Fig. 4From: Efficient SARS-CoV-2 detection in unextracted oro-nasopharyngeal specimens by rRT-PCR with the Seegene Allplex™ 2019-nCoV assayEffect of storage temperature on viral RNAs stability. E, RdRP and N genes from 4 non-extracted RNA samples in UTM (diluted 1/5), 4 non-extracted RNA samples in RNase-free water (dilution 1/2) and 4 RNA-extracted samples kept either at + 4 °C or − 70 °C were analyzed by rRT-PCR at day 1, day 2, day 3 and day 4. Red numbers indicate percentage of detection at day 4Back to article page