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I had oral sex with a girl and ejaculated in her mouth back in November 2018 and I didn't know her blood status. Eight days after the encounter, I did a PCR RNA test and it was negative. Then, at one month, I took an HIV Tridot and syphilis test, both negative. At 75 days, I repeated the HIV Tridot and Syphilis VDRL tests, and they were also negative. I took the HIV Tridot and Syphilis VDRL tests again on January 30. Those came back negative too. Is the HIV Tridot test accurate after 82 days? I'm really anxious about this...