et swab used on the skin? allows more bacteria to be picked up ??? ??? ??? what four organisms are commonly isolated from the skin? staph epe, corynebacteria, staph aureus, strep viridians, yeast, baccillus species, microcuccus species ??? ??? ??? what is the importance of catalase to certain bacteria catalase protects against toxic oxidizing agents such as hydrogen peroxide, super oxidate which d