Hello, the window period of AIDS is 2- 12 weeks, usually 3 months. Syphilis can be detected in blood 2-4 weeks after infection.

Guiding opinions:

Hello, June 27th is a high risk, and it is too early to test on July 8th. On August 20, HIV antibody test was negative, and infection was basically ruled out. You can do another HIV antibody test 3 months after high risk, and the result is negative, so you can completely rule out infection. You can also have a syphilis test now.