Transmission of $HIV$ occurs by:
$I.$ Sexual contact with an infected person
$II.$ Transfusion of contaminated blood
$III.$ Sharing infected needles
$IV.$ From an infected mother to her baby through the placenta
Which of the statements given above are correct?

  • A
    $I$ and $II$
  • B
    $I$ and $III$
  • C
    $II, III$ and $IV$
  • D
    $I, II, III$ and $IV$

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The following are some well-known abbreviations,which have been used in this chapter. Expand each one to its full form:
$(a)$ $MALT$
$(b)$ $CMI$
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