Part 1 of Essay
For an epidemic that would explode to claim hundreds of thousands of lives, surfaced very quietly in the United States, with a small notice on June 4, 1981 in a weekly newsletter published by the Centers for Disease Control in Atlanta, alerting doctors to five unusual cases of pneumonia that had been diagnosed in Los Ange ....

Part 2 of Essay
.... all were homosexual men. Men and women who used intravenous drugs were also getting sick, as were men with hemophilia, the male and female sexual partners of people in these risk groups, immigrants from Africa and the Caribbean, and some of the infant children born to women at risk. All these varied people had one thing in common: almost absent levels of the white blood cells called T helper cells that keep the immune system functioning properly. Their defective immune systems left them vulnerable to one serious ....