Developing cell biology lessons for seniors in the age of COVID

By Polina Petlitsyna, CBR-SBME Summer Student Alum

Originally posted on the Canadian Blood Services Research, Education, and Discovery (R.E.D.) blog and republished with permission and minor edits. See the original article here.

We are delighted to publish the entries that were awarded joint first place in this year’s Lay Science Writing Competition. Read on for Polina Petlitsyna’s engaging entry about her work as a summer student at the Centre for Blood Research and the importance of good communication to build trust in science.


Polina Petlitsyna

Polina Petlitsyna

“I don’t trust all this science stuff,” grumbled my grandmother over the phone.

I sighed. We were two months into the COVID-19 pandemic, so it was a tough phrase to hear from someone whom I cared so deeply about. At the time, my grandmother, a senior, was and still is more likely to develop complications from SARS-CoV-19. The unique circumstances of this year weakened her trust in scientists and doctors, which was troubling as these professionals continue to rely on her demographic’s support and cooperation.

It was thus clear that the key to growing the trust of seniors like my grandmother would involve science communication.

Under the supervision of Dr. Jenna Usprech (as part of the Centre for Blood Research Summer Studentship), I developed a set of specialized science lessons over the summer, tailored to the learning pace and interests of senior learners through strategic emphasis on discussion and survey feedback. All the visual artifacts produced for this project can be found on

This program, titled “Cells and Society”, allowed senior learners to explore the world of specialized science as they learned about the components of cells, how they resemble our organization as a society, and various diseases like diabetes, Alzheimer’s, and more.

While lifelong learning programming for senior (55+) learners is not a novel concept, the potential of offering specialized science programs like this one has been largely unexplored. The broader aim of this project was to improve the senior learners’ scientific trust in light of COVID-19 by providing them with an introduction to science, from cells to society.

Overall, three lesson plans were developed, three one-hour Zoom sessions were coordinated, and two Qualtrics surveys were distributed to the participants. Several seniors demonstrated interest in the program after it was promoted to several Facebook senior groups. The final five-person cohort was 80% female and 20% male, their ages ranging from 60 to 85. The first survey was distributed after the first Zoom session, the second was sent at the end of the project. The participants’ responses on the extent of their cell biology knowledge and their trust in scientists and doctors were compared using the two surveys and Zoom discussions. While this first cohort was small, the seniors’ feedback throughout the program appeared to show an improvement in their trust of scientists and doctors. This is great to hear because having seniors place greater potential trust in science means walking hand in hand with doctors and scientists to the pandemic finish line.

Shortly after Research Day presentations, I dialed up my grandmother and gave her a quick overview of my summer. I brought up Parkinson’s and telomere shortening, penicillin and insulin. “Sounds like they [scientists] are doing some good things,” she said quietly. I smiled.

It is in my best hopes that more specialized science programs like this one can be developed for senior learners in the near future.


  • Read the other joint first place entry on “Lost in lab: deciphering blood immune cells to fight COVID-19” by Melina Messing here.


About the author:

Polina Petlitsyna is a second-year biology student from University of British Columbia’s Faculty of Science. Over the summer, Polina worked under the supervision of Dr. Jenna Usprech through the prestigious 2020 CBR-SBME Studentship. Her project revolved around developing and delivering virtual cell biology lessons to a senior cohort, with the broader goal of improving their scientific trust amid COVID-19. Having assisted seniors in the past as a recreational programs volunteer, Polina wanted to reconnect with this demographic by bringing tailored science programming to their virtual doorstep, starting with the inner workings of cells and building up to their roles in human disease. 


The 2020-2021 Canadian Blood Services Lay Science Writing Competition was organized by the Canadian Blood Services’ Centre for Innovation with welcome support from the Centre for Blood Research at the University of British Columbia.