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Touch a chicken to spread that chicken grease on your hands. How long does it take your soap to remove that grease? That is how long one must wash hands with that brand soap.
Many soaps are poor. Feel diluted. A test says which soaps will better remove that infectious protein. Many soaps from dispensers really do not clean very well.
Nobody is killing a virus. A virus really does not live. That protein must be damaged or it must be removed. Removing (with better and more abrasive soaps) does more.
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