterial pathogens among the rodents that are living near human dwellings in order to prevent bacterial infections in local people as well as in livestock.
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Affiliation(s)
- Abdul Ghafar
- Institute of Zoology, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Samia Q Alghamdi
- College of Science, Al Baha University, Alaqiq, Al Baha Province 65779-77388, Saudi Arabia
| | - Abdullah D Alanazi
- Departmentof Biological Sciences, Faculty of Science and Humanities, Shaqra University, P.O. Box 1040, Ad-Dawadimi 11911, Saudi Arabia
| | | | - Maryam Ijaz
- Institute of Zoology, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Muhammad Naeem
- Institute of Zoology, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Muhammad Ali
- Institute of Zoology, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Hira Muqaddas
- Department of Zoology, The Women University Multan, 60800, Pakistan.
| | - Adil Khan
- Department of Botany and Zoology, Bacha Khan University, Charsadda 24420, Khyber Pakhtunkhwa, Pakistan.
| | - Furhan Iqbal
- Institute of Zoology, Bahauddin Zakariya University, Multan 60800, Pakistan.
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Li J, Zhang C, Lu M, Wang Y, Wang W, Liu F, Wu S, Liu Y, Fan M, Li K. The diverse genetic genotypes of Bartonella species circulating in rodents from Inner Mongolia, Northern China. PLoS Negl Trop Dis 2023; 17:e0011462. [PMID: 37384796 DOI: 10.1371/journal.pntd.0011462] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/14/2023] [Indexed: 07/01/2023] Open
Abstract
Bartonella are generally recognized as zoonotic pathogens of mammals, including many rodent species. However, data on the genetic diversity of Bartonella in some regions are still absent in China. In this study, we collected rodent samples (Meriones unguiculatus, Spermophilus dauricus, Eolagurus luteus, and Cricetulus barabensis) from Inner Mongolia located in Northern China. The Bartonella were detected and identified by sequencing the gltA, ftsZ, ITS, and groEL genes in them. An overall 47.27% (52/110) positive rate was observed. This may be the first report that M. unguiculatus and E. luteus harbor Bartonella. Phylogenetic and genetic analysis on gltA, ftsZ, ITS, and groEL genes indicated that the strains were divided into seven distinct clades, suggesting the diverse genetic genotypes of Bartonella species in this area. Of those, Clade 5 meets the criteria for identification as a novel species based on gene sequence dissimilarity to known Bartonella species and herein we name it "Candidatus Bartonella mongolica".
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Affiliation(s)
- Jianyun Li
- General Center for Disease Control and Prevention of Inner Mongolia Autonomous Region, Huhehot City, Inner Mongolia Autonomous Region, China
| | - Chenxi Zhang
- Inner Mongolia Medical University, Huhehot City, Inner Mongolia Autonomous Region, China
| | - Miao Lu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping District, Beijing City, China
| | - Yu Wang
- Inner Mongolia Agricultural University, Huhehot City, Inner Mongolia Autonomous Region, China
| | - Wen Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping District, Beijing City, China
| | - Fang Liu
- General Center for Disease Control and Prevention of Inner Mongolia Autonomous Region, Huhehot City, Inner Mongolia Autonomous Region, China
| | - Shaoqing Wu
- Ulanqab Center for Disease Control and Prevention, Ulanqab City, Inner Mongolia Autonomous Region, China
| | - Yang Liu
- Baotou Medical College, Baotou City, Inner Mongolia Autonomous Region, China
| | - Mengguang Fan
- General Center for Disease Control and Prevention of Inner Mongolia Autonomous Region, Huhehot City, Inner Mongolia Autonomous Region, China
| | - Kun Li
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping District, Beijing City, China
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Cao XQ, Gu XL, Zhang L, Xu J, Han HJ, Yu XJ. Molecular detection of Rickettsia, Anaplasma, and Bartonella in ticks from free-ranging sheep in Gansu Province, China. Ticks Tick Borne Dis 2023; 14:102137. [PMID: 36738629 DOI: 10.1016/j.ttbdis.2023.102137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 01/18/2023] [Accepted: 01/22/2023] [Indexed: 02/05/2023]
Abstract
Ticks pose a serious threat to public health as carriers and often vectors of zoonotic pathogens. There are few systematic studies on the prevalence and genetic diversity of tick-borne bacterial pathogens in Western China. In this study, 465 ticks were collected from free-ranging sheep in Gansu Province in China. Ticks were divided into 113 pools and tick DNA was extracted from these ticks. PCR assays were performed using specific primers to screen for tick-borne pathogens as well as sequence analysis based on the 16S rRNA (rrs), ompB, gltA, ompA genes for Rickettsia, rrs, groEL genes for Anaplasma, and ssrA and rpoB genes for Bartonella. The PCR results showed that the minimum infection rates with Rickettsia, Anaplasma, and Bartonella were 16.8% (78/465), 18.9% (88/465), and 0.9% (4/465), respectively. Sequence analysis based on the concatenated sequences of rrs-ompB-gltA-ompA indicated that the Rickettsia species identified in the ticks belonged to Rickettsia raoultii, Rickettsia slovaca, and Rickettsia sibirica, respectively; phylogenetic analysis based on the groEL gene showed that all Anaplasma strains identified were Anaplasma ovis; and phylogenetic analysis based on the ssrA and rpoB genes indicated that all Bartonella strains in the ticks belonged to Bartonella melophagi. The results of this study showed that ticks in Gansu Province harbored multiple pathogens that may cause rickettsial diseases and bartonellosis. These diseases were neglected in the area and physicians and public health workers need to pay attention to their diagnoses to prevent human infection.
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Affiliation(s)
- Xiao-Qian Cao
- State Key Laboratory of Virology, School of Public Health, Wuhan University, Wuhan, Hubei, China
| | - Xiao-Lan Gu
- State Key Laboratory of Virology, School of Public Health, Wuhan University, Wuhan, Hubei, China
| | - Li Zhang
- State Key Laboratory of Virology, School of Public Health, Wuhan University, Wuhan, Hubei, China
| | - Jiao Xu
- State Key Laboratory of Virology, School of Public Health, Wuhan University, Wuhan, Hubei, China
| | - Hui-Ju Han
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan, Shandong, China.
| | - Xue-Jie Yu
- State Key Laboratory of Virology, School of Public Health, Wuhan University, Wuhan, Hubei, China.
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