There used to be a colleague who was afraid to go to the hospital because of many symptoms, but he was infected with AIDS every day. He bought a test paper on a website called Aiyou.com and tested it himself. The test result is no infection.
However, he was still worried and had many symptoms, so he went to the hospital and told the nurses there to check for AIDS. The test results are still the same, no infection. I didn't expect the hospital to use test paper to test it.