Vaccines,
Journal Year:
2022,
Volume and Issue:
10(6), P. 919 - 919
Published: June 9, 2022
Severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
is
a
virus
that
belongs
to
the
family
and
cause
of
disease
2019
(COVID-19).
As
May
2022,
it
had
caused
more
than
500
million
infections
6
deaths
worldwide.
Several
vaccines
have
been
produced
tested
over
last
two
years.
The
SARS-CoV-2
virus,
on
other
hand,
has
mutated
time,
resulting
in
genetic
variation
population
circulating
variants
during
COVID-19
pandemic.
It
also
shown
immune-evading
characteristics,
suggesting
vaccinations
against
these
could
be
potentially
ineffective.
purpose
this
review
article
investigate
key
concern
(VOCs)
mutations
driving
current
pandemic,
as
well
explore
transmission
rates
VOCs
relation
epidemiological
factors
compare
virus's
rate
prior
coronaviruses.
We
examined
provided
information
study,
including
their
transmissibility,
infectivity
rate,
severity,
affinity
for
angiotensin-converting
enzyme
(ACE2)
receptors,
viral
load,
reproduction
number,
vaccination
effectiveness,
vaccine
breakthrough.
Encyclopedia,
Journal Year:
2021,
Volume and Issue:
1(2), P. 433 - 444
Published: May 31, 2021
Coronavirus
disease
2019
(COVID-19)
is
caused
by
the
novel
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2),
which
appeared
in
late
2019,
generating
a
pandemic
crisis
with
high
numbers
of
COVID-19-related
infected
individuals
and
deaths
manifold
countries
worldwide.
Lessons
learned
from
COVID-19
can
be
used
to
prevent
threats
designing
strategies
support
different
policy
responses,
not
limited
health
system,
directed
reduce
risks
emergence
viral
agents,
diffusion
infectious
diseases
negative
impact
society.
