Figure 1: Logarithmic representation of the determined rate constants log k(T) for the human coronaviruses SARS-CoV, SARS-CoV-2, MERS-CoV and HCoV, together with linear regressions for SARS-CoV-2 and SARS-CoV & SARS-Co-V-2 together. A “worst-case model” was generated by shifting the SARS-CoV & SARS-CoV-2 regression curve, so that all determined rate constants for human coronaviruses are just above this line.