ArticleParasites & vectors2022
Old zoonotic agents and novel variants of tick-borne microorganisms from Benguela (Angola), July 2017.
Article in Parasites & vectors, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Tick-Borne Diseases in Sub-Saharan Africa: A Systematic Review of Pathogens, Research Focus, and Implications for Public Health.Pathogens (Basel, Switzerland) · 2024Pooled it
- Nanopore sequencing reveals a diversity of microorganisms in ticks from Ethiopia.Parasitology research · 2025Article
- Cattle Zoonotic and Non-Zoonotic Tick-Borne Pathogens in Europe-A Retrospective Analysis of the Past 15 Years.Animals : an open access journal from MDPI · 2025Review
- Genomic characteristics of emerging human pathogeniScience · 2025Article
- Ticks From Mink and Their Associated Microorganisms in Spain.Transboundary and emerging diseases · 2025Article
- Molecular screening of piroplasms and Anaplasmataceae agents in Hyalomma dromedarii ticks from camels over different seasons in Egypt.Experimental & applied acarology · 2024Article
- Infection Rates and Characterisation ofMicroorganisms · 2024Article
- Molecular Detection and Characterization of Rickettsia Species in Ixodid Ticks from Selected Regions of Namibia.Microorganisms · 2024Article
- Distribution and Prevalence ofMicroorganisms · 2023Review
- First report of spotted fever groupFrontiers in microbiology · 2023Article
- Molecular detection of Ehrlichia spp. in ticks parasitizing wild lagomorphs from Spain: characterization of a novel Ehrlichia species.Parasites & vectors · 2022Article
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7 authors.
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Abstract
backgroundTicks and tick-borne diseases constitute a real threat for the livestock industry, which is increasing in Angola. In addition, ticks are vectors of zoonoses of public health concern, and scarce information is available from this country. In an effort to contribute to the prevention of zoonotic infectious diseases affecting humans and animals, the molecular screening of certain tick-related microorganisms collected on cattle in Angola was performed under a 'One Health' scope.
methodsTicks collected from cattle in Cubal (Benguela Province, Angola) in July 2017 were analysed in pools using specific PCR assays for bacteria (Rickettsia, Anaplasmataceae, Borrelia, Coxiella and Spiroplasma) and protozoa (Theileria and Babesia) detection.
resultsA total of 124 tick specimens were grouped in 25 pools (two Amblyomma variegatum, three Hyalomma truncatum, 16 Rhipicephalus decoloratus, two Rhipicephalus duttoni, one Rhipicephalus evertsi mimeticus and one Rhipicephalus sp.). The amplified microorganisms were (pools): Rickettsia africae (two A. variegatum and one R. decoloratus), Rickettsia aeschlimannii (three H. truncatum), Ehrlichia spp. (six R. decoloratus), Coxiella spp. (all but H. truncatum), Francisella sp. (one H. truncatum), Spiroplasma sp. closely related to Spiroplasma ixodetis (three R. decoloratus), Babesia bigemina (two R. decoloratus) and Babesia spp. (two A. variegatum). The obtained nucleotide sequences from Ehrlichia spp., two Coxiella genotypes (from R. duttoni and Rhipicephalus sp.), Francisella sp. and Babesia spp. (from A. variegatum) reached low identities with known genetically characterized species.
conclusionsThis study demonstrates the circulation in Angola of the pathogen R. aeschlimannii and potential novel tick-related microorganisms belonging to Ehrlichia, Coxiella, Francisella, Spiroplasma and Babesia spp. and corroborates the presence of R. africae and B. bigemina. Our results should be considered in developing protocols for the management of fever of unknown origin and for veterinary practices. Further studies are required to evaluate the risk of tick-borne diseases in Angola.
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