combo vs elisa

Hello Dr.

I have a question about combo test. i did it 35 and 47 days after the exposure. both results are negative. but im still not sure about them, because i read here and there that only elisa after 2 month is conclusive. i would like to get an opinion from you about that- is it true about the elisa test?  doesnt the combo includes also elisa (at least thats what i thought)? is the elisa more sensitive in detecting antibody than the combo?

thank you very much and best regards,

Foster.

[Teak]

You can obtain a conclusive negative test result three months post exposure. That is for both tests DUO or ELISA.

[foster35]

Thank you for your comment, but why not after 2 months, according to the regulations requirement?