MEP Book 1 ANSWERS Page 2 1 1111 Draw lines to match up each pair of animals.Colour the animals from each pair in the same colour.Draw a dot in a box for every pair of animals.
HIV (Human Immunodeficiency Virus) Infection - Topic Overview. HIV (human immunodeficiency virus) is a virus that attacks the immune system, the body's natural defense system. Without a strong immune system, the body has trouble fighting off disease. Both the virus and the infection it causes are called HIV. White blood cells are an important part of the immune system.
Introduction. HIV disease is a continuum of progressive damage to the immune system from the time of infection to the manifestation of severe immunologic damage by opportunistic infections (OI), neoplasms, wasting, or low CD4 lymphocyte count that define AIDS.