Compared to SARS-CoV, which has a high mutation rate, the mutation rate of SARS-CoV-2 is apparently lower, suggesting a higher rate of adaptation to humans.
Ingawa virusi vya SARS-CoV na SARS-CoV-2 hufanana kwa karibu kutokana na mfululizo wa juu unaofanana wa nukleotidi wa 82%, huunganika na kuwa matawi tofauti katika mchoro wa kifilogenetiki.