Our Team
Investigators
Dr. Stephen Rich
Dr. Rich’s research is largely based on his interest in zoonotic diseases. The diseases studied primarily in his lab are vector-borne zoonoses, i.e., those whose transmission is facilitated by a blood-feeding arthropod. In particular, he has focused most of his efforts on the study of Lyme Borreliosis (Lyme Disease) and human malaria.
While his formal training and background are in molecular evolution and population genetics, he has multidisciplinary interests and studies. He welcomes prospective students and/or post-docs with common interests to contact me and discuss opportunities for joining the group. In science, he is self-described as “incurably curious and always looking for new questions to ask and answer.”
Dr. Guang Xu
Dr. Guang Xu is an entomologist specializing in ticks and tick-borne diseases. His current research focuses on identifying human-biting ticks in the US and conducting molecular surveys of emerging tick- and mosquito-borne pathogens impacting human health.
He received his PhD in Entomology and Pest Management from the Chinese Academy of Agricultural Sciences in 1998.
Dr. Patrick Pearson
Dr. Pearson is interested in studying the basic biology of vectors and their pathogens, and developing practical approaches to limit their public health burden.
He received his PhD in Microbiology from UMass Amherst
Our Team
Eric Lawrence Siegel
The aetiological agent of Lyme disease in the United States, Borrelia burgdorferi sensu stricto, harbours a unique pathway of purine salvage essential for spirochaete nucleotide biosynthesis under extracellular mammalian tissue conditions. Eric studies the molecular physiology of this pathway through a translational lens, focused on exploiting environment-dependent patterns of gene essentiality for the development of innovative molecular diagnostics and reservoir host-targeted interventions.
Education:
M.Sc. Veterinary Epidemiology (2022, The Royal Veterinary College)
B.S. Pre-Veterinary Science (2021, UMass Amherst)
B.S. Public Health Sciences (2021, UMass Amherst)
Doctoral Candidate, Microbiology
Owen Deane
Owen is responsible for doing extractions, so the samples can be tested for pathogens using PCR. In his free time, he enjoys fishing.
Education:
B.S., Wildlife and Fisheries Biology, University of Vermont, 2025
Laboratory Technician
Laboratory TechnicianArden Clarke-DeGrenier
Arden works on a protocol that extracts DNA from samples, which contributes to tick species, pathogen, and virus research. She likes to garden in her free time.
Education:
B.S. Environmental Science, University of Vermont, 2025
Anjali Kannan
Anjali is interested in the immunology of white-tailed deer and vector-borne disease overall from different perspectives. Anjali also loves Snoopy and plants.
Education:
B. S. Biology, Harriet L. Wilkes Honors College, FAU, 2025
Master’s Student, Microbiology
Jacqueline Borges
Jaqueline’s researches protozoan parasites of white-tailed deer and their corresponding arthropod vectors. Current projects pertain to the abundance and distribution of these organisms. She has a long-standing passion for entomology and parasitology and regularly collects arthropod specimens.
Education:
B.S., Microbiology, University of Massachusetts, 2025
Master’s Student, Microbiology
Master's Student, MicrobiologyA.J. Wilson
A.J.’s research focuses on creating an artificial tick feeding system. He is also a full-time teaching lab manager in the biomedical engineering department at UMass where he maintains lab spaces for undergraduate courses.
Education:
B.S., Biochemistry & Molecular Biology, UMass Amherst, 2022
Nolan Stamborski
Nolan studies molecular methods to improve mosquito and tick pathogen surveillance. He is also an expert in tick identification, identifying thousands of ticks from all over the United States and testing them for pathogens. A personal goal of his is to visit every national park in the United States.
Education:
B.S. University of Massachusetts Amherst, 2022
Master’s Student, Microbiology
Mileena Ryan
Mileena’s research interests include deer biology and public health. Her interests outside the lab include snowboarding and hiking.
Education:
B.S., Public Health Sciences, University of Massachusetts Amherst, 2024
Master’s Student, Microbiology
Senior Undergraduate, B.S. Microbiology Commonwealth Honor’s CollegeMark Mendoza
Mark prepares reagents and sample transfers for DNA extractions. His honor’s thesis in the laboratory is focused on understanding aspects of acaricide control of blacklegged ticks. Outside of the lab, he enjoys playing and listening to music and is on the pre-med track.
Behanka Adonis
In the lab, Behanka is doing a capstone project focused on understanding genes in Borrelia burgdorferi. She is also trilingual and on the pre-med track.
Senior Undergraduate, B.S. Biochemistry
Dakota Shatto-Ravalli
Dakota is a Boston native and interested in molecular biology, neurophysiology, and biostatistics.
Junior Undergraduate, B.S. Biology
Junior Undergraduate, B.S. Pre-veterinary sciencMartha Leo
Martha works to in-process ticks in lab by performing identification and taking microscopic images that are taken from white-tailed deer. She is interested in animal pathogens.
Karen Bae
Karen is working on an independent study project on tick spatial repellency.She was a William Lee Science Impact Program Scholar this past summer 2025 working in this lab.
Junior Undergraduate, B.S. Pre-Veterinary Science Commonwealth Honor’s College
Sofia Black
Sofia is working on an independent study project on tick behavioral ecology. She has spent extensive time performing nucleic acid extractions and working on culturing projects with Eric Siegel. Sofia loves animals and is looking forward to going to vet school.
Junior Undergraduate, B.S. Pre-Veterinary Science Commonwealth Honor’s College
Junior Undergraduate, B.S. Microbiology Commonwealth Honor’s CollegeLillian Kaempffer
In the lab, Lillian analyzes pathogen samples using microscopes to better understand structure and behavior. She performs DNA extractions on ticks to identify the pathogens they carry. At home, she works as a medical assistant in dermatology, where she regularly observe and learn about the skin conditions associated with tick bites.
Emily Schiller
Emily works on lab projects applying techniques such as DNA extraction and PCR. She is gaining skills to complete research for her honors thesis in the future. She is a horseback rider and own and loves her horse which is named Eco-Friendly.
Sophomore Undergraduate, B.S. Animal Science
Elliot Tick
Elliot does all things media for the lab, as well as being a lab assistant and preparing materials. She created this website and photographs of the lab. Along with taking photos and videos for the lab, she keeps the website and social platforms up to date. Elliot is the lab’s first human Tick.
Sophomore Undergraduate, B.A. Political Science
Sophomore Undergraduate, B.S. BiochemistryTuan Kiet Nguyen Phan
Kiet helps around the lab doing various tasks like pipetting or cleaning the lab. Kiet also helps other undergraduate students with their research projects. He enjoys going fishing in their free time.
Our Location
270 Stockbridge Road, Amherst, Massachusetts 01003
Phone
(413) 545-1057