hello guys
i live in germany. i took a 4th gen. Antibody and p24 antigen test at 27 days(26days 10 hours) for free in germany. i dont know if it is duo or combo. i asked the man who works there and he didn't know as well. But there were 2 negative on the papier so it's possible to be DUO. and also he said that this test should be taken at 6 weeks
1. Are there any kind of 4th gen. test except duo or combo ?
2. Does it change after 27 days and have you ever seen or heard after 27 change ?
3. i have read sth on internet that 4th gen test is okay at 4 weeks why did he say 6 weeks ?