Don't Hold Your Breath (Assuming You Can Still Breathe On Your Own)

Little to no hope.

Peter Fimrite / San Francisco Chronicle:
With coronavirus antibodies fading fast, vaccine hopes fade, too  —  Disturbing new revelations that permanent immunity to the coronavirus may not be possible have jeopardized vaccine development and reinforced a decision by scientists at UCSF and affiliated laboratories to focus exclusively on treatments.

Full Disclosure: This reporter was born at UCSF, or whatever it was in the previous century (UC Medical Center).