I've read through all the materials and PRs made by the company and have not found any such claim anywhere.
Further, if that claim had been made by the company their stock would have surely been suspended by now, like so many others slinging fraudulent BS about this virus. Both FINRA & the SEC are quickly investigating and acting on such behavior
You hate the stock? fine
Think theyre FOS? great
However, backup any such accusations such as claims of killing MRSA in patients