| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T77 |
0-127 |
Sentence |
denotes |
Based on molecular characterization, SARS-CoV-2 is considered a new Betacoronavirus belonging to the subgenus Sarbecovirus (3). |
| T78 |
128-231 |
Sentence |
denotes |
A few other critical zoonotic viruses (MERS-related CoV and SARS-related CoV) belong to the same genus. |
| T79 |
232-415 |
Sentence |
denotes |
However, SARS-CoV-2 was identified as a distinct virus based on the percent identity with other Betacoronavirus; conserved open reading frame 1a/b (ORF1a/b) is below 90% identity (3). |
| T80 |
416-592 |
Sentence |
denotes |
An overall 80% nucleotide identity was observed between SARS-CoV-2 and the original SARS-CoV, along with 89% identity with ZC45 and ZXC21 SARS-related CoVs of bats (2, 31, 36). |
| T81 |
593-714 |
Sentence |
denotes |
In addition, 82% identity has been observed between SARS-CoV-2 and human SARS-CoV Tor2 and human SARS-CoV BJ01 2003 (31). |
| T82 |
715-828 |
Sentence |
denotes |
A sequence identity of only 51.8% was observed between MERS-related CoV and the recently emerged SARS-CoV-2 (37). |
| T83 |
829-939 |
Sentence |
denotes |
Phylogenetic analysis of the structural genes also revealed that SARS-CoV-2 is closer to bat SARS-related CoV. |
| T84 |
940-1087 |
Sentence |
denotes |
Therefore, SARS-CoV-2 might have originated from bats, while other amplifier hosts might have played a role in disease transmission to humans (31). |
| T85 |
1088-1200 |
Sentence |
denotes |
Of note, the other two zoonotic CoVs (MERS-related CoV and SARS-related CoV) also originated from bats (38, 39). |
| T86 |
1201-1302 |
Sentence |
denotes |
Nevertheless, for SARS and MERS, civet cat and camels, respectively, act as amplifier hosts (40, 41). |
