At present, reports about HIV infection through blood in Henan Province are widely circulated. This is mainly because some illegal blood collection points, in order to reap huge profits, use backward technical means to illegally collect blood and plasma, and reuse blood collection equipment and medical equipment, resulting in some blood donors infected with HIV. After investigation, the plasma collected locally was extracted from blood donors and stored in plastic bags. As the blood collected in each bag is as much as 800 ml, the result is that many people's blood is mixed in one blood bag, separated into plasma and blood cells in a large centrifuge, and then the separated plasma is collected, and the rest of the blood cells are mixed with normal saline and sent to blood donors. Because of this process, many people * * use blood needles and blood catheters, and * * * use instruments that are not strictly disinfected. If one of them is infected with HIV or other viruses, it will infect other blood donors.