Q185 / 200 · NEET 2010 (Screening) · Zoology

Which one of the following statements is correct with respect to AIDS?

  • A
    The HIV can be transmitted through eating food together with an infected person
  • B
    Drug addicts are least susceptible to HIV infection
  • C
    AIDS patients are being fully cured cent per cent with proper care and nutrition
  • Correct answer
    D
    The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers

Solution

AIDS (Acquired Immuno Deficiency Syndrome) is a viral disease of immune system. It is caused by virus Human Immunodeficiency Virus (HIV). In AIDS patients, the virus homes on $\mathrm{CD}_4+$ T-cells (helper T-lymphocytes), infecting and killing them until none are left. Without their crucial immune system cells, the body cannot mount a defence against invading bacteria or viruses. AIDS patient die off infections that a healthy person could fought off.

Hence, the correct answer is option: 'D'.

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