Information about Covid 19.1 .we Know Prevention is better than Cure

The important of hand washing . 5 different washing duration and their efficiency. Glowing region show Dirt and microorganisms . 1) before washing 2) rinse and shake 3) six second wash No soap 4) six second wash With soap 5) fifteen second wash with soap 6) thirty second wash With soap.

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Nice information

Thank you sir
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Very valuable information