Dengue Virus PCR – Qualitative ek molecular diagnostic test hai jo patient ke blood sample mein dengue virus ke RNA ko detect karta hai. Is test mein Reverse Transcription Polymerase Chain Reaction (RT-PCR) technique ka upyog kiya jata hai. Yeh test dengue infection ke shuruaati charan (aam taur par bukhar ke pehle 1–7 din) mein virus ki upasthiti ki pushti karne mein madad karta hai. Test ka result qualitative hota hai, yani yeh sirf batata hai ki dengue virus RNA "Detected (Positive)" ya "Not Detected (Negative)" hai; virus ki matra (viral load) nahi batata.