Part 1 of Essay
The disease called aids is becoming very widespread in the United States. The question is why. In the following paragraphs the answers to this question will be answered. Aids is the final, life-threatening stage of infection with human immuondeficiency virus (HIV). Aids stands for Acquired immunodeficiency virus syndro ....

Part 2 of Essay
.... tiredness, fever, loss of weight, diarrhea, and night sweats. AIDS is caused by two viruses that belong to a group called retroviruses. The virus became known as HIV-1. In 1985, scientists in France identified another closely related virus that produces AIDS. This such virus became known as HIV-2 and occurs mainly just in Africa. The virus,HIV-1 is spread throughout the world . HIV infects certain white blood cells, including T-helper cells and macrophages, that play key roles in the functioning ....