Alcohol percentages
- To fend off bacteria, a 70 percent alcohol solution with water in it allows it to cross a cell membrane and kills the entire cell.
- Viruses with an envelope structure, including the new virus, can be deactivated by alcohol solutions of 60 percent.
- Any concentration of alcohol won't effectively target the norovirus.
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Rubbing alcohol
Depending on what kind of germs you’re trying to kill, 70 percent alcohol is probably more effective than 91 percent for disinfecting.
A 90 percent alcohol solution is too powerful in some cases. It kills the outside of the cell before it can get into the inside and kill the actual germ.
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