what about PCR qualitative...???
Not sure exactly what you are asking. however the quant. is used when treating and if your PCR report said <12IU/ML Det . then the test has reconnized virus, however because the sensitivity of the test is only 12 then it can not quantify it below that.
Thie important aspect is that ..at whatever week this was done you were still virus Detected..
Hopfully the next PCR (quantitative) will be UND.
Good luck..
Will