The devil is in the details.

Another factor of nCoV-2: this virus is wolves in sheep's clothing. The part that is sticking out, that you would normally recognize and latch onto (Spike-protein) surrounds itself with glycans, sugar polymers that normally glom around in the bloodstream. If your immune system tries to attack the sheep, it goes nuts and you die of a cytokine storm.

Don't pin your hopes on the myriad of COVID-19 vaccines. We have been working on vaccines for coronaviruses UNSUCCESSFULLY for over 20 years. The leading vaccines in development are all a new type of vaccine that has never been tried before.

The process of developing vaccines has been short cut from 4 years to one, the indicators that they are working are extrapolations from in vitro antibody tests, it looks like they will be released in mass distribution with inadequate safety testing, and all vaccines have been INDEMNIFIED against side effects, so there is no downside to the manufacturers for the short cuts.

In addition, studies in Spain and US military have shown that post-infection antibodies are fading after a few months; and this virus is mutating at a higher than normal rate.