A5062989830- Viral Infections and Vectors
- Vector-borne infectious diseases
- Vector-Borne Animal Diseases
- Mosquito-borne diseases and control
- Insect and Pesticide Research
Virginia Tech
2021-2022
Abstract Over the past decade, Haemaphysalis longicornis, Asian longhorned tick, has undergone a geographic range expansion in United States, from its historical east Asia. This tick been characterized by frequent parasitism of livestock, an ability to reproduce through parthenogenesis, and transmit variety vector-borne pathogens wildlife, human hosts native range. Thus far 17 states have reported H. longicornis populations, including 38 counties Virginia. These numbers come presence-absence...
Ticks are known vectors of several viral, bacterial, and protozoal pathogens that cause disease in both humans animals. While pathogen prevalence has been studied extensively other portions the United States, surveillance studies within tick populations central Appalachian region Virginia is almost nonexistent. Two prominent species this Ixodes scapularis (the blacklegged tick) Amblyomma americanum lone star tick). In study, we collected ticks biweekly from three habitat types (forest,...
Here we report the first detection and confirmation of Powassan virus (POWV) (family: Flaviridae) in Ixodes scapularis ticks collected from Appalachian Virginia. were vegetation across field sites eight counties western Virginia June 2019 to April 2021. From these collections, one nymph adult male I. determined be positive for POWV using real-time RT-PCR Sanger sequencing. Both Floyd county, VA, at residential sites; 2020 The presence its natural tick vector is crucial knowledge beginning...
Ticks are susceptible to environmental conditions and, ensure survival during winter conditions, they adopt a wide variety of physiological and behavioral adaptations including utilization suitable niche with insulation (e.g., leaf coverage). To investigate the potential overwintering three tick populations emerging within Appalachian Virginia (Haemaphysalis longicornis, Amblyomma americanum, maculatum), both laboratory experiment assessing super-cooling points two-factor (elevation...