Unlike SARS, many patients with MERS also developed acute renal failure, which is characteristic of MERS compared to HCoV pathologies.
Kulingana na tofauti katika misururu ya protini, Virusi vya CoV vinmeainishwa katika aina nne (alpha-CoV, beta-CoV, gamma-CoV na delta-CoV), kati yavyo, aina ya beta-CoV genera huwa na virusi vya HCoV vingi zaidi na imegawanya katika vizazi vinne (A, B, C na D).