Question

(b) State the various ways of preventing the occurrence
(a) What is a vaccine ? How does a vaccine work?
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Answer 1

• Wash your hands often.
• Get vaccinated
• Use antibiotics sensibly.
• Stay at home if you have signs and symptoms of an infection
• Be smart about food preparation

1. vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria

Answer 2

Answer:

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