Coincidentally the solutions proved to be far more effective germicides and antiseptics than soap ( Semmelweis only knew that soap was less effective, but not why ), and the success of these chlorinated agents resulted in Semmelweis's ( later ) celebrated success in stopping the transmission of childbed fever.
32.
Antiseptics, antibiotics, disinfectants, germicides, bacteriocides, bacteriostatics, antibacterials, microbicides AND viricides-all apply stress to their intended targets and if they are anything less than 100 % effective at preventing their chosen victims from ultimately reproducing-they WILL cause evolutionary pressure . ( It's tough to be 100 % effective because at the boundaries of the area the substance was applied over, there is guaranteed to be some place where it's present in non-lethal doses-and right there, a creature can survive and evolve tolerance)
33.
A less specific measurement of effectiveness is the United States Environmental Protection Agency ( EPA ) classification into either " high ", " intermediate " or " low " levels of disinfection . " High-level disinfection kills all organisms, except high levels of bacterial spores " and is done with a chemical germicide marketed as a sterilant by the U . S . Food and Drug Administration ( FDA ) . " Intermediate-level disinfection kills mycobacteria, most viruses, and bacteria with a chemical germicide registered as a'tuberculocide'by the Environmental Protection Agency.
34.
A less specific measurement of effectiveness is the United States Environmental Protection Agency ( EPA ) classification into either " high ", " intermediate " or " low " levels of disinfection . " High-level disinfection kills all organisms, except high levels of bacterial spores " and is done with a chemical germicide marketed as a sterilant by the U . S . Food and Drug Administration ( FDA ) . " Intermediate-level disinfection kills mycobacteria, most viruses, and bacteria with a chemical germicide registered as a'tuberculocide'by the Environmental Protection Agency.
