Is the second Covid wave coming? Autumn, the second wave and immunity: questions about Covid-19 that have no simple answers

We are experiencing a unique moment in our recent history, in which science actually begs us to have faith in the effectiveness of a practice wearing a mask, washing hands, using physical distancing - even though it is not yet able to provide knowledge. Solid science on the pillars of this pandemic.

Epistemologically it is an interesting counterpoint, which not just broadens the contours of the concept of prevention. The idea continues to pass that since we do not yet have certain scientific knowledge, then there is no reason to wear a mask or to follow the 03 physical distance; while the rationale is exactly the opposite: precisely because we do not yet know who, how and when he will become infected and seriously ill, the smartest thing we can do is to follow strictly the preventive measures that have a foundation.

It is too early for science to have a definitive answer to several crucial questions and therefore it is too early for us to choose to act on these: how will it go in the fall? Is it a danger if children go back to school? What is the nature of the immunity provided by a future vaccine, and how long will it last? What is the real risk of becoming seriously ill with COVID-19 once infected? What is the nature of this virus?

One of the most striking aspects of COVID-19 is the stark differences in the experiences of the disease. Why do people respond so differently to infection? We have not yet understood this, also because for obvious reasons autopsies on COVID-19 patients were prohibited.