First molecular detection of Borrelia theileri subclinical infection in a cow from Brazil

First molecular detection of Borrelia theileri subclinical infection in a cow from Brazil

Borrelia theileri is a relapsing fever group Borrelia that is transmitted to cattle by ticks of the genus Rhipicephalus . In this study, we describe the first molecular detection of B. theileri subclinical infection in a cow in Brazil. During the examination of stained blood smears of 10 cows from a...

Full description

Saved in:
Bibliographic Details
Published in:Veterinary research communications Vol. 47; no. 2; pp. 963 - 967
Main Authors: Paula, Warley Vieira de Freitas, Neves, Lucianne Cardoso, de Paula, Luiza Gabriella Ferreira, Serpa, Maria Carolina de Azevedo, de Oliveira, Fabricio Peixoto, Dantas‑Torres, Filipe, Muñoz-Leal, Sebastián, Labruna, Marcelo Bahia, Krawczak, Felipe da Silva
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 01-06-2023
Springer Nature B.V
Subjects:
Animals
Asymptomatic Infections
Biomedical and Life Sciences
Borrelia
Borrelia - genetics
Brazil - epidemiology
Brief Report
Cattle
Cattle Diseases - diagnosis
Female
Flagellin
Heart rate
Hematocrit
Infections
Life Sciences
Phylogeny
Relapsing fever
Respiration
Rhipicephalus
Spirochetes
Subclinical infection
Trypanosomiasis
Veterinary Medicine/Veterinary Science
Zoology
Brazil
Bovine borreliosis
Cerrado
PCR
Spirochete
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Borrelia theileri is a relapsing fever group Borrelia that is transmitted to cattle by ticks of the genus Rhipicephalus . In this study, we describe the first molecular detection of B. theileri subclinical infection in a cow in Brazil. During the examination of stained blood smears of 10 cows from a farm with a recent history of fatal Trypanosoma vivax trypanosomiasis, spirochete-like structures were incidentally detected in one of the cows. The animal presented good body score, normal hematocrit and normal-colored ocular mucosa. Temperature, heart rate and respiratory rate were all normal. The animal was infested by ticks, which were morphologically identified as Rhipicephalus microplus . The diagnosis was confirmed by testing DNA extracted from a blood sample using a PCR targeting a ≈ 650 bp fragment of the flagellin B ( flaB ) gene of Borrelia spp. The partial flaB sequence obtained showed 99.83% similarity with B. theileri . Phylogenetically, the flaB partial sequence generated herein clustered with other B. theileri sequences, being separated from B. lonestari . This is the first molecular detection of B. theileri subclinical infection in a cow in Brazil. The possible implications of this finding are discussed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0165-7380
1573-7446
DOI:10.1007/s11259-022-10020-x