There are viral infections for which vaccines were never successfully developed, despite over a decade of research and trials. There is no guarantee a vaccine will be developed for SARS-CoV-2 in anything approaching a timely manner. People need to weigh the costs and risks of a near total freeze on economic activity against those of letting the virus run its course until herd immunity develops.
There are 115 trials underway. There are 100,000 very smart investigators working day and night. There has already been tremendous progress.
My niece works at a lab developing a cheap test. Two of their researchers have already died of this virus (they went to work despite the risks). Don't make fools of them, by falling into despair and negativity.
I hope they succeed in creating a vaccine for COVID19, but resting the lifting of a highly destructive mass-lockdown of healthy people on a hope, is reckless.
Contingency plans need to be created; a definite end date for the lockdowns, irrespective of whether a vaccine exists.
