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.
The HIV virus attacks T-helper cells, or CD4+ cells, by fitting itself into the cell like a key in a lock. Once it has invaded, it can use its own RNA as a template to make copies of itself, multiplying and traveling through the body.