Answers are grounded in this paper and cite their sources.
Although it is known that RT-PCR can give false positive results, especially if performed using serum or plasma, this real-time RT-PCR detecting FCoV RNA in CSF can be considered a reliable specific tool for the diagnosis of FIP. If only cats with neurological involvement are evaluated, the sensitivity of this real-time RT-PCR in CSF is also high.
No takes yet. Share an insight, caveat, or question.
Doenges et al. (2015) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: