Genetic diversity of Anaplasma bacteria: Twenty years later

Рар, В. А.; Tkachev, Sergey; Tikunova, Nina

doi:10.1016/j.meegid.2021.104833

Cited by 65 publications

(86 citation statements)

References 222 publications

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“…Although Ehrlichia chaffeensis , E. ewingii and A. phagocytophilum are recognized as zoonotic agents, the role E. canis and A. platys as human pathogens is controversial ( Ismail and McBride, 2017 ; Rar et al, 2021 ). Some reports have identified E. canis and A. platys in human samples ( Arraga-Alvarado et al, 2014 ; Bouza-Mora et al, 2017 ; Perez et al, 2006 ).…”

Section: Discussionmentioning

confidence: 99%

Seroprevalence canine survey for selected vector-borne pathogens and its relationship with poverty in metropolitan Pereira, Colombia, 2020

Bonilla-Aldana

Gutiérrez-Grajales

Martínez-Arboleda

et al. 2022

Parasite Epidemiology and Control

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Section: Discussionmentioning

confidence: 99%

Seroprevalence canine survey for selected vector-borne pathogens and its relationship with poverty in metropolitan Pereira, Colombia, 2020

Bonilla-Aldana

Gutiérrez-Grajales

Martínez-Arboleda

et al. 2022

Parasite Epidemiology and Control

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“…The family comprises the genera Anaplasma, Ehrlichia, Neorickettsia, Neoehrlichia, and Wolbachia [4][5][6]. Among the most common diseases caused by this group of bacteria, human granulocytic anaplasmosis (HGA) and human granulocytic ehrlichiosis (HME) affect humans and cause similar clinical symptoms that usually start after a tick bite event [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…and Hyalomma spp. (for A. marginale) [9,10]. While E. canis is transmitted by the tropical lineage of Rhipicephalus sanguineus sensu lato [11] and Amblyomma spp., ticks are involved in the transmission of E. ewingii, E. chaffeensis, and E. ruminantum [12,13].…”

Section: Introductionmentioning

confidence: 99%

Molecular Survey of Anaplasmataceae Agents and Coxiellaceae in Non-Hematophagous Bats and Associated Ectoparasites from Brazil

et al. 2021

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The Anaplasmataceae family (order Rickettsiales) encompasses obligately intracellular bacteria of the genera Anaplasma, Ehrlichia, and Neorickettsia. Together with Coxiella burnetii (Coxiellaceae family, order Legionellales), these bacteria represent important causative agents of diseases in humans and animals. The scarcity of studies that investigated the occurrence of these agents in bats and their associated ectoparasites, emphasizes the need to achieve a better understanding of the role of these animals in the maintenance of such bacteria. Herein, 418 samples (133 blood, 135 spleen, and 150 ectoparasites) are collected from 135 non-hematophagous bats belonging to 12 species in a periurban area of Campo Grande city, Mato Grosso do Sul state, midwestern Brazil. In the results, 1.65% (7/418), 12.04% (50/418), and 13.63% (57/418) of samples are positive in PCR assays for Anaplasma spp. (16S rRNA gene), Ehrlichia spp. (dsb gene), and Neorickettsia spp. (16S rRNA gene), respectively. Anaplasma spp. and Neorickettsia spp. are detected in one (5.26%) Ornithodoros hasei tick larva. Ehrlichia spp. is detected in 14% of bat flies (represented by Megistopoda aranea, Trichobius costalimai, and Strebla hertigi), 6% of tick larvae (O. hasei), 12% of Spinturnicidae mites (represented by Periglischrus sp., P. torrealbai, and P. acutisternus), and 38% of Macronyssidae mites (Steatonyssuss sp.). The obtained sequences are observed to be similar to Anaplasma phagocytophilum (97.42–97.6% identified), Ehrlichia minasensis (96.73–100% identified), Neorickettsia risticii (96.7–100% identified), and Neorickettsia findlayensis (95.07–100% identified) by BLASTn analyses, and closely related to Ehrlichia ruminantium by phylogenetic analyses based on the gltA gene. No bat samples (blood/spleen) are positive in the qPCR assay for C. burnetii based on the IS1111 gene. The present work shows, for the first time, the occurrence of Anaplasmataceae in bats and associated ectoparasites (ticks, mites, and bat flies) from Brazil.

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“…Anaplasma , a genus of the class Alphaproteobacteria, are Gram-negative obligate intracellular pathogens which are transmitted by hard ticks to vertebrate hosts and infect different blood cells of the host [ 7 ]. In sheep and cattle, infection with these bacteria is characterized by high fever and fatigue, loss of appetite, a sudden decrease in milk production, miscarriage, stillbirth, low fertility, decreased semen quality and other clinical symptoms [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Molecular detection of Anaplasma spp., Babesia spp. and Theileria spp. in yaks (Bos grunniens) and Tibetan sheep (Ovis aries) on the Qinghai-Tibetan Plateau, China

Chen

et al. 2021

Parasites Vectors

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Background Anaplasma, Babesia and Theileria are tick-borne pathogens (TBPs) that affect livestock worldwide. However, information on these pathogens in yaks (Bos grunniens) and Tibetan sheep (Ovis aries) on the Qinghai-Tibet Plateau (QTP), China, is limited. In this study, Anaplasma spp., Babesia spp. and Theileria spp. infections were assessed in yaks and Tibetan sheep from Qinghai Province. Methods A total of 734 blood samples were collected from 425 yaks and 309 Tibetan sheep at nine sampling sites. Standard or nested polymerase chain reaction was employed to screen all the blood samples using species- or genus-specific primers. Results The results showed that 14.1% (60/425) of yaks and 79.9% (247/309) of Tibetan sheep were infected with at least one pathogen. Anaplasma ovis, Anaplasma bovis, Anaplasma capra, Anaplasma phagocytophilum, Babesia bovis and Theileria spp. were detected in this study, with total infection rates for all the assessed animals of 22.1% (162/734), 16.3% (120/734), 23.6% (173/734), 8.2% (60/734), 2.7% (20/734) and 19.3% (142/734), respectively. For yaks, the infection rate of A. bovis was 6.4% (27/425), that of B. bovis was 4.7% (20/425) and that of Theileria spp. was 3.3% (14/425). Moreover, 52.4% (162/309) of the Tibetan sheep samples were infected with A. ovis, 30.1% (93/309) with A. bovis, 56.0% (173/309) with A. capra, 19.4% (60/309) with A. phagocytophilum and 41.4% (128/309) with Theileria spp. Conclusions This study revealed the prevalence of Anaplasma spp., Babesia spp. and Theileria spp. in yaks and Tibetan sheep in Qinghai Province, China, and provides new data for a better understanding of the epidemiology of TBPs in these animals in this area of the QTP, China. Graphical Abstract

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Genetic diversity of Anaplasma bacteria: Twenty years later

Cited by 65 publications

References 222 publications

Seroprevalence canine survey for selected vector-borne pathogens and its relationship with poverty in metropolitan Pereira, Colombia, 2020

Seroprevalence canine survey for selected vector-borne pathogens and its relationship with poverty in metropolitan Pereira, Colombia, 2020

Molecular Survey of Anaplasmataceae Agents and Coxiellaceae in Non-Hematophagous Bats and Associated Ectoparasites from Brazil

Molecular detection of Anaplasma spp., Babesia spp. and Theileria spp. in yaks (Bos grunniens) and Tibetan sheep (Ovis aries) on the Qinghai-Tibetan Plateau, China

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