I took a PCR and P24 antigen test 3 weeks after exposure and this was when my so called ARS symptoms were minimizing. They came back negative and my doc assures me that this is extremely accurate. Again, there is not a lot of serial sample data from people during acute infection.
Most people seek medical attention with symptoms.
That is usually 2-3 weeks after exposure. If infected, the viral load will almost always be positive at that time. This is not a precise science. We would need to infect people and then follow them with daily blood draws to get the answers you want. Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material.