Among cosmetic surgeries, Botox is the most common plastic surgery. Botox involves injecting of a toxin called âbotulinumâ in the epidermis of the skin to get rid of the wrinkles arising out of old age.
Human immunodeficiency virus (HIV) is a virus that causes the condition acquired immunodeficiency syndrome (AIDS). The virus attacks a specific type of immune system cell in the body, known as CD4 helper lymphocyte cells. HIV destroys these cells, making it harder for your body to fight off other infections.
How AIDS develops. 1  The immune system is gradually disrupted. HIV kills cells in the lymph nodes (small glands filled with immune cells that trap foreign organisms) and in other sites. 2  Virus levels in the blood and the lymph nodes increase because the immune system cannot keep up with the amount of virus constantly produced. HIV constantly changes itself, avoiding attack by the antibodies and immune cells that normally control infections.