To tackle two questions at once:
It is typical for a public company to announce update calls several days in advance in order to maximize participation, particularly by analysts, institutional investors and reporters.
Given how contagious this virus is, it may be with us for quite awhile. Vicromax is not a vaccine per se - it is primarily a treatment - though Jerry thinks it may also be taken prophylactically, particularly by healthcare workers and first responders and others at risk. It blocks the pathways the virus needs to reproduce, rendering it much less potent, and thus should be useful to treat mutant strains that may develop. Zeldis expressed the belief that COVID-19 would be around for 1-3 years, and that this drug might be useful in treating future coronaviruses as well.