Non-viraemic transmission of Thogoto virus: vector efficiency of Rhipicephalus appendiculatus and Amblyomma variegatum

Transactions of the Royal Society of Tropical Medicine and Hygiene
L D JonesP A Nuttall

Abstract

Previous studies have demonstrated that Thogoto virus is transmitted from infected to uninfected ticks when co-feeding on uninfected guinea-pigs, even though the guinea-pigs do not develop a detectable viraemia. Furthermore, tick to tick transmission is potentiated by factors associated with the salivary glands of ticks (saliva activated transmission). The vector efficiency of 2 ixodid tick species, Rhipicephalus appendiculatus and Amblyomma variegatum, for Thogoto virus was assessed using this model. The number of uninfected recipient ticks that acquired Thogoto virus when co-feeding with virus-infected ticks (donors) on uninfected guinea-pigs was determined. When nymphs of either tick species were employed as donors, there was no significant difference in the number of infected recipient nymphs. In contrast, a significant difference in the vector efficiency of adults ticks was observed: 77.0% of recipient ticks which co-fed with R. appendiculatus donor adults acquired Thogoto virus compared to 44.7% of recipient ticks which co-fed with A. variegatum donors. No significant difference in susceptibility to Thogoto virus infection was observed between recipient ticks of the 2 species. Thus, adults of R. appendiculatus are more ef...Continue Reading

References

Jul 1, 1990·The American Journal of Tropical Medicine and Hygiene·C R DaviesP A Nuttall
Jul 1, 1989·The Journal of General Virology·L D JonesP A Nuttall
Sep 1, 1989·Transactions of the Royal Society of Tropical Medicine and Hygiene·L D Jones, P A Nuttall
Nov 1, 1986·The American Journal of Tropical Medicine and Hygiene·C R DaviesP A Nuttall
Jan 1, 1983·Annual Review of Entomology·J L HardyW C Reeves
May 1, 1983·Virology·J P ClerxD H Bishop

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Citations

Dec 1, 2010·Transboundary and Emerging Diseases·E S M TuppurainenE H Venter
Apr 13, 2007·Journal of Medical Entomology·Kathrin F A LangnerIrene Greiser-Wilke
Apr 13, 2007·Journal of Medical Entomology·William K ReisenVincent Martinez
Dec 8, 2004·Virology·Stephanie JenningsGeorg Kochs
Mar 22, 2016·PloS One·José M C RibeiroEric Calvo
Dec 13, 2005·Anais Da Academia Brasileira De Ciências·Bruno B AndradeManoel Barral-Netto
Jun 9, 2005·Parasitology·P A Nuttall, M Labuda
Aug 12, 2017·Frontiers in Cellular and Infection Microbiology·Mária KazimírováPatricia A Nuttall
Feb 8, 2019·Frontiers in Microbiology·Yan-Jang S HuangDana L Vanlandingham
Jan 1, 1994·Clinical Microbiology Reviews·C H Calisher

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