The role of an active immune system is:

  • A
    It causes fever
  • B
    It leads to swelling and pain
  • C
    It recruits many cells to the affected tissue to kill off the disease-causing microbes
  • D
    It interferes with the functioning of body systems

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Making anti-viral drugs is more difficult than making anti-bacterial medicines because

$(a)$ Which part of the body is infected by the malaria-causing microbe?
$(b)$ What are the two ways to treat an infectious disease?

If you live in an overcrowded and poorly ventilated house,it is possible that you may suffer from which of the following diseases?

Why do some children fall ill more frequently than others living in the same locality?

Give the cause and remedy for:
$(a)$ Hepatitis
$(b)$ $AIDS$
$(c)$ Malaria

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