The more bacteria one starts with, the longer it will take to kill them all.
Hand washing with plain soap is very effective in controlling spread of microorganisms because
it is very effective at the mechanical removal of
Jasmine's boyfriend Paul has a large boil on his back. The boil is very painful to touch, and is
surrounded by an area of redness that is warm to the touch. Jasmine tells you that she and Paul
have decided that Jasmine will "pop" the boil later that evening when they are both home from
school. You ask Jasmine what she plans to use to open the boil and she tells you she has a knife
with a sharp point that she will use, and that she will wash it well with dishwashing detergent
before she uses it.
At the end of your conversation with Jasmine, you tell her that the best course of action for her
and Paul is to go to the clinic and have the boil treated there. A boil is a serious infection and the
risks of trying to treat it at home are just too great.
Heat treatment is an effective method for sterilization or disinfection of all materials.