Can somebody help me,
When I test samples (alantoic fluid) on Avian Influenza, using QIAamp Viral RNA Kit for extraction and Taqman Influenza A/H5 detection kit version 1.0 for QPCR detection, I have no problem.
I am having problems with RNA extraction or Q-RT-PCR when I test samples that are inactivated with formaldehyde. The results are always negative, and when I test the same sample without inactivation with formaldehyde, results are positive. Where is the problem, in extraction or in Q-RT-PCR reaction?