HIV has become a global health emergency at present and has affected all regions of the world irrespective of gender, age, region, culture and nationality causing millions of deaths and sufferings. Access to prevention, modes of treatment at different stages available these days has changed the scenario globally.
The immune system of our body protect us by recognizing the invading pathogens (bacteria, fungi, viruses, parasites) and gives the instant reaction to those pathogens and thus prevent us from falling ill. The cells of immune system that play part in regulation and destruction of antigens ate T lymphocytes. When HIV is in the circulatory system, it targets CD4+ lymphocytes.
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