Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Background: Jingmen tick virus (JMTV) is a novel tick-borne virus detected for the first time in Rhipicephalus (Boophilus) microplus in China. To date, there is no information regarding the circulation of JMTV in ticks collected from livestock in Cameroon. As part of the surveillance for arboviral circulation, this study aimed to assess the presence of JMTV in ticks collected from livestock (cattle and sheep) in an area of the Akonolinga health district, Center Region, Cameroon.
Methods: A cross sectional study was carried out during the dry season between 5 and 14 March 2024. Ticks were collected from cattle and sheep in six sampling sites in an area approximately 30 km long and 18 km wide along the Nyong River, in central Cameroon. Ticks were identified morphologically and molecularly. Total RNA/DNA was extracted from tick pools and screened for JMTV RNA using a segment 2 RT-qPCR system. Positive JMTV pools were sequenced for partial JMTV-Segment 1 and full genome analyses.
Results: A total of 622 ticks, organized into 251 pools were collected from 155 cattle and nine sheep. They consisted of five species covering three genera: R. (B.) microplus (472; 75.9%), Amblyomma variegatum (118; 19.0%), Hyalomma truncatum (13; 2.1%), Hyalomma rufipes (2; 0.3%), and other Rhipicephalus spp. (17; 2.7%). The quantitative reverse transcription polymerase chain reaction (qRT-PCR) screening of 251 tick pools yielded 61 JMTV-positive pools, of which 58 corresponded to R. (B.) microplus. Multiple sequence analysis revealed that JMTV from the Akonolinga area shared > 95% identity with strains from Guinea, and that these strains clustered phylogenetically together.
Conclusions: We provide molecular evidence of the presence of JMTV in R. (B.) microplus and A. variegatum collected from cattle and sheep from an area not yet recognized as endemic for this virus, confirming its wide geographical distribution.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11796043 | PMC |
| http://dx.doi.org/10.1186/s13071-025-06670-w | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Seroprevalence and regional risk assessment of bluetongue virus among livestock in Central Saudi Arabia.
Vet World
July 2025
Department of Clinical Laboratory Science, Chair of Medical and Molecular Genetics Research, College of Applied Medical Science, King Saud University, Riyadh, Saudi Arabia.
Background And Aim: Bluetongue virus (BTV), an arbovirus of major economic importance, affects domestic and wild ruminants globally and is primarily transmitted by Culicoides biting midges. The virus is endemic in many regions, yet limited data are available for Saudi Arabia. This study aimed to determine the seroprevalence of BTV antibodies in cattle, goats, sheep, and camels across two ecologically distinct regions in central Saudi Arabia and to assess species- and region-specific risk profiles.
View Article and Find Full Text PDFA respirometry system designed for small ruminants.
JDS Commun
September 2025
Brazilian Agricultural Research Corporation, Juiz de Fora, Minas Gerais, Brazil, 36038-330.
This technical note describes a small ruminant respiration chamber system designed to accurately quantify the production of carbon dioxide (CO) and methane (CH). The system consists of 3 open-circuit respiration chambers, flow meters, gas analyzers, and an accessible environmental control system. To validate its performance, gas recovery tests were conducted by injecting CO and CH at 4 constant flow rates: 0.
View Article and Find Full Text PDFAnother case of sheep-associated malignant catarrhal fever in Rio Grande do Sul: the curious epidemiological niche of ovine gammaherpesvirus 2 in Southern Brazil.
J Infect Dev Ctries
August 2025
Division for the Control and Eradication of Endemic Diseases I (DICOE I), Department of Animal Health, Ministry of Agriculture and Livestock (MAPA), Brasília, Distrito Federal, Brazil.
Introduction: Ovine gammaherpesvirus 2 (OvGHV2) is the cause of sheep-associated malignant catarrhal fever (SA-MCF). Although SA-MCF is endemic in most geographical regions of Brazil, outbreaks are more frequently reported in the State of Rio Grande do Sul (RS). This report describes the findings of an SA-MCF outbreak in cattle from RS and investigates the possible reasons for the elevated occurrence of outbreaks in cattle from this geographical region of Brazil.
View Article and Find Full Text PDFspp. in livestock in Brazil: An underestimated threat to animal and human health.
Curr Res Parasitol Vector Borne Dis
August 2025
Moredun Research Institute, Pentlands Science Park, Penicuik, EH26 0PZ, Scotland, UK.
spp. infections in livestock are a significant yet underrecognized threat to both animal and human health in Brazil. This systematic review aimed to identify and synthesize available data on the geographical distribution, host species, age groups, diagnostic methods, infection rates, and species and subtypes identified, as well as to assess potential associations with diarrhea and the zoonotic impact of infections in production animals.
View Article and Find Full Text PDFHepatitis E virus (HEV) has emerged as a major agent of acute viral hepatitis, with zoonotic genotype 4 (HEV-4) representing a public health concern in China. In this study, we integrated province-wide enhanced hepatitis E surveillance data and molecular profiling from Shandong Province of eastern China, 2019-2023, with the aim of elucidating the epidemiology, genetic diversity, and clinical correlations of autochthonous HEV infections. In total, 5826 cases were reported during the study period, with 72.
View Article and Find Full Text PDF