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Which one of the following statements is correct with respect to $AIDS$ ?
The $HIV$ can be transmitted through eating food together with an infected person
Drug addicts are least susceptible to $HIV$ infection
$AIDS$ patients are being fully cured cent per cent with proper care and nutrition
The causative $HIV$ retrovirus enters helper Tlymphocytes thus reducing their numbers.
Solution
(d) : $AIDS$ (acquired immuno deficiency syndrome) a syndrome, is caused by the retrovirus $HIV$ (human immunodeficiency virus). The virus destroys a subgroup of lymphocytes, the helper $T$ cells (or $CD4$ lymphocytes), resulting in suppression of the body’s immune response. $HIV$ is transmitted in blood, semen and vaginal fluid; the major routes of infection are unprotected vaginal and anal inter-course, intravenous drug abuse, and the administration of contaminated blood and blood products. A combination of antiviral drugs can delay the development of fullblown $AIDS$ for many years but cannot fully care the disease.