Viruses can be active outside the body for hours or even days.
Disinfectants, liquids, wipes, gels, and creams that contain alcohol are all helpful in getting rid of it, but they are not as effective as regular soap.
So why does soap work so well on Sars-CoV-2, the coronavirus and, in fact, on most viruses? In short: because the virus is a self-assembled nanoparticle whose weakest link is the fatty lipid bilayer.
It is well known that soap dissolves fat and the fatty membrane of the virus collapses like a house of cards and dies - or rather, one should say it becomes inactive because viruses are not really alive.
Reminder of good gestures to wash your hands effectively
For this to be effective, you must follow a few rules issued by the World Health Organization:
- wet your hands completely,
- soap your hands for at least thirty seconds,
- remember to rub the palms of the hands up to the wrist, between the fingers and the nails,
- rinse,
- dry your hands with a clean towel or disposable,
- close the tap with a towel.
Ideally, hands should be washed after frequenting a collective place, after coming into contact with a sick person or a potentially contaminated surface, before and after eating.
The hydroalcoholic solutions can be used to troubleshoot in transport or when soap is not available. They contain alcohol and have a similar effect to soap, but are not as effective. They disinfect but do not clean the hands. In addition, some have antibacterial agents that have no effect on viruses.
Note that even outside the epidemic period, almost a third of people do not wash their hands after going to the bathroom ...
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