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Akwongo CJ, Byaruhanga C. Epidemiology of Anaplasma species amongst cattle in Africa from 1970 to 2022: A systematic review and meta-analysis. Prev Vet Med 2024; 228:106214. [PMID: 38733736 DOI: 10.1016/j.prevetmed.2024.106214] [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: 12/20/2023] [Revised: 04/07/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024]
Abstract
Tick-borne pathogens of the genus Anaplasma cause anaplasmosis in livestock and humans, impacting health and livelihoods, particularly in Africa. A comprehensive review on the epidemiology of Anaplasma species is important to guide further research and for implementation of control approaches. We reviewed observational studies concerning Anaplasma species amongst cattle in Africa. Peer-reviewed studies published in PubMed, Google Scholar, and Web of Science - from database inception to 2022 - were searched. The quality of individual studies was assessed using the Joanna Briggs Institute Critical Appraisal Tool and the pooled prevalences by diagnostic method were estimated using random-effects models. Heterogeneity across the studies was tested and quantified using the Cochran's Q statistic and the I2 statistic. Potential sources of heterogeneity were investigated by subgroup analysis. A total of 1117 records were retrieved and at the end of the screening, 149 records (155 studies) were eligible for this meta-analysis. The occurrence of Anaplasma species was reported in 31/54 countries in all regions. Seven recognised species (A. marginale, A. centrale, A. phagocytophilum, A. platys, A. capra, A. bovis, A. ovis) and nine uncharacterised genotypes (Anaplasma sp. Hadesa; Anaplasma sp. Saso; Anaplasma sp. Dedessa; Anaplasma sp. Mymensingh; Anaplasma sp. Lambwe-1; Candidatus Anaplasma africae; Anaplasma sp.; Candidatus Anaplasma boleense) were reported in African cattle. Anaplasma marginale was the most frequently reported (n=144/155 studies) and the most prevalent species (serology methods 56.1%, 45.9-66.1; direct detection methods 19.9%, 15.4-24.7), followed by A. centrale (n=26 studies) with a prevalence of 8.0% (95% CI: 4.8-11.9) and A. platys (n=19 studies) with prevalence of 9.7% (95% CI: 5.4-15.2). Anaplasma marginale, A. centrale and A. platys were reported in all Africa's regions, while A. ovis and A. capra were reported only in the northern and central regions. The uncharacterised Anaplasma taxa were mostly detected in the eastern and southern regions. Subgroup analysis showed that significant determinants for A. marginale exposure (serology) were geographical region (p=0.0219), and longitude (p=0.0336), while the technique employed influenced (p<0.0001) prevalence in direct detection approaches. Temperature was the only significant variable (p=0.0269) for A. centrale. These findings show that various Anaplasma species, including those that are zoonotic, circulate in African cattle. There is need for more genetic and genome data, especially for unrecognised species, to facilitate effective identification, improve livestock and minimise the health risk in human populations. Additional epidemiological data including pathogen occurrence, tick vectors and host range, as well as pathogenicity are essential.
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Affiliation(s)
- Claire Julie Akwongo
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino 1, Napoli 80137, Italy
| | - Charles Byaruhanga
- Vectors and Vector-Borne Diseases Research Programme, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria 0110, South Africa; National Agricultural Research Organisation, P.O. Box 259, Entebbe, Uganda
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IGARASHI H, NAGAI N, YAMADA Y, ITO T, NEO S, GOTO-KOSHINO Y, KANAI E, AIHARA N, TAKAGI S, KAMIIE J, HISASUE M. A canine case of Ehrlichia canis infection without a history of being in an endemic area in Japan. J Vet Med Sci 2024; 86:354-357. [PMID: 38355119 PMCID: PMC11061565 DOI: 10.1292/jvms.23-0486] [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: 12/06/2023] [Accepted: 02/02/2024] [Indexed: 02/16/2024] Open
Abstract
A mixed-breed, 8-year-old male dog developed neutropenia, thrombocytopenia, and hyperglobulinemia. Bone marrow hyperplasia and splenic plasmacytosis were cytologically observed. The dog had never been outside of Tokyo or Shizuoka Prefecture. Splenectomy was performed to confirm and remove the cause of splenic plasmacytosis. A histopathological diagnosis of splenic plasmacytoma was made; however, serum protein electrophoresis showed polyclonal gammopathy. Further screening was performed, and Ehrlichia canis infection was confirmed. The dog was treated with doxycycline for 5 weeks. After the antibiotic therapy, no relapse of neutropenia, thrombocytopenia, hyperglobulinemia, or positive polymerase chain reaction result of E. canis infection was observed for 3 years. Careful attention should be given to ehrlichiosis when exploring the cause of pancytopenia or hyperglobulinemia, regardless of the travel history.
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Affiliation(s)
- Hirotaka IGARASHI
- Veterinary Teaching Hospital of Azabu University, Kanagawa,
Japan
- Laboratory of Small Animal Internal Medicine, School of
Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Naoyuki NAGAI
- Veterinary Teaching Hospital of Azabu University, Kanagawa,
Japan
| | - Yoko YAMADA
- Laboratory of Small Animal Internal Medicine, School of
Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Tetsuro ITO
- Veterinary Teaching Hospital of Azabu University, Kanagawa,
Japan
| | - Sakurako NEO
- Veterinary Teaching Hospital of Azabu University, Kanagawa,
Japan
| | - Yuko GOTO-KOSHINO
- Department of Veterinary Internal Medicine, Graduate School
of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Eiichi KANAI
- Veterinary Teaching Hospital of Azabu University, Kanagawa,
Japan
| | - Naoyuki AIHARA
- Laboratory of Veterinary Pathology, School of Veterinary
Medicine, Azabu University, Kanagawa, Japan
| | - Satoshi TAKAGI
- Veterinary Teaching Hospital of Azabu University, Kanagawa,
Japan
| | - Junichi KAMIIE
- Laboratory of Veterinary Pathology, School of Veterinary
Medicine, Azabu University, Kanagawa, Japan
| | - Masaharu HISASUE
- Veterinary Teaching Hospital of Azabu University, Kanagawa,
Japan
- Laboratory of Small Animal Internal Medicine, School of
Veterinary Medicine, Azabu University, Kanagawa, Japan
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Tian J, Liu J, Lu M, Chen X, Li K. Molecular evidence of Anaplasma spp. in blood-sucking flies from China and identification of a putative novel Anaplasma species. Microb Pathog 2023; 183:106318. [PMID: 37619912 DOI: 10.1016/j.micpath.2023.106318] [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: 06/06/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 08/26/2023]
Abstract
Tabanids and stomoxes are important mechanical vectors for the transmission of pathogens. Although the agents they transmitted have been well studied, bacteria of the genus Anaplasma harbored by these flies have never been reported in China. In this study, 262 blood-sucking flies (128 Stomoxys calcitrans, 45 Tabanus birmanicus, 69 Tabanus hypomacros, and 20 Tabanus taiwanus) were collected from the Wuhan and Nanping cities of China. Anaplasma marginale, Anaplasma bovis, and Candidatus Anaplasma cinensis are detected in S. calcitrans from Wuhan City, with positive rates of 15.63%, 1.56%, and 7.81%, respectively. Out of our expectations, a putative novel Anaplasma species was identified in all three tabanid species (40.00% in T. birmanicus, 15.94% in T. hypomacros, and 10.00% in T. taiwanus) from Nanping City. The 16 S rRNA and groEL gene sequences have highest 99.37-99.75% and 91.46% identities to A. marginale, while the gltA gene sequences have highest 88.34% identity to Anaplasma centrale. In the phylogenetic trees, these strains form a distinct clade. Herein we name it "Candidatus Anaplasma nanpingensis". The present study shows the existence of multiple Anaplasma species in blood-sucking flies in China. This may be the first report that blood-sucking flies harbor Anaplasma in China.
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Affiliation(s)
- Junhua Tian
- Wuhan Center for Disease Control and Prevention, 430024, Wuhan City, Hubei Province, China
| | - Jing Liu
- Wuhan Center for Disease Control and Prevention, 430024, Wuhan City, Hubei Province, China
| | - Miao Lu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 102206, Changping District, Beijing City, China
| | - Xiaomin Chen
- Wuhan Center for Disease Control and Prevention, 430024, Wuhan City, Hubei Province, China
| | - Kun Li
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 102206, Changping District, Beijing City, China.
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Lin Y, Zhou S, Upadhyay A, Zhao J, Liao C, Guan Q, Wang J, Han Q. Molecular Detection and Phylogenetic Characterization of Anaplasma spp. in Dogs from Hainan Province/Island, China. Vet Sci 2023; 10:vetsci10050339. [PMID: 37235422 DOI: 10.3390/vetsci10050339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Anaplasmosis is a serious infection which is transmitted by ticks and mosquitos. There are very few reports and studies that have been carried out to understand the prevalence, distribution, and epidemiological profile of Anaplasma spp. infection in dogs in Hainan province/island. In the present study, we have tried to understand the prevalence, distribution, and occurrence of Anaplasma spp. infections in dogs (n = 1051) in Hainan Island/Province to establish a surveillance-based study. The confirmed positive samples by Polymerase chain reaction (PCR) were subjected to capillary sequencing for further strain-specific confirmation, followed by the construction of phylogenetic trees to determine their genetic relations. Various statistical tools were used to analyze related risk factors. There were three species of Anaplasma detected from the Hainan region; namely, A. phagocytophilum, A. bovis, and A. platys. The overall prevalence of Anaplasma is 9.7% (102/1051). A. phagocytopihum was prevalent in 1.0% of dogs (11/1051), A. bovis was found in 2.7% of dogs (28/1051), and A. platys in 6.0% of dogs (63/1051). Our surveillance-based study conducted to understand the occurrence and distribution pattern of Anaplasma spp. in Hainan will help in designing effective control measures along with management strategies so as to treat and control the infection in the area.
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Affiliation(s)
- Yang Lin
- One Health Institute, Hainan University, Haikou 570228, China
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China
| | - Sa Zhou
- One Health Institute, Hainan University, Haikou 570228, China
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China
| | - Archana Upadhyay
- One Health Institute, Hainan University, Haikou 570228, China
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China
| | - Jianguo Zhao
- One Health Institute, Hainan University, Haikou 570228, China
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China
| | - Chenghong Liao
- One Health Institute, Hainan University, Haikou 570228, China
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China
| | - Qingfeng Guan
- One Health Institute, Hainan University, Haikou 570228, China
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China
| | - Jinhua Wang
- One Health Institute, Hainan University, Haikou 570228, China
- College of Animal Science and Technology, Hainan University, Haikou 570228, China
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China
| | - Qian Han
- One Health Institute, Hainan University, Haikou 570228, China
- Laboratory of Tropical Veterinary Medicine and Vector Biology, School of Life Sciences, Hainan University, Haikou 570228, China
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El Hamiani Khatat S, Daminet S, Duchateau L, Elhachimi L, Kachani M, Sahibi H. Epidemiological and Clinicopathological Features of Anaplasma phagocytophilum Infection in Dogs: A Systematic Review. Front Vet Sci 2021; 8:686644. [PMID: 34250067 PMCID: PMC8260688 DOI: 10.3389/fvets.2021.686644] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 05/17/2021] [Indexed: 11/13/2022] Open
Abstract
Anaplasma phagocytophilum is a worldwide emerging zoonotic tick-borne pathogen transmitted by Ixodid ticks and naturally maintained in complex and incompletely assessed enzootic cycles. Several studies have demonstrated an extensive genetic variability with variable host tropisms and pathogenicity. However, the relationship between genetic diversity and modified pathogenicity is not yet understood. Because of their proximity to humans, dogs are potential sentinels for the transmission of vector-borne pathogens. Furthermore, the strong molecular similarity between human and canine isolates of A. phagocytophilum in Europe and the USA and the positive association in the distribution of human and canine cases in the USA emphasizes the epidemiological role of dogs. Anaplasma phagocytophilum infects and survives within neutrophils by disregulating neutrophil functions and evading specific immune responses. Moreover, the complex interaction between the bacterium and the infected host immune system contribute to induce inflammatory injuries. Canine granulocytic anaplasmosis is an acute febrile illness characterized by lethargy, inappetence, weight loss and musculoskeletal pain. Hematological and biochemistry profile modifications associated with this disease are unspecific and include thrombocytopenia, anemia, morulae within neutrophils and increased liver enzymes activity. Coinfections with other tick-borne pathogens (TBPs) may occur, especially with Borrelia burgdorferi, complicating the clinical presentation, diagnosis and response to treatment. Although clinical studies have been published in dogs, it remains unclear if several clinical signs and clinicopathological abnormalities can be related to this infection.
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Affiliation(s)
- Sarah El Hamiani Khatat
- Department of Medicine, Surgery and Reproduction, Hassan II Institute of Agronomy and Veterinary Medicine, Rabat, Morocco
| | - Sylvie Daminet
- Department of Companion Animals, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| | - Luc Duchateau
- Department of Comparative Physiology and Biometrics, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| | - Latifa Elhachimi
- Department of Pathology and Veterinary Public Health, Unit of Parasitology, Hassan II Institute of Agronomy and Veterinary Medicine, Rabat, Morocco
| | - Malika Kachani
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA, United States
| | - Hamid Sahibi
- Department of Pathology and Veterinary Public Health, Unit of Parasitology, Hassan II Institute of Agronomy and Veterinary Medicine, Rabat, Morocco
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Qurollo BA, Stillman BA, Beall MJ, Foster P, Hegarty BC, Breitschwerdt EB, Chandrashekar R. Comparison of Anaplasma and Ehrlichia species-specific peptide ELISAs with whole organism-based immunofluorescent assays for serologic diagnosis of anaplasmosis and ehrlichiosis in dogs. Am J Vet Res 2020; 82:71-80. [PMID: 33369490 DOI: 10.2460/ajvr.82.1.71] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To compare the performance of 5 synthetic peptide-based ELISAs with that of 3 commercially available immunofluorescent assays (IFAs) for serologic diagnosis of anaplasmosis and ehrlichiosis in dogs. SAMPLE A convenience set of 109 serum samples obtained before and at various times after inoculation for 23 dogs that were experimentally infected with Anaplasma phagocytophilum, Anaplasma platys, Ehrlichia canis, Ehrlichia chaffeensis, or Ehrlichia ewingii and 1 uninfected control dog in previous studies. PROCEDURES All serum samples were assessed with 5 synthetic peptide-based ELISAs designed to detect antibodies against A phagocytophilum, A platys, E canis, E chaffeensis, and E ewingii and 3 whole organism-based IFAs designed to detect antibodies against A phagocytophilum, E canis, and E chaffeensis. The species-specific seroreactivity, cross-reactivity with the other tick-borne pathogens (TBPs), and diagnostic sensitivity and specificity were calculated for each assay and compared among assays. RESULTS All serum samples obtained from dogs experimentally infected with a TBP yielded positive results on a serologic assay specific for that pathogen. In general, sensitivity was comparable between ELISAs and IFAs and tended to increase with duration after inoculation. Compared with the IFAs, the corresponding ELISAs were highly specific and rarely cross-reacted with antibodies against other TBPs. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that peptide-based ELISAs had enhanced specificity relative to whole organism-based IFAs for detection of antibodies against Anaplasma and Ehrlichia spp, which should facilitate accurate diagnosis and may help detect dogs coinfected with multiple TBPs.
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Yang B, Ye C, Sun E, Wen Y, Qian D, Sun H. First molecular evidence of Anaplasma spp. co-infection in stray dogs from Anhui, China. Acta Trop 2020; 206:105453. [PMID: 32199907 DOI: 10.1016/j.actatropica.2020.105453] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 11/24/2022]
Abstract
Anaplasma species are obligate intracellular pathogens that threaten the health of both humans and animals worldwide. This study aimed to determine the prevalence of Anaplasma species in stray dogs in Anhui Province, China. Blood samples from 201 apparently healthy stray dogs were collected from August 2017 to January 2018, and Anaplasma spp. infection in these dogs was evaluated by nested PCR and phylogenetic analysis. The overall infection rate of Anaplasma spp. in stray dogs was 38.3% (77/201). The prevalences of single infection of A. platys, A. phagocytophilum and A. ovis were 15.4%, 11.9%, and 8.5%, respectively. Co-infection rate of A. platys and A. phagocytophilum was 1.5% and that of A. platys and A. ovis was 0.5%. Co-infection by these three pathogens was found in one sample (0.5%). This is the first report of Anaplasma spp. infections in stray dogs from Anhui, China.
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Peng Y, Zhao S, Wang K, Song J, Yan Y, Zhou Y, Shi K, Jian F, Wang R, Zhang L, Ning C. A Multiplex PCR Detection Assay for the Identification of Clinically Relevant Anaplasma Species in Field Blood Samples. Front Microbiol 2020; 11:606. [PMID: 32318051 PMCID: PMC7154085 DOI: 10.3389/fmicb.2020.00606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 03/18/2020] [Indexed: 11/13/2022] Open
Abstract
The genus Anaplasma (Rickettsiales: Anaplasmataceae), which includes the species Anaplasma capra, Anaplasma bovis, Anaplasma ovis, and Anaplasma phagocytophilum, is responsible for a wide variety of infections in both human and veterinary health worldwide. Multiple infections with these four Anaplasma pathogens have been reported in many cases. We introduce a novel multiplex PCR for the simultaneous detection of A. capra, A. bovis, A. ovis, and A. phagocytophilum, based on species-specific primers against the groEL (A. capra and A. bovis), msp4 (A. ovis), and 16S rRNA (A. phagocytophilum) genes. To verify the specificity of the PCR reactions, we evaluated four sets of primers to analyze samples containing different blood pathogens. The sensitivity of the multiplex PCR was evaluated by amplifying 10-fold dilutions of total genomic DNA extracted from sheep blood infected with A. capra, A. bovis, A. ovis, or A. phagocytophilum. The reproducibility of the assay was evaluated by testing 10-fold dilutions of total genomic DNA extracted from sheep blood infected with these pathogens from 100 to 10–3 ng/μL per reaction in triplicate on three different days. A total of 175 field blood DNA samples were used to evaluate the reproducibility of multiplex PCR compared with the simplex PCRs. PCR primers used in this study were confirmed to be 100% species-specific using blood pathogens previously identified by other methods. The lower limit of detection of the multiplex PCR with good repeatability enabled the detection of A. capra, A. bovis, A. ovis and A. phagocytophilum at concentrations of 3 × 10–5, 5 × 10–7, 2 × 10–5, and 7 × 10–7 ng/μL, respectively. There was no significant difference between conventional and multiplex PCR protocols used to detect the four Anaplasma species (P > 0.05). The results of the multiplex PCR revealed that the A. capra groEL gene, the A. bovis groEL gene, the A. ovis msp4 gene, and the A. phagocytophilum 16S rRNA gene were reliable target genes for species identification in clinical isolates, being specific for each of the four target Anaplasma species. Our study provides an effective, sensitive, specific, and accurate tool for the rapid differential clinical diagnosis and epidemiological surveillance of Anaplasma pathogens in sheep and goats.
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Affiliation(s)
- Yongshuai Peng
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.,College of Animal Medical Science, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Shanshan Zhao
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Kunlun Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Jinxing Song
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yaqun Yan
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yongchun Zhou
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Ke Shi
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Fuchun Jian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Rongjun Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Longxian Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.,International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, China
| | - Changshen Ning
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.,International Joint Research Laboratory for Zoonotic Diseases of Henan, Zhengzhou, China
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Fukui Y, Inokuma H. Molecular Detection of Anaplasma phagocytophilum from Larvae of Haemaphysalis longicornis in Ibaraki, Japan. Jpn J Infect Dis 2019; 72:423-425. [PMID: 31257244 DOI: 10.7883/yoken.jjid.2019.076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We collected 1,084 ticks by flagging vegetation in Tsukuba and Moriya (Ibaraki, Japan), where several cases of canine granulocytic anaplasmosis were reported. The DNA of the collected ticks was molecularly examined for infection with the family Anaplasmataceae. Twenty-six positive samples of Anaplasmataceae-specific PCR of partial 16S rRNA gene were subjected to semi-nested PCR, covering the divergent regions, the gene, and sequence analysis. Anaplasma phagocytophilum was detected in 3 pools of Haemaphysalis longicornis larvae and A. bovis from a H. flava male. Sequences of both amplicons had high homologies to those from dogs in our previous studies in Ibaraki. These results suggest that Haemaphysalis ticks are candidate vectors of A. phagocytophilum and A. bovis in Ibaraki, Japan.
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Affiliation(s)
- Yuichi Fukui
- Komachi Animal Hospital.,United Graduate School of Veterinary Science, Gifu University
| | - Hisashi Inokuma
- United Graduate School of Veterinary Science, Gifu University.,Department of Veterinary Clinical Science, Obihiro University of Agriculture and Veterinary Medicine
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