Thank you, Doctor.
Dr. Tam, PHAC's most recent epidemiology and modelling update released on April 1, a month ago, outlined both the realistic scenario for the future, defined by ongoing transmission with intermittent waves, as well as a worst-case scenario, defined by the emergence of an immune-evasive and severe virus of concern, which I think you've mentioned.
In your view, Dr. Tam, what is the likelihood of the worst-case scenario coming to fruition?