AIDS does not belong to class A infectious diseases, belongs to class B infectious diseases, the full name of this disease is called acquired immunodeficiency syndrome, the pathogen is the human immunodeficiency virus, when the human body is infected with this virus, it will lead to the body cellular immune function of the partial or complete loss, and then the occurrence of conditional pathogenic infections, including bacteria, viruses, fungi, microbes, parasites and so on, in addition, it will also lead to the occurrence of malignant tumors. In addition, it can lead to the occurrence of malignant tumors, so the danger of AIDS is quite great. Since the discovery of AIDS, a worldwide epidemic has been formed, due to the rapid spread of the disease, high mortality rate, and there is no cure for this disease, so it should be paid great attention to.