CHMP5 and susceptibility to pneumonia measurement: Woo PCY mainly engaged in research on the nucleocapsid protein and spike polypeptide of SARS-CoV,[29–31] also discovered and isolated a novel coronavirus, coronavirus HKU1, from patients with pneumonia.[32] Cluster #0 MERS-CoV contained the largest author group, who illustrated the transmission and epidemic of MERS-CoV in the middle east,[33] and clinical observation of MERS.[34]