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Feeding of Ticks on Animals for Transmission and Xenodiagnosis in Lyme Disease Research
Published on: August 31, 2013
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Rhipicephalus simus ticks: new hosts for phleboviruses
Samuel Munalula Munjita1, Benjamin Mubemba2, John Tembo3
1Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia.
Parasitology
|November 11, 2024
Summary
A novel tick phlebovirus, LSK-ZM-102022, was discovered in Rhipicephalus simus ticks in Zambia. This finding highlights the potential for new tick-borne diseases and the need for further research.
Area of Science:
- Arthropod-borne diseases
- Virology
- Molecular epidemiology
Background:
- Ticks transmit significant pathogens to vertebrates.
- Rhipicephalus simus ticks are common and feed on humans.
- Limited data exists on phleboviruses in R. simus.
Purpose of the Study:
- To investigate the microbial content of Rhipicephalus simus ticks in Zambia.
- To identify potential novel viruses, specifically phleboviruses, in these ticks.
Main Methods:
- Metagenomic next-generation sequencing (mNGS) was performed on pooled R. simus tick samples.
- Viral sequences were analyzed for similarity to known viruses using nucleotide identity and phylogenetic analysis.
- RNA-dependent RNA polymerase (RdRp) and nucleoprotein (NP) genes were examined.
Main Results:
- A diverse microbial community was detected, including bacteria, fungi, and viruses.
- A novel viral sequence, LSK-ZM-102022, showed similarity to tick-borne phleboviruses (TBVP).
- Phylogenetic analysis placed LSK-ZM-102022 in a unique lineage within tick phleboviruses.
Conclusions:
- Rhipicephalus simus ticks harbor novel tick-borne phleboviruses.
- LSK-ZM-102022 represents a new lineage of tick phleboviruses.
- Further research is critical for understanding the public health implications of this discovery.
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