On February 23 the Daily Mail ran an article showing that Moderna has patented the 19 base letter (nucleotide) sequence which codes for the Furin Cleavage site in Covid-19.
They cited a Paper by Scientists in India, Switzerland, Italy and the US (cautiously entitled: MSH3 Homology and Potential Recombination Link to SARS-CoV-2 Furin Cleavage Site) in which they calculated that the chances of a 19 nucleotide sequence patented by Moderna randomly appearing in Covid-19 in circumstances where it does not appear anywhere else in nature are 1 in 3 trillion.
But they failed to make the obvious deduction there from. Had they made said obvious deduction I fear that might have been the last scientific deduction they ever got published!
They decided to investigate the RNA sequence for the Furin cleavage site in the Covid-19 Spike Protein to see if it occurred anywhere else in nature. .
Fortunately the NCBI/NIH have produced the wonderful BLAST database which catalogues every gene sequence in nature known to man and every synthetic patented gene sequence known to the patent office.
The researchers chose the Furin Cleavage sequence because it is the only continuous gene letter sequence (nucleotide sequence) in Covid-19 with more than 3 nucleotides, that differs from the respective letters in its closest natural relative the Bat Coronavirus RaTG13 (all other differences are 3 letters or less long). So it was by far the best candidate for determining whether or not Covid-19 was man made.