Characterization of " Candidatus Ehrlichia Pampeana" in Haemaphysalis juxtakochi Ticks and Gray Brocket Deer ( Mazama gouazoubira ) from Uruguay

Human ehrlichiosis are scantily documented in Uruguay. The aim of this study was to investigate the presence of spp. in and in a gray brocket deer ( ) from Uruguay. The presence of DNA was investigated in free-living in five localities of southeast and northeast Uruguay, as well as blood, spleen, an...

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Bibliographic Details
Published in:Microorganisms (Basel) 2021-10, Vol.9 (10), p.2165
Main Authors: Félix, María Laura, Muñoz-Leal, Sebastián, Carvalho, Luis Andrés, Queirolo, Diego, Remesar, Susana, Armúa-Fernández, María Teresa, Venzal, José Manuel
Format: Article
Language:English
Subjects:
Anaplasmataceae
Arachnids
Bayesian analysis
Deoxyribonucleic acid
DNA
Ehrlichia
Ehrlichiosis
Epidemiology
Females
Genes
Genotypes
Haemaphysalis juxtakochi
Males
Mazama gouazoubira
Microorganisms
molecular characterization
Pathogenicity
Pathogens
Phylogenetics
Phylogeny
Rickettsiales
rRNA 16S
Spleen
Statistical inference
Ticks
Vegetation
Zoonoses
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Summary:Human ehrlichiosis are scantily documented in Uruguay. The aim of this study was to investigate the presence of spp. in and in a gray brocket deer ( ) from Uruguay. The presence of DNA was investigated in free-living in five localities of southeast and northeast Uruguay, as well as blood, spleen, and ticks retrieved from a . spp. DNA was detected in six out of 99 tick pools from vegetation, in the spleen of and in one out of five pools of ticks feeding on this cervid. Bayesian inference analyses for three loci ( rRNA, and ) revealed the presence of a new rickettsial organism, named herein as " Ehrlichia pampeana". This new detected is phylogenetically related to those found in ticks from Asia, as well as from USA and Cameroon. Although the potential pathogenicity of " . E. pampeana" for humans is currently unknown, some eco-epidemiological factors may be relevant to its possible pathogenic role, namely: (i) the phylogenetic closeness with the zoonotic agent , (ii) the evidence of parasitizing humans, and (iii) the importance of cervids as reservoirs for zoonotic spp. The molecular detection of " E. pampeana" represents the third genotype described in Uruguay.
ISSN:2076-2607
2076-2607
DOI:10.3390/microorganisms9102165