Emergence and spread of the SARS-CoV-2 omicron (BA.1) variant across Africa: an observational study
The Lancet Global Health,
Journal Year:
2025,
Volume and Issue:
13(2), P. e256 - e267
Published: Jan. 29, 2025
Language: Английский
Epidemiology of HIV, Hepatitis B Virus, and Hepatitis C Virus in Incoming Venezuelan Migrants: A Laboratory-Based Cross-Sectional Study, 2021-2023
Published: Jan. 1, 2025
Language: Английский
“Strengthening Diagnostic Services in Latin America Requires Regional Leadership, Sustainable Funding, and Enhanced Data Sharing”
Health Policy,
Journal Year:
2025,
Volume and Issue:
unknown, P. 105287 - 105287
Published: March 1, 2025
Diagnostic
services
played
a
key
role
in
government
responses
to
the
COVID-19
pandemic.
In
our
work
support
diagnostics
over
20
countries
of
Global
South,
with
focus
on
Latin
America,
we
observed
common
problems
resource-limited
settings.
We
identify
constraints
(i)
affordability
reagents,
(ii)
access
(iii)
poor
infrastructure,
and
(iv)
limited
human
resources.
Enhancing
diagnostic
settings
cannot
be
sustained
only
by
international
cooperation
philanthropic
missions.
Success
depends
domestic
leadership
regional
which
existent
influenza
or
dengue
networks
America
are
prime
examples.
A
American
Center
for
Disease
Control
Prevention
(CDC),
as
proposed
some,
can
successful
if
reliable
funding
clear
mandate
secured.
stronger
inclusion
tool
development
data
sharing
will
imperative
dealing
emerging
pathogens.
Language: Английский
Venezuelan Equine Encephalitis, Peruvian Amazon, 2020
Emerging infectious diseases,
Journal Year:
2025,
Volume and Issue:
31(5)
Published: April 24, 2025
We
screened
1,972
febrile
patients
from
the
Peruvian
Amazon
in
2020-2021
for
Venezuelan
equine
encephalitis
virus
(VEEV).
Neutralizing
antibody
detection
rate
was
3.9%;
2
were
PCR
positive.
Genome
identity
compared
to
Peru
VEEV
subtype
ID
strains
97.6%-98.1%.
Evidence
purifying
selection
and
ancestry
≈54
years
ago
corroborated
endemicity.
Language: Английский
Post-migration infection with SARS-CoV-2 in Venezuelan migrants: a laboratory-based epidemiological observational study
Travel Medicine and Infectious Disease,
Journal Year:
2024,
Volume and Issue:
unknown, P. 102772 - 102772
Published: Oct. 1, 2024
Language: Английский
Serologic evidence for early SARS-CoV-2 circulation in Lima, Peru, 2020
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Feb. 14, 2024
Abstract
During
early
2021,
Peru
had
the
highest
COVID-19-associated
per-capita
mortality
rate
globally.
Socioeconomic
inequality
and
insufficiently
prepared
healthcare
surveillance
systems
likely
contributed
to
high
mortality,
potentially
coupled
with
SARS-CoV-2
introduction.
We
tested
1,441
individuals
fever
sampled
during
August
2019-May
2021
in
Lima,
Peru,
for
SARS-CoV-2-specific
antibodies.
Serologic
testing
included
a
chemiluminescence
immunoassay
confirmatory
surrogate
virus
neutralization
testing.
Early
positive
samples
(n=24)
from
January-March
2020
were
further
using
plaque-reduction
avidity
tests
based
on
spike
nucleoprotein
antigens.
None
of
PRNT-confirmed,
contrast
81.8%
(18/22)
subsample
April
onwards
(Fischer-exact
test,
p<0.0001).
antibody
detection
was
0.9%
mid-April
(1/104;
95%
confidence
interval
(CI),
0.1-5.8%),
suggesting
onset
viral
circulation
early-mid
March
2020,
consistent
first
molecular
6th.
Mean
increase
62-77%
81-94%
all
PRNT-confirmed
late
February/March
2020.
confirmed
Susceptible,
Exposed,
Infected
Recovered
mathematical
model
that
projected
an
effective
reproduction
number
>1,
February-March
Robust
serologic
thus
introduction
COVID-19
Peru.
Emphasizing
role
diagnostic
confirmation,
our
study
highlights
importance
accurate
managing
infectious
disease
outbreaks.
Importance
Latin
America
hard
hit
by
pandemic.
Reasons
include
inadequate
preparation
socio-economic
vulnerabilities,
exacerbated
undetected
circulation.
Diagnostic
requires
exhaustive
validation
due
unspecific
reactivity.
used
cohort
circa
1400
febrile
patients
2019
until
May
months
earlier
than
seroprevalence
two-step
algorithm.
antibodies
onwards,
SARS-CoV-2-detection.
significant
modeled
peak
>1
Using
validation,
we
detected
severe
impact
Language: Английский
Bronchoscopy and molecular diagnostic techniques to identify superimposed infections in COVID-19-associated ARDS: a case series from Ecuador during the second wave
Killen H. Briones‐Claudett,
No information about this author
Mónica H. Briones-Claudett,
No information about this author
Roger Murillo Vasconez
No information about this author
et al.
Frontiers in Medicine,
Journal Year:
2024,
Volume and Issue:
11
Published: Oct. 30, 2024
COVID-19-associated
acute
respiratory
distress
syndrome
(CARDS)
poses
significant
challenges
in
resource-limited
settings.
This
case
series
explores
the
role
of
bronchoscopy
and
molecular
techniques
identifying
superimposed
infections
CARDS
patients
during
second
wave
pandemic
Ecuador.
Language: Английский