Prevalence and molecular characterization of Anaplasma phagocytophilum in roe deer (Capreolus capreolus) from Spain

被引:15
作者
Remesar, Susana [1 ]
Diaz, Pablo [1 ]
Prieto, Alberto [1 ]
Garcia-Dios, David [1 ]
Fernandez, Gonzalo [1 ]
Lopez, Ceferino M. [1 ]
Panadero, Rosario [1 ]
Diez-Banos, Pablo [1 ]
Morrondo, Patrocinio [1 ]
机构
[1] Univ Santiago de Compostela, Fac Vet, Invest Sanidad Anim Galicia Grp INVESAGA, Lugo, Spain
关键词
Anaplasma phagocytophilum; Roe deer; groESL; 16S rRNA; TICK-BORNE PATHOGENS; HUMAN GRANULOCYTIC EHRLICHIOSIS; BURGDORFERI SENSU-LATO; BORRELIA-BURGDORFERI; IXODES-RICINUS; BABESIA SPP; WILD RUMINANTS; INFECTION; AGENT; COINFECTION;
D O I
10.1016/j.ttbdis.2019.101351
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Anaplasma phagocytophilum can infect a wide range of vertebrates; nevertheless, some genetic variants are associated with particular species of tick vectors and animal hosts. It has been suggested that roe deer (Capreolus capreolus) mainly acts as a reservoir of several A. phagocytophilum non-pathogenic variants for other animal species. The aim of this study was to determine the prevalence and identify the genetic variants of A. phagocytophilum in roe deer from Spain in order to assess host-pathogen associations and their pathogenic potential. The spleens of 212 roe deer hunted in Spain were individually collected and analysed by a commercial qPCR kit in order to detect the presence of A. phagocytophilum DNA. Positive samples were further characterized at groESL, 16S rRNA and msp2 partial genes. The possible influence of several intrinsic (age and sex) and extrinsic factors (ecological area) on A. phagocytophilum prevalence was analysed using a logistic regression. Overall, 41.5 % of the samples resulted positive to A. phagocytophilum. The percentage of infected roe deer was significantly higher in the Mediterranean and Oceanic areas than in the Continental and Mountain regions; nevertheless, prevalence was not related to age or sex. Sequence analysis at groESL and 16S rRNA genes allowed the identification of three ecotypes (I to III) and four variants ("Y", "X", "W", "I"), respectively. A high percentage of roe deer from Spain is infected with different variants of A. phagocytophilum; these results have implications for public and animal health since some of these ecotypes and variants have been previously identified in both human and animal clinical cases.
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页数:7
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