Answer :

i) Our hands are contaminated with disease-causing bacteria and viruses, these pathogens can enter the body or pass from one person to another to cause disease. Hand washing with soap prevents many common and dangerous infections such as diarrhea and pneumonia.

ii) Many illnesses start when hands become contaminated with disease-causing bacteria and viruses. This can happen after using the toilet, contact with a child’s excreta, coughing, sneezing, touching other people’s hands, and touching other contaminated surfaces. Whenever your hand is contaminated with touching contaminated surface, hands should be washed properly.

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