The first record sample of HIV was exposed in 1959 in a blood specimen obtain at Leopoldville in the Belgian Congo. This was the first known death chalked up by AIDS. The virus is consideration to have initially affected chimpanzees. The crossover from animals to humans may have occurred in the 1950s through an accident HIV has two major categories: HIV-1 and HIV-2. HIV-1, which currently has about 10 subtypes, is most common worldwide and the only form found in the US. HIV-2 is less virulent and though currently restricted to West Africa—it`s spreading. or a bite.
On invading the body, the virus specifically attacks T-cells. A core part of the human defence system, they mobilize other cells to seek and destroy communicable foreign elements besides leading the immune system`s fight against infection. T-cells are targeted because the AIDS virus parasitizes the CD4 molecules on their surface
Loss of appetite, weight loss, constant fever, prolonged fatigue, diarrhea, constipation, changing bowel patterns, swollen glands, chills coupled with excessive sweating, particularly at nights, lesion in the mouth, sore throat, persistent cough, shortness of breath, tumours, skin rashes, headaches, memory lapses, swelling in the joints, pain in various parts of the body, vision problems and a regular feeling of lethargy and ill health make up the litany of symptoms
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