Seroprevalence of Chikungunya and O'nyong‐nyong Viruses in Senegal, West Africa
Journal of Medical Virology,
Journal Year:
2025,
Volume and Issue:
97(3)
Published: March 1, 2025
ABSTRACT
Arthritogenic
alphaviruses
such
as
chikungunya
(CHIKV)
and
o'nyong‐nyong
(ONNV)
viruses
have
shown
capacity
to
cause
widespread
epidemics,
with
recurrent
sporadic
outbreaks
occurring
throughout
sub‐Saharan
Africa.
We
analyzed
the
seroprevalence
for
CHIKV
ONNV
in
470
non‐febrile
subjects
from
three
regions
Senegal
(Sindia,
2018;
Thies,
Kedougou,
2022/2023)
using
retrospective
samples.
assessed
presence
of
anti‐CHIKV
IgG
neutralizing
antibody
titers
against
via
enzyme‐linked
immunosorbent
assay
(ELISA)
microneutralization
tests,
respectively,
determined
risk
factors
exposure
by
binary
logistic
regression.
The
overall
alphavirus
based
on
an
virus
like
particle
(VLP)
ELISA
was
38.5%,
rates
varying
geographically:
Kedougou
(48.6%),
Thies
(31.9%),
Sindia
(14.9%).
Neutralizing
revealed
7.4%
9.8%,
significant
variations
region
age
group.
Cross‐reactivity
analysis
showed
that
82.9%
cases
exhibited
a
response
ONNV,
while
71.7%
cross‐neutralized
CHIKV.
Residents
had
significantly
higher
odds
infection
(aOR,
3.147;
95%
CI:
1.164–8.510)
more
likely
3.888;
1.319–11.466).
Furthermore,
older
(>
40
years)
factor
both
2.094;
0.846–5.185)
2.745;
1.212–6.216).
Our
study
confirms
co‐circulation
Senegal,
highlighting
their
geographic
demographic
distribution.
These
findings
underscore
need
continued
surveillance,
testing,
tailored
public
health
strategies
mitigate
impact
Senegal.
Language: Английский
Wolbachia: A Bacterial Weapon Against Dengue Fever- A Narrative Review of Risk Factors for Dengue Fever Outbreaks
Sepehr Safaei,
No information about this author
Mozhgan Derakhshan-sefidi,
No information about this author
Ali Karimi
No information about this author
et al.
New Microbes and New Infections,
Journal Year:
2025,
Volume and Issue:
unknown, P. 101578 - 101578
Published: March 1, 2025
Arboviruses
constitute
the
largest
known
group
of
viruses
and
are
responsible
for
various
infections
that
impose
significant
socioeconomic
burdens
worldwide,
particularly
due
to
their
link
with
insect-borne
diseases.
The
increasing
incidence
dengue
fever
in
non-endemic
regions
underscores
urgent
need
innovative
strategies
combat
this
public
health
threat.
Wolbachia,
a
bacterium,
presents
promising
biological
control
method
against
mosquito
vectors,
offering
novel
approach
managing
fever.
We
systematically
investigated
biomedical
databases
(PubMed,
Web
Science,
Google
Scholar,
Science
Direct,
Embase)
using
"AND"
as
Boolean
operator
keywords
such
"dengue
fever,"
virus,"
"risk
factors,"
"Wolbachia,"
"outbreak."
prioritized
articles
offered
insights
into
risk
factors
contributing
outbreak
provided
an
overview
Wolbachia's
characteristics
functions
disease
management,
considering
studies
published
until
December
25,
2024.
Field
experiments
have
shown
introducing
Wolbachia-infected
mosquitoes
can
effectively
reduce
populations
lower
transmission
rates,
signifying
its
potential
practical
controlling
disease.
Language: Английский
Patterns of Insect Distribution in Fruit Trees of South Romania and Their Role as Bacterial Vectors
Dana S. Copoiu,
No information about this author
Paris Lavín,
No information about this author
Corina Iţcuş
No information about this author
et al.
Diversity,
Journal Year:
2025,
Volume and Issue:
17(4), P. 295 - 295
Published: April 20, 2025
This
study
is
the
first
investigation
of
tree–insect–bacteria
interactions
in
southern
Romania,
documenting
distribution
19
insect
species
across
various
fruit
trees
and
their
insect-associated
bacterial
diversity.
Insect
were
identified
through
DNA
barcoding,
while
communities
Anthomyia,
Botanophila,
Drosophila,
Scaptomyza
insects
analyzed
via
16S
rRNA
gene
sequencing.
diversity
varied
apple,
cherry,
plum,
peach,
quince
trees,
with
most
showing
tree-specific
distribution,
except
for
Drosophila
melanogaster,
which
was
found
on
all
tree
species.
Its
presence
primarily
influenced
by
development
stages
rather
than
temperature
changes.
comprised
51
genera
four
phyla,
predominantly
Pseudomonadota
Bacillota,
that
species,
suggesting
potential
role
these
flies
as
vectors.
Several
pathogenic
biomarkers
within
microbiomes,
involvement
disease
transmission,
particularly
affecting
apple
cherry
trees.
also
provides
report
seven
being
microbiome
characterization
dipteran
associated
regional
Language: Английский
Yellow Fever in Non-Human Primates: A Veterinary Guide from a One Health Perspective
Veterinary Sciences,
Journal Year:
2025,
Volume and Issue:
12(4), P. 339 - 339
Published: April 6, 2025
Yellow
fever
(YF)
causes
severe
morbidity
and
mortality
in
Africa
South
America.
It
is
an
arthropod-borne
viral
disease
endemic
to
tropical
regions
of
virus
(YFV)
transmitted
by
mosquitoes
frequently
affects
both
non-human
primates
(NHPs)
humans.
Neotropical
(NTPs)
are
generally
more
severely
afflicted
YFV
than
African
primates.
Asian
appear
not
be
susceptible
this
disease.
Susceptibility
varies
among
NTP
species:
asymptomatic
infections
described
some
species,
whereas
epizootic
events
others.
The
genus
Alouatta
(howler
monkeys)
considered
the
most
NTPs.
Epizootic
resulting
death
thousands
NTPs
have
been
recorded
recent
history.
As
a
result,
poses
threat
survival
species.
In
cases,
found
dead
without
showing
prior
clinical
signs.
cases
where
signs
observed,
they
mostly
non-specific.
Due
their
high
susceptibility,
used
as
epidemiological
predictors
for
human
YF
outbreaks.
infection
may
diagnosed
means
isolation,
reverse
transcription
polymerase
chain
reaction,
serology,
histopathology,
or
immunohistochemistry.
Animals
that
survive
develop
neutralizing
antibodies
YFV.
Currently,
no
specific
treatment
available.
Sustained
control
strategies
must
rely
on
surveillance
accurate
diagnostics
allow
early
detection
outbreaks
rapid
implementation
measures.
Prophylaxis
should
based
One
Health
perspective
recognizes
intricate
interplay
between
health,
primate
environment.
Vaccines
available,
with
17DD
vaccine
effectively
preventing
However,
mitigation
continue
vector
control,
preferably
using
eco-friendly
methods.
Climate
change
activities,
impact
local
ecology,
assumed
increase
risk
transmission
next
decades.
Language: Английский