Figures:
Figure 1: Person to person transmission of SARS-CoV-2 mainly
depends upon air droplets and direct contact with infected person. After
the transmission the viral particles undergo six step viral replication
in human body such as 1) Viral entry through plasma membrane or
endosomes 2) translation of viral replicating machinery 3) replication
of viral particles 4) structural proteins translation 5) assembly of
virion and 6) release of the viruses. Furthermore, the figure also
explains the immune responses and conditions which develop after the
infection. There are three types of infections; asymptomatic, mild and
severe.