A5033239081- Vector-borne infectious diseases
- Viral Infections and Vectors
- Mosquito-borne diseases and control
- Vector-Borne Animal Diseases
- Malaria Research and Control
- Insect and Pesticide Research
- Parasite Biology and Host Interactions
- Insect Pest Control Strategies
- Physiological and biochemical adaptations
- Insect symbiosis and bacterial influences
- Insect-Plant Interactions and Control
Centers for Disease Control and Prevention
2024-2025
National Center for Emerging and Zoonotic Infectious Diseases
2024
University of Arizona
2022-2023
The brown dog tick, Rhipicephalus sanguineus sensu lato (s.l.), is an important vector for Rickettsia rickettsii, causative agent of Rocky Mountain spotted fever. Current public health prevention and control efforts to protect people involve preventing tick infestations on domestic animals in around houses. Primary tools rely acaricides, often synthetic pyrethroids (SPs); resistance this chemical class widespread ticks other arthropods. s.l. a complex that likely contains multiple unique...
Rocky Mountain spotted fever (RMSF) is an ongoing public health crisis in Mexico, particularly states bordering the United States. The national highest incidence and mortality of RMSF occur this region, resulting a case-fatality rate that ranges annually between 10% 50%, primarily affecting vulnerable groups such as children, elderly adults, persons living poverty. Multiple biological, environmental, social determinants can explain its growing presence throughout country how it challenges...
Rhipicephalus sanguineus s.l. (Latreille, 1806), the brown dog tick, is most widely distributed tick species in world. The two dominant lineages, a temperate group and tropical group, are recognized as important disease vectors for both dogs humans. lineages overlap range some regions of world, including southwestern United States, where recent outbreaks Rocky Mountain spotted fever linked to R. While it unclear what extent they may differ their capacity transmit pathogens, finer-scale...
Given that older Aedes aegypti (L.) mosquitoes typically pose the greatest risk of pathogen transmission, capacity to age grade wild Ae. mosquito populations would be a valuable tool in monitoring potential arboviral transmission. Here, we compared effectiveness near-infrared spectroscopy (NIRS) field-collected with two alternative techniques-parity analysis and transcript abundance age-associated gene SCP1. Using lab-reared known ages from three distinct maintained as adults under...
Highlights• SNP T2134C in voltage-gated sodium channel gene common tropical lineage ticks• Rhipicephalus sanguineus widely distributed United States• Likely multiple copies of the GABA-gated chloride Rh. sanguineus• Rickettsia rickettsii and R. massiliae not detected any examined Low phylogenetic resolution with mitochondrial fragments
Nonpathogenic bacteria likely play important roles in the biology and vector competence of ticks other arthropods. Coxiella, a gram-negative gammaproteobacterium, is one most commonly reported maternally inherited endosymbionts has been associated with over 40 tick species. Species-specific Coxiella-like (CLEs) have brown dog tick, Rhipicephalus sanguineus sensu lato (Acari: Ixodidae), throughout world, while recent research suggests low Coxiella diversity among We investigated CLE R. s.l....
Dengue transmission is determined by a complex set of interactions between the environment, Aedes aegypti mosquitoes, dengue viruses, and humans. Emergence in new geographic areas can be unpredictable, with some regions having established mosquito populations for decades without locally acquired transmission. Key factors such as longevity, temperature-driven extrinsic incubation period (EIP), vector-human contact strongly influence potential disease To assess how these interact at edge...