Professor Vasyl Tkach, a faculty member at the University of North Dakota (UND), has been recognized nationally for his contributions to both parasitology and student mentorship. Earlier this year, Tkach received the Clark P. Read Mentor Award from the American Society of Parasitologists, which honors outstanding guidance in the field.
In his acceptance speech, Tkach emphasized the collaborative nature of his work with students: “Working with my students was and is a privilege and the greatest joy of my professional life,” he told colleagues. “I consider this a shared award, as without my students I would not be able to do much. Their support and trust mean to me far more than any award.”
Tkach has spent over two decades teaching at UND, where he has inspired many students to pursue careers in biology, medicine, and research. His interest in living organisms began during his childhood in Ukraine through exploration and reading about natural history.
Initially interested in botany, specifically orchids due to their complexity, Tkach shifted focus after encountering parasitology during college at Uzhhorod State University. He credits an early mentor, Vasyl Chumak, for instilling enthusiasm for studying parasites: “His passion for parasites was absolutely infectious,” Tkach recalled.
Since then, parasites have been central to his research interests. From local flukes in Minnesota lakes to helminths found in Vietnamese bats, Tkach finds their adaptation and complex life cycles scientifically engaging.
Former student LeAnne Froese highlighted Tkach’s enthusiasm in her nomination letter when he became a Chester Fritz Distinguished Professor at UND: “He talked about parasites with such enthusiasm,” Froese wrote. “There are not too many people in this world who can find the beauty in parasites, but it soon became one of my favorite classes. His excitement for learning and all things nature was contagious.”
Tkach draws parallels between mentor-mentee relationships and mutualistic symbiosis—a concept from biology describing mutually beneficial interactions: “A good mentor-student relationship means both sides benefit,” he said. He added that adapting mentoring styles based on individual student needs is key: “We need to learn these things as soon as possible, play to their strengths, and not attempt to change anyone to be similar to you.”
Doctoral student Dawn Cleveland described Tkach as deeply involved: “Dr. Tkach was ever-present to give feedback and criticisms,” she said. “He is the most involved professor I have ever worked with, and his passion for teaching is deeply apparent.”
Fieldwork is also integral to his approach: “Fieldwork is not only necessary for our research but is the best bonding technique I know,” said Tkach.
Beyond science, he connects with students over art—a personal interest since attending art school—and prepares scientific illustrations for publications.
Tkach recounted an example of mentorship influencing career paths when former undergraduate Stephen Greiman changed plans from veterinary school toward graduate research after a collecting expedition together. Today Greiman works as a professor at Georgia Southern University.
“It is every mentor’s wish that their students surpass them,” Tkach said regarding former mentees’ achievements. He added that seeing former students bring new generations into academic meetings signals success: “This tells me that the goal has been achieved.”
In addition to this year’s award recognition—joining others such as past president of the American Society of Parasitologists and recipient of its Henry Baldwin Ward Medal—Tkach views accolades as part of ongoing professional exchange.
Reflecting on his time at UND since arriving from Ukraine he stated: “UND wasn’t just my first employment place in the United States,” he said. “It has treated me really well. I was able to do here far more than I could have ever expected.
“So whatever I can do next is a bonus. I already exceeded my own expectations,” he said with a laugh.
