[rightwingcrazy]

How would you prove that a particular viral strain, invisible to the naked eye, exists?

By genetic sequencing?

By electron microscopy?

What exactly would be considered sufficient proof?

[Golden Eagle]

From your link:

Note that the images do not look much different from MERS-CoV (Middle East respiratory syndrome coronavirus, which emerged in 2012) or the original SARS-CoV (severe acute respiratory syndrome coronavirus, which emerged in 2002).

Hmmm…