Don’t bet on a coronavirus vaccine saving the economy

While there is a lot of talk about a vaccine saving us, much of that talk isn’t supported by scientific evidence.  Some key points:

• Most vaccine candidates are not designed to prevent the spread of coronavirus.  The virus would still spread even if it causes less serious disease.
• There are mixed indications about whether or not a highly-effective vaccine for the coronavirus will emerge.
• There are now highly credible reports of re-infection cases.  It is unlikely that herd immunity is possible.  As far as a vaccine goes, it is likely that a vaccine would need to be frequently re-applied so that immunity does not fade.