commensal

In the context of most public restrooms, transferring commensal bacteria doesn't seem that big a deal.

Many of our commensal bacteria are gram negatives.

Have you ruled out zombie salmon... or salmon with commensal micro-biological activity such as a rust?

But the gut eventually gets recolonised by commensal bacteria - either from food or from the appendix[0].

It's not necessarily pathogens only but it can also be commensal dysbiosis.

As shown in my references above, Ro60, a potentially causal autoantigen for Lupus and Sjogren's has been linked to commensal bacteria.

To my mind at least there's a significant difference between commensal bacteria and sucking down one of the bacterial 'spurts' from a rotting pigeon or rodent in the drinking water.

The very best thing for your guts is an extremely diverse set of commensal bacteria that have adapted to cooperate with the human body, preferably inherited from your family down many generations.

For all of you Flipper fanatics, I found a gem of a funding source "To develop probiotic pharmaceuticals to treat and prevent gastrointestinal disease in dolphins and improve their health through the utilization of indigenous commensal microbes of these marine mammals.

Some context>While TiO2 had minimal impact on the composition of the microbiota in the small intestine and colon, we found that TiO2 treatment could alter the release of bacterial metabolites in vivo and affect the spatial distribution of commensal bacteria in vitro by promoting biofilm formation