This doesn't seem like a treatment for covid yet, and no actual medicine is involved even though interferon is mentioned.
More like modern recognition of a natural interactive effect between micro-organisms which might have even predated humanity itself.
>“There are hidden interactions between viruses that we don’t quite understand, and these findings are a piece of the puzzle we are just now looking at,” Foxman said.
This could be a very promising area of study and a major step toward understanding not just covid.
Maybe even things like phage therapy where certain viruses attack and kill bacteria.
Plus when you think about it Staph is a deadly bacteria which can sometimes get out-of-control, but there are variants of it too and supposedly a major percentage of the population carries it at all times without apparent ill effect.
What if that Staph is one that fights back against a virus and gives some protection against covid itself? May be far-fetched but one thing's for sure, the collection of the additional data would be nearly frictionless. Especially compared to lots of other data struggles.
You have to figure that micro-organisms have been fighting against each other for a while now, and could very well have had millions of years to refine their tactics before mammals even came along.
If for no other reason than sheer boredom.
Plus things that have survived have been at somewhat of a stalemate for at least a few millennia, penicillin was a natural bacteriotoxin that had been produced by a type of mold the whole time, just waiting to be discovered.