Introduction: Omicron has posed a serious public health concern due to the mutations/deletions associated with increased binding affinity to ACE2 (S:Q498R and S:N501Y), increased transmissibility (
S:
H655Y,
S:
N679K, and
S:
P681H), increased viral load (
N:
R203K and
N:
G204R), innate immune evasion (
ORF1a:L3674-,
ORF1a:S3675-, and
ORF1a:G3676), and
S-gene target failure (
S:H69-).