Crazy market behaviour

Surprisingly, stock markets around the world has rallied strongly.  But do fund managers consult scientists and medicos about the future?  The behaviour of the markets suggest these non-financial experts are totally ignored for their opinion.

Until an effective vaccine is found, the world economy cannot go up by leaps and bound.  If those fund managers haven't learnt from the Spanish Flu, then more people are going to get burnt... and more people are going to die.  Personally, the lockdown should only be relaxed when NO new cases are diagnosed for 2 weeks but I am just intuitive.