[reindeer76]

>This sounds like one of those "bible code" things. As someone who knows nothing about DNA sequences, what is the probability that two codes could be matched? (In a birthday paradox sense where you can go looking anywhere)

The genome in question is about 30000 bases long, which isn't nearly long enough for the outcome space size issue to come into play. Assuming independence, the probability is still very remote, effectively zero.

However, there is in no way any expectation of independence. SARS-CoV-2 is obviously closely related to SARS-CoV-1, which is obviously closely related to 2015/2016 ongoing vaccine research. (And perhaps gain of function research.)