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Agarose gel electrophoresis of one‐step RT‐PCR on in vitro transcribed RNAs. Lanes 1 and 2: amplicons of E and RdRp gene of SARS‐CoV; lane M: DNA ladder 100 bp; lanes 3 and 4: amplicons of E and RdRp gene of SARS‐CoV‐2. RT‐PCR, reverse transcription polymerase chain reaction; SARS‐CoV, severe acute respiratory syndrome coronavirus
