Not sure if people are aware of this, but if Bernie were to suspend his campaign, the campaign entity is not automatically dissolved. He still retains all delegates previously accumulated, and those delegates remain bound to him. And he stays on all upcoming ballots.
So, suspending his campaign (which is effectively defunct anyway) would not preclude him from being a viable alternative in a theoretical scenario where Joe gets coronavirus. Soliciting campaign donations from desperate voters is no longer justifiable (he's got plenty of $$$)
And for people saying "He's giving all donations right now to coronavirus relief!" that's not true according to the ActBlue donate page on the campaign website, which is the same as it's always been 
And for people claiming that I'm only declaring the primary over because Tulsi dropped out, you are once again wrong. I declared it over when Bernie lost the Washington State primary to Joe Biden
