Human Immunodeficiency Virus or HIV is a species of Lentivirus (genus of retrovirus) that attacks the body’s immune system and obstructs the body’s ability to fight outer infections. The virus can be transmitted when contacted with infected blood, semen or vaginal fluids. HIV attacks the immune cells of the body making an individual more vulnerable to other infectious diseases. HIV constitutes RNA rather than the usual DNA which is in the retroviral form. It is further classified into 2 main categories namely HIV-1 and HIV-2.
HIV-1 is the most prevalent HIV infection worldwide, whereas HIV-2 is not so common and is found mostly in Western Africa. There is a d...
