Personally I would have step up the vaxx as a binary weapons...

It means that the vaxx would be "safe", but once I release the second designer RNA package (virus), it would enter in "resonnance" with the immune response I would have set up with the "vaxx" and so chain reaction > death !

I find this a very soft kind and gentle way to eliminate a large useless chunk of the bipedes. most are useless eaters, breeders, all clones and neuroprogrammed by us. they have no differences, one is the same as the others.

as such the elephants, tigers, leopards, chehtaas and many others would be able to survive a little while...

but who knows... I don't know how to read RNA insertion point in a RNA sequence and or positioning of the RNA "fibers"...