Holista CollTech joins forces with GICC to develop works first nasal sanitiser, page-1755

Yes I get all those info and know that Dr Moore being in HCT team. What I am saying is that the new test may still be done with feline ( surrogate) COVID in a lab setting, but it is done with a different method in US. Please read the following. Direct inoculation does not mean getting a person immersing into the Natshied solution if that's what you are thinking.

Sterility Test Methods

Two distinct methods are used for sterility testing. First is membrane filtration, which is defined in USP <71> as the preferred method, provided the drug product being tested is filterable. This method involves passing a quantity of drug product through two canisters, each housing a filter designed to retain microorganisms. This is followed by a rinse to ensure no drug product remains on the filter, as that can potentially inhibit the growth of microorganisms. The final step is to fill each canister with one of the two media types described below. The second sterility testing method is direct inoculation. This consists of introducing the drug product directly into each of the two growth media using a defined quantity of drug product sample to growth media. The dilution used must be sufficient to overcome any antimicrobial properties present in the drug product being tested.