When you apply for a health certificate, you will generally check five items of hepatitis B, such as renal function, liver function, chest X-ray, blood routine, stool routine, urine routine, hepatitis B antibody, syphilis antibody and condyloma acuminatum. So you don't have AIDS-related testing items, so you can't judge whether you are infected with AIDS after you apply for a health certificate. The health certificate is aimed at the service personnel in the catering industry and the staff in pharmacies. The usual check is whether there is tuberculosis or hepatitis, especially chronic hepatitis B, chronic hepatitis C, hepatitis A and hepatitis E. In addition, check whether there are intestinal infectious diseases, such as typhoid fever, cholera and paratyphoid fever, which greatly endanger people's health and pose a great threat to people around them. If you suspect that you have AIDS, you need to do an HIV antibody test. If you have AIDS, the HIV antibody test will be positive. If you have AIDS, you should pay attention to it, treat it as soon as possible and stick to it. If you suspect that you have AIDS, you can go to the CDC for AIDS antibody testing and free examination. Human immunodeficiency virus (HIV) is the pathogen of acquired immunodeficiency syndrome (AIDS) and belongs to the lentivirus family. 1983, French virologists LucMontagenier and FrancoiseBarre-Sinoussi isolated this virus, and finally named it Human Immunodeficiency Virus (HIV). Human immunodeficiency virus (HIV) particles are spherical, with a diameter of 100- 120nm, and the surface is wrapped by glycoprotein spinous process. There are two types of HIV, namely HIV- 1 and HIV-2. Among them, HIV- 1 causes global epidemic, and HIV-2 is mainly prevalent in West Africa. HIV genomic RNA is about 9.2kb long, including 3 structural genes and 6 regulatory genes? HIV only infects cells with CD4 molecules on the surface, and its resistance to physical and chemical factors is weak. Commonly used disinfectants, such as 0.5% sodium hypochlorite and 10% bleaching powder, can completely inactivate HIV by disinfecting 10 minutes at room temperature.