HIV predominantly infects T-helper cells, cells that are responsible for coordinating B- and T-cell activity. Based on this information, explain why HIV-infected individuals are at a very high risk for developing microbial infections. List the causative agent (virus) and discuss its properties. Name and briefly discuss 3 diseases that AIDS patients are more likely to contract.(Terminology to use: opportunistic pathogens, T and B cell purposes, CD4 cells, retrovirus, reverse transcription)

Mrs. h, age 42 years, is experiencing severe rheumatoid arthritis in her wrists, fingers, and knees. the joints are quite inflamed, red, and swollen. she is sitting rigidly in a chair and refuses to put on a sweater, even though she is shivering, or let anyone touch her arms. she has been prescribed an analgesic and an anti-inflammatory drug, but her dose is not due for another hour. she is feeling nauseated, so she has not eaten for the past 8 hours. based on patient history and the signs and symptoms, discuss how the effects of pain are exacerbating her condition.