most importantly tachycardia [33] (represented in Table 1 ).
Table 1 Differentiating SARS-CoV, MERS-CoV, and SARS-CoV-2 based on the impact of manifestations posed by them at various organ levels.
Target SARS-CoV MERS-CoV SARS-CoV-2
ACE2 receptor DPP4 receptor ACE2 receptor
1. Heart Hypotension, transient cardiomegaly, tachycardia, transient paroxysmal atrial fibrillation, myocardial infarction, acute coronary syndrome Ele