Chris Bauch – The Conversation

A nurse at the Royal Free Hospital in London simulates the administration of the Pfizer vaccine on Dec. 4, 2020 to support staff training ahead of the rollout in the United Kingdom. (Yui Mok/Pool Photo via AP)

December 9, 2020

Which age group — old or young — should get the COVID‑19 vaccine first may depend on timing

Chris Bauch, University of Waterloo; Madhur Anand, University of Guelph, and Peter C. Jentsch, University of Waterloo

If supplies of COVID-19 vaccine are initially limited, who should be vaccinated first? A mathematical model shows when and why it’s best to start with the young, and when older people should go first.

Mathematical models can help figure out class sizes and configurations to minimize disruptions and school closures. (Shutterstock)

September 30, 2020

Large class sizes during the coronavirus pandemic are a triple whammy

Chris Bauch, University of Waterloo; Brendon Phillips, University of Waterloo; Dillon Thomas Browne, University of Waterloo, and Madhur Anand, University of Guelph

Schools reopening during the current coronavirus pandemic need to calculate class sizes to prevent the spread of disease and minimize disruptions.

Ontario Premier Doug Ford, left, and Education Minister Stephen Lecce, right, on July 30, 2020, before announcing the government’s plan for reopening schools in the fall due to the COVID-19 pandemic. THE CANADIAN PRESS/Nathan Denette

September 21, 2020

Are local shutdowns effective, or should COVID‑19 lockdowns be in lockstep provincewide?

Vadim Karatayev, University of Guelph; Chris Bauch, University of Waterloo, and Madhur Anand, University of Guelph

With sufficient testing and co-ordination, reopening schools and businesses in areas without active outbreaks can be as effective as a wide lockdown in minimizing COVID-19 cases, according to a new model.

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