European Journal of Epidemiology,
Journal Year:
2023,
Volume and Issue:
38(3), P. 243 - 266
Published: Feb. 16, 2023
Abstract
Contact
tracing
is
a
non-pharmaceutical
intervention
(NPI)
widely
used
in
the
control
of
COVID-19
pandemic.
Its
effectiveness
may
depend
on
number
factors
including
proportion
contacts
traced,
delays
tracing,
mode
contact
(e.g.
forward,
backward
or
bidirectional
training),
types
who
are
traced
index
cases
cases),
setting
where
household
workplace).
We
performed
systematic
review
evidence
regarding
comparative
interventions.
78
studies
were
included
review,
12
observational
(ten
ecological
studies,
one
retrospective
cohort
study
and
pre-post
with
two
patient
cohorts)
66
mathematical
modelling
studies.
Based
results
from
six
can
be
effective
at
controlling
COVID-19.
Two
high
quality
showed
incremental
adding
digital
to
manual
tracing.
One
intermediate
that
increases
associated
drop
mortality,
acceptable
prompt
case
clusters
/
symptomatic
individuals
led
reduction
reproduction
R.
Within
seven
exploring
context
implementation
other
interventions,
was
found
have
an
effect
epidemic
not
remaining
five
However,
limitation
many
these
lack
description
extent
we
identified
following
highly
policies:
(1)
coverage
either
medium-term
immunity,
efficacious
isolation/quarantine
and/
physical
distancing
(2)
hybrid
app
adoption
isolation/
quarantine
social
distancing,
(3)
secondary
(4)
eliminating
delays,
(5)
(6)
reopening
educational
institutions.
also
highlighted
role
enhance
some
interventions
2020
lockdown
reopening.
While
limited,
shows
for
epidemic.
More
empirical
accounting
required.
The Journal of Infectious Diseases,
Journal Year:
2022,
Volume and Issue:
226(9), P. 1593 - 1607
Published: April 14, 2022
Abstract
Background
This
study
aims
to
examine
the
worldwide
prevalence
of
post-coronavirus
disease
2019
(COVID-19)
condition,
through
a
systematic
review
and
meta-analysis.
Methods
PubMed,
Embase,
iSearch
were
searched
on
July
5,
2021
with
verification
extending
March
13,
2022.
Using
random-effects
framework
DerSimonian-Laird
estimator,
we
meta-analyzed
post-COVID-19
condition
at
28+
days
from
infection.
Results
Fifty
studies
included,
41
meta-analyzed.
Global
estimated
pooled
was
0.43
(95%
confidence
interval
[CI],
.39–.46).
Hospitalized
nonhospitalized
patients
had
estimates
0.54
CI,
.44–.63)
0.34
.25–.46),
respectively.
Regional
Asia
(0.51;
95%
.37–.65),
Europe
(0.44;
.32–.56),
United
States
America
(0.31;
.21–.43).
for
30,
60,
90,
120
after
infection
be
0.37
.26–.49),
0.25
.15–.38),
0.32
.14–.57),
0.49
.40–.59),
Fatigue
most
common
symptom
reported
0.23
.17–.30),
followed
by
memory
problems
(0.14;
.10–.19).
Conclusions
finds
is
substantial;
health
effects
COVID-19
seem
prolonged
can
exert
stress
healthcare
system.
BMJ,
Journal Year:
2022,
Volume and Issue:
unknown, P. e071050 - e071050
Published: Oct. 13, 2022
Abstract
Objectives
To
describe
symptoms
and
symptom
clusters
of
post-covid
syndrome
six
to
12
months
after
acute
infection,
risk
factors,
examine
the
association
with
general
health
working
capacity.
Design
Population
based,
cross
sectional
study
Setting
Adults
aged
18-65
years
confirmed
SARS-CoV-2
infection
between
October
2020
March
2021
notified
authorities
in
four
geographically
defined
regions
southern
Germany.
Participants
50
457
patients
were
invited
participate
study,
whom
053
(24%)
responded
11
710
(58.8%
(n=6881)
female;
mean
age
44.1
years;
3.6%
(412/11
602)
previously
admitted
covid-19;
follow-up
time
8.5
months)
could
be
included
analyses.
Main
outcome
measures
Symptom
frequencies
(six
versus
before
infection),
severity
clustering,
associations
recovery
Results
The
fatigue
(37.2%
(4213/11
312),
95%
confidence
interval
36.4%
38.1%)
neurocognitive
impairment
(31.3%
(3561/11
361),
30.5%
32.2%)
contributed
most
reduced
capacity,
but
chest
symptoms,
anxiety/depression,
headache/dizziness,
pain
syndromes
also
prevalent
relevant
for
some
differences
according
sex
age.
Considering
new
at
least
moderate
daily
life
≤80%
recovered
or
overall
estimate
was
28.5%
(3289/11
536,
27.7%
29.3%)
among
participants
6.5%
(3289/50
457)
infected
adult
population
(assuming
that
all
non-responders
had
completely
recovered).
true
value
is
likely
these
estimates.
Conclusions
Despite
limitation
a
low
response
rate
possible
selection
recall
biases,
this
suggests
considerable
burden
self-reported
post-acute
sequelae,
notably
impairment,
even
young
middle
adults
mild
substantial
impact
on
Trial
registration
German
registry
clinical
studies
DRKS
00027012.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: July 25, 2022
Accurate
surveillance
of
the
COVID-19
pandemic
can
be
weakened
by
under-reporting
cases,
particularly
due
to
asymptomatic
or
pre-symptomatic
infections,
resulting
in
bias.
Quantification
SARS-CoV-2
RNA
wastewater
used
infer
infection
prevalence,
but
uncertainty
sensitivity
and
considerable
variability
has
meant
that
accurate
measurement
remains
elusive.
Here,
we
use
data
from
45
sewage
sites
England,
covering
31%
population,
estimate
prevalence
within
1.1%
estimates
representative
surveys
(with
95%
confidence).
Using
machine
learning
phenomenological
models,
show
differences
between
sampled
sites,
flow
rate,
influence
estimation
require
careful
interpretation.
We
find
signals
appear
4-5
days
earlier
comparison
clinical
testing
are
coincident
with
suggesting
a
leading
indicator
for
symptomatic
viral
infections.
Surveillance
viruses
complements
strengthens
surveillance,
significant
implications
public
health.
Infection Genetics and Evolution,
Journal Year:
2023,
Volume and Issue:
108, P. 105405 - 105405
Published: Jan. 18, 2023
The
COVID-19
pandemic
has
brought
significant
challenges
for
genomic
surveillance
strategies
in
public
health
systems
worldwide.
During
the
past
thirty-four
months,
many
countries
faced
several
epidemic
waves
of
SARS-CoV-2
infections,
driven
mainly
by
emergence
and
spread
novel
variants.
In
that
line,
been
a
crucial
toolkit
to
study
real-time
evolution,
assessment
optimization
diagnostic
assays,
improve
efficacy
existing
vaccines.
pandemic,
identification
emerging
lineages
carrying
lineage-specific
mutations
(particularly
those
Receptor
Binding
domain)
showed
how
these
might
significantly
impact
viral
transmissibility,
protection
from
reinfection
vaccination.
So
far,
an
unprecedented
number
genomes
released
databases
(i.e.,
GISAID,
NCBI),
achieving
14
million
genome
sequences
available
as
early-November
2022.
present
review,
we
summarise
global
landscape
during
first
months
circulation
evolution.
It
demonstrates
urgency
importance
sustained
investment
timely
identify
any
potential
pathogen
or
associated
variants,
which
turn
is
key
preparedness.
Environment International,
Journal Year:
2023,
Volume and Issue:
173, P. 107743 - 107743
Published: Jan. 7, 2023
Wastewater-based
epidemiology
(WBE)
has
the
potential
to
predict
COVID-19
cases;
however,
reliable
methods
for
tracking
SARS-CoV-2
RNA
concentrations
(C
Nature reviews. Immunology,
Journal Year:
2021,
Volume and Issue:
21(12), P. 762 - 768
Published: Oct. 19, 2021
An
important
challenge
during
the
COVID-19
pandemic
has
been
to
understand
asymptomatic
disease
and
extent
which
this
may
be
a
source
of
transmission.
As
is
by
definition
hard
screen
for,
there
lack
clarity
about
aspect
spectrum.
Studies
have
considered
whether
prevalence
determined
differences
in
age,
demographics,
viral
load,
duration
shedding,
magnitude
or
durability
immunity.
It
clear
that
adaptive
immunity
strongly
activated
infection,
but
some
features
T
cell
antibody
response
differ
from
those
symptomatic
disease.
Areas
need
greater
include
leads
persistent
symptoms
(long
COVID),
quality,
quantity
immune
priming
required
confer
subsequent
protection.
Individuals
with
can
transmit
virus
at
risk
long-term
In
Progress
article,
Boyton
Altman
present
current
insights
into
responses
SARS-CoV-2
infection
discuss
relevance
for
public
health
strategies.
Environmental Science Water Research & Technology,
Journal Year:
2022,
Volume and Issue:
8(4), P. 757 - 770
Published: Jan. 1, 2022
We
compared
SARS-CoV-2
RNA
concentrations
in
primary
settled
solids
and
raw
wastewater
samples
matched
date
to
investigate
the
relationship
between
two
matrices.
Viruses,
Journal Year:
2022,
Volume and Issue:
14(7), P. 1415 - 1415
Published: June 28, 2022
Molecular
mimicry
between
viral
antigens
and
host
proteins
can
produce
cross-reacting
antibodies
leading
to
autoimmunity.
The
coronavirus
SARS-CoV-2
causes
COVID-19,
a
disease
curiously
resulting
in
varied
symptoms
outcomes,
ranging
from
asymptomatic
fatal.
Autoimmunity
due
molecular
may
provide
an
explanation.
Thus,
we
computationally
investigated
Spike
known
epitopes.
We
discovered
hotspots
highlight
two
examples
with
tentative
high
autoimmune
potential
implications
for
understanding
COVID-19
complications.
show
that
TQLPP
motif
thrombopoietin
shares
similar
antibody
binding
properties.
Antibodies
induce
thrombocytopenia,
condition
observed
patients.
Another
motif,
ELDKY,
is
shared
multiple
human
proteins,
such
as
PRKG1
involved
platelet
activation
calcium
regulation,
tropomyosin,
which
linked
cardiac
disease.
tropomyosin
cause
complications
blood-clotting
disorders
disease,
respectively.
Our
findings
illuminate
pathogenesis
the
importance
of
considering
when
developing
therapeutic
interventions
reduce
adverse
reactions.
PLoS Medicine,
Journal Year:
2022,
Volume and Issue:
19(5), P. e1003987 - e1003987
Published: May 26, 2022
Debate
about
the
level
of
asymptomatic
Severe
Acute
Respiratory
Syndrome
Coronavirus
2
(SARS-CoV-2)
infection
continues.
The
amount
evidence
is
increasing
and
study
designs
have
changed
over
time.
We
updated
a
living
systematic
review
to
address
3
questions:
(1)
Among
people
who
become
infected
with
SARS-CoV-2,
what
proportion
does
not
experience
symptoms
at
all
during
their
infection?
(2)
What
infectiousness
presymptomatic,
compared
symptomatic,
SARS-CoV-2
(3)
transmission
in
population
accounted
for
by
are
or
presymptomatic?