The fact is that we still have a lot to learn about this virus and the disease it causes that can be lethal in some people.
We know that there are some things that make people more likely to get seriously ill than others.
It is highly likely that viral load plays a part. If this is true, and it almost certainly is, it may be that all the hand washing, mask wearing and social distancing mean that people who test positive are less likely to be severely affected than if they lived or worked in an environment with no preventative measures in place.
We know that people with underlying health conditions and obesity are more likely to become seriously ill, however most vulnerable people have been more careful than say, younger people who have been more likely to party and expose themelves to the virus.
There are many causal factors in terms of who gets very sick and who does not that we still don't understand.
This is a new virus and the reasons why some people get very sick and other don't are, at this point, a mystery..
We face a challenging, tough winter and, while we are still in the early days of the pandemic and with no vaccine in sight it just makes sense to be as careful as possible.