SARS-CoV-2,
the
causative
agent
of
coronavirus
disease
2019
(COVID-19),
is
an
RNA
virus
with
a
large
genome
that
encodes
multiple
accessory
proteins.
While
these
proteins
are
not
required
for
growth
in
vitro
,
they
can
contribute
to
pathogenicity
virus.
Cell,
Journal Year:
2020,
Volume and Issue:
182(4), P. 812 - 827.e19
Published: July 3, 2020
A
SARS-CoV-2
variant
carrying
the
Spike
protein
amino
acid
change
D614G
has
become
most
prevalent
form
in
global
pandemic.
Dynamic
tracking
of
frequencies
revealed
a
recurrent
pattern
G614
increase
at
multiple
geographic
levels:
national,
regional,
and
municipal.
The
shift
occurred
even
local
epidemics
where
original
D614
was
well
established
prior
to
introduction
variant.
consistency
this
highly
statistically
significant,
suggesting
that
may
have
fitness
advantage.
We
found
grows
higher
titer
as
pseudotyped
virions.
In
infected
individuals,
is
associated
with
lower
RT-PCR
cycle
thresholds,
suggestive
upper
respiratory
tract
viral
loads,
but
not
increased
disease
severity.
These
findings
illuminate
changes
important
for
mechanistic
understanding
virus
support
continuing
surveillance
mutations
aid
development
immunological
interventions.
Cell Reports Medicine,
Journal Year:
2020,
Volume and Issue:
1(6), P. 100098 - 100098
Published: Aug. 31, 2020
SARS-CoV-2
has
recently
been
detected
in
feces,
which
indicates
that
wastewater
may
be
used
to
monitor
viral
prevalence
the
community.
Here,
we
use
RT-qPCR
for
RNA
over
a
74-day
time
course.
We
show
changes
concentrations
follow
symptom
onset
gathered
by
retrospective
interview
of
patients
but
precedes
clinical
test
results.
In
addition,
determine
nearly
complete
(98.5%)
genome
sequence
from
and
phylogenetic
analysis
infer
ancestry.
Collectively,
this
work
demonstrates
how
can
as
proxy
community
sequencing
genotyping
strains
circulating
Science,
Journal Year:
2020,
Volume and Issue:
369(6501), P. 297 - 301
Published: May 29, 2020
Blighted
Gotham
Deaths
caused
by
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
in
New
York
City
(NYC)
during
the
spring
of
2020
have
vastly
exceeded
those
reported
China
and
many
other
countries.
What
were
early
events
that
led
to
such
a
outbreak?
Gonzalez-Reiche
et
al.
sampled
some
patients
seeking
assistance
February
March
at
Mount
Sinai
Health
System.
Phylogenetic
analysis
virus
sequences
these
people,
who
drawn
from
across
NYC,
showed
had
been
independently
introduced
times
Europe
elsewhere
United
States.
Subsequent
clusters
community
transmission
occurred.
The
focus
infection
NYC
is
marker
role
this
city
plays
as
two-way
hub
for
human
movement.
Science
issue
p.
297
MMWR Morbidity and Mortality Weekly Report,
Journal Year:
2020,
Volume and Issue:
69(12), P. 347 - 352
Published: March 23, 2020
An
estimated
30
million
passengers
are
transported
on
272
cruise
ships
worldwide
each
year*
(1).
Cruise
bring
diverse
populations
into
proximity
for
many
days,
facilitating
transmission
of
respiratory
illness
(2).
SARS-CoV-2,
the
virus
that
causes
coronavirus
disease
(COVID-19)
was
first
identified
in
Wuhan,
China,
December
2019
and
has
since
spread
to
at
least
187
countries
territories.
Widespread
COVID-19
been
reported
as
well
(3).
Passengers
certain
ship
voyages
might
be
aged
≥65
years,
which
places
them
greater
risk
severe
consequences
SARS-CoV-2
infection
(4).
During
February-March
2020,
outbreaks
associated
with
three
have
caused
more
than
800
laboratory-confirmed
cases
among
crew,
including
10
deaths.
Transmission
occurred
across
multiple
several
ships.
This
report
describes
public
health
responses
these
poses
a
rapid
disease,
causing
vulnerable
population,
aggressive
efforts
required
contain
spread.
All
persons
should
defer
all
travel
during
pandemic.
Science,
Journal Year:
2020,
Volume and Issue:
370(6516), P. 564 - 570
Published: Sept. 10, 2020
Accurate
understanding
of
the
global
spread
emerging
viruses
is
critical
for
public
health
responses
and
anticipating
preventing
future
outbreaks.
Here
we
elucidate
when,
where,
how
earliest
sustained
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
transmission
networks
became
established
in
Europe
North
America.
Our
results
suggest
that
rapid
early
interventions
successfully
prevented
introductions
virus
from
taking
hold
Germany
United
States.
Other,
later
China
to
both
Italy
Washington
state,
States,
founded
European
America
networks.
analyses
demonstrate
effectiveness
measures
onward
show
intensive
testing
contact
tracing
could
have
SARS-CoV-2
outbreaks
becoming
these
regions.
Nature Medicine,
Journal Year:
2021,
Volume and Issue:
27(3), P. 440 - 446
Published: Feb. 2, 2021
The
first
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
infection
in
South
Africa
was
identified
on
5
March
2020,
and
by
26
the
country
full
lockdown
(Oxford
stringency
index
of
90)1.
Despite
early
response,
November
over
785,000
people
were
infected,
which
accounted
for
approximately
50%
all
known
African
infections2.
In
this
study,
we
analyzed
1,365
near
whole
genomes
report
identification
16
new
lineages
SARS-CoV-2
isolated
between
6
August
2020.
Most
these
have
unique
mutations
that
not
been
elsewhere.
We
also
show
three
(B.1.1.54,
B.1.1.56
C.1)
spread
widely
during
wave,
comprising
~42%
infections
at
time.
newly
C
lineage
SARS-CoV-2,
C.1,
has
nucleotide
as
compared
with
original
Wuhan
sequence,
including
one
amino
acid
change
spike
protein,
D614G
(ref.
3),
most
geographically
widespread
end
An
African-specific
lineage,
B.1.106,
April
2020
4),
became
extinct
after
nosocomial
outbreaks
controlled
KwaZulu-Natal
Province.
Our
findings
genomic
surveillance
can
be
implemented
a
large
scale
to
identify
inform
measures
control
SARS-CoV-2.
Such
presented
study
shown
crucial
501Y.V2
variant
December
5).