Professor Philip Nolan:

We need to be careful about use of the term "second wave". I wish we did not use it. I would prefer we thought about the possibility, rather than probability, of a significant resurgence of the disease at some point. It is possible that we might have a significant resurgence of the disease at some point. We must prepare for that eventuality.

It may not happen and we should work to prevent it happening. We have learned a great deal during the past 100 days which would have us better prepared for any second resurgence. The strategies would, perforce, be different. They will be different in nature from the first time out and we will have more knowledge and experience which we would apply to any second significant development.