Increasing transmission of dengue virus across ecologically diverse regions of Ecuador and associated risk factors
PLoS neglected tropical diseases,
Journal Year:
2024,
Volume and Issue:
18(1), P. e0011408 - e0011408
Published: Jan. 31, 2024
The
distribution
and
intensity
of
viral
diseases
transmitted
by
Aedes
aegypti
mosquitoes,
including
dengue,
have
rapidly
increased
over
the
last
century.
Here,
we
study
dengue
virus
(DENV)
transmission
across
ecologically
demographically
distinct
regions
or
Ecuador.
We
analyzed
province-level
age-stratified
incidence
data
from
2000–2019
using
catalytic
models
to
estimate
force
infection
DENV
eight
decades.
found
that
provinces
established
endemic
at
different
time
periods.
Coastal
with
largest
most
connected
cities
had
earliest
highest
increase
in
transmission,
starting
around
1980
continuing
present.
In
contrast,
remote
rural
areas
reduced
access,
like
northern
coast
Amazon
regions,
experienced
a
rise
endemicity
only
10
20
years.
newly
introduced
chikungunya
Zika
viruses
age-specific
distributions
hospital-seeking
cases
consistent
recent
emergence
all
provinces.
To
evaluate
factors
associated
geographic
differences
potential,
modeled
vector
risk
11,693
presence
points
resolution
1
hectare.
total,
56%
population
Ecuador,
identified
as
having
increasing
our
models,
live
high
,
size,
trash
collection,
elevation,
access
water
important
determinants.
Our
investigation
serves
case
changes
driving
expansion
other
arboviruses
globally
suggest
control
efforts
should
be
expanded
semi-urban
historically
isolated
counteract
outbreaks.
Language: Английский
Potential climate change effects on the distribution of urban and sylvatic dengue and yellow fever vectors
Pathogens and Global Health,
Journal Year:
2024,
Volume and Issue:
118(5), P. 397 - 407
Published: July 3, 2024
Climate
change
may
increase
the
risk
of
dengue
and
yellow
fever
transmission
by
urban
sylvatic
mosquito
vectors.
Previous
research
primarily
focused
on
Aedes
aegypti
albopictus.
However,
have
a
complex
cycle
involving
Our
aim
was
to
analyze
how
distribution
areas
favorable
both
vectors
could
be
modified
as
consequence
climate
change.
We
projected,
future
scenarios,
baseline
models
already
published
for
these
based
favorability
function,
mapped
where
mosquitoes'
increase,
decrease
or
remain
stable
in
near
(2041–2060)
distant
(2061–2080)
future.
Favorable
presence
show
little
differences
compared
models,
with
changes
being
perceptible
only
at
regional
scales.
The
model
projections
predict
expanding
West
Central
Africa
South-East
Asia,
reaching
Borneo.
Yellow
spread
Amazon.
In
some
locations
Europe,
suggest
reestablishment
Ae.
aegypti,
while
albopictus
will
continue
find
new
areas.
results
underline
need
focus
more
vittatus,
luteocephalus
africanus
sub-Saharan
Africa,
especially
Cameroon,
Republic,
northern
Democratic
Republic
Congo;
underscore
importance
enhancing
entomological
monitoring
populations
often
overlooked
thrive
result
changes.
Language: Английский
Emergence and expansion of dengue in Paltas: possible implications of the COVID-19 pandemic and climatic variations
Tropical Medicine and Health,
Journal Year:
2025,
Volume and Issue:
53(1)
Published: Jan. 29, 2025
Language: Английский
Population Genetic Diversity of Two Blue Oat Mite Species on Triticum Hosts in China
Insects,
Journal Year:
2023,
Volume and Issue:
14(4), P. 377 - 377
Published: April 12, 2023
Blue
oat
mite
species,
including
Penthaleus
major
and
P.
tectus,
are
pests
widely
distributed
across
China
that
cause
damage
to
winter
wheat.
This
study
evaluated
the
genetic
diversity
of
tectus
on
Triticum
hosts
collected
from
23
geographic
locations
based
mitochondrial
cytochrome
c
oxidase
subunit
I
(COI)
sequences.
We
identified
nine
haplotypes
in
438
individuals
21
five
139
11
locations.
Meanwhile,
exhibits
high
values
haplotype
(Hd)
nucleotide
(Pi)
(Hd
=
0.534
>
0.5
Pi
0.012
0.005),
representing
a
large
stable
population
with
long
evolutionary
history.
shows
low
Hd
0.112
<
0
which
suggest
recent
founder
events.
Moreover,
demographic
analysis
suggested
have
not
undergone
expansion.
The
lowest
variation
was
observed
Xiangzhou
(XZ-HB),
Zaoyang
(ZY-HB),
Siyang
(SY-JS),
Rongxian
(RX-SC),
only
one
species
over
30
individuals.
Robust
differentiation
found
compared
provides
theoretical
basis
for
widespread
distribution
China.
Language: Английский
Genetic Diversity of Dengue Vector Aedes albopictus Collected from South Korea, Japan, and Laos
Insects,
Journal Year:
2023,
Volume and Issue:
14(3), P. 297 - 297
Published: March 20, 2023
Aedes
albopictus
is
native
to
Southeast
Asia
and
has
emerged
as
a
major
vector
for
vector-borne
diseases
that
are
spreading
rapidly
worldwide.
Recent
studies
have
shown
Ae.
populations
different
genetic
groups
dependent
on
their
thermal
adaptations;
however,
Korean
limited.
In
this
study,
we
analyzed
the
diversity
structure
of
two
mitochondrial
genes
(COI
ND5)
sixteen
microsatellites
in
mosquitoes
inhabiting
Korea,
Japan,
Laos.
The
results
indicate
population
low
diversity,
with
an
independent
cluster
distinct
from
Laos
population.
Mixed
clusters
also
been
observed
On
basis
these
findings,
hypotheses
proposed.
First,
certain
native.
Second,
some
subpopulations
descended
metapopulation
(East
Asian
countries)
were
introduced
Japan
before
migrating
Korea.
Furthermore,
previously
demonstrated
appears
imported
conclusion,
dengue-virus-carrying
could
migrate
Korea
epidemic
regions,
where
they
can
survive
during
severe
winter
months.
key
findings
be
used
establish
integrated
pest
management
strategy
based
genetics
Language: Английский
Aedes albopictus Skuse, 1884 (Diptera: Culicidae) and associated culicidae in anthropised areas of Belém-PA (Brazil), a municipality in eastern Amazonia
Karen Monteiro Moy,
No information about this author
Ingrid Nazaré Garcia Rosário,
No information about this author
Cinthia HOLANDA DE SOUZA
No information about this author
et al.
Anales de Biología,
Journal Year:
2024,
Volume and Issue:
46, P. 7 - 17
Published: March 25, 2024
El
primer
registro
de
Aedes
albopictus
en
el
Estado
Pará,
la
Amazonía
brasileña,
se
realizó
2003.
Este
estudio
tuvo
como
objetivo
describir
fauna
culícidos
y
abundancia
Ae.
cuatro
áreas
con
diferentes
grados
antropización
ciudad
Belém-PA.
Para
ello,
colectaron
larvas
criaderos
naturales,
comprobando
que
correspondió
al
63,4%
los
mosquitos
colectados,
siendo
predominante
las
más
antropizadas.
También
conseguimos
dos
haplotipos
derivados
secuencias
parciales
del
gen
COI
16
área
mayor
grado
antropización,
cuales
agrupan
ejemplares
países
tropicales
clima
templado,
respectivamente.
Nuestros
resultados
demuestran
adaptación
a
urbanas
región
amazónica.
The
first
record
of
in
the
State
Brazilian
Amazon,
was
carried
out
present
study
aimed
to
describe
Culicidae
and
abundance
four
areas
with
different
degrees
anthropization,
city
For
this,
larvae
were
collected
natural
breeding
sites,
proving
that
corresponded
63.4%
mosquitoes
collected,
being
predominant
species
highest
degree
anthropization.
We
also
identified
two
haplotypes
derived
from
partial
sequences
gene
area
greatest
anthropology,
which
are
grouped
specimens
tropical
temperate
countries,
respectively.
Our
results
demonstrate
adaptation
urban
Amazon
region.
Increasing transmission of dengue virus across ecologically diverse regions of Ecuador and associated risk factors
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 30, 2023
The
distribution
and
intensity
of
viral
diseases
transmitted
by
Language: Английский
Potential climate change effects on the distribution of urban and sylvatic dengue and yellow fever vectors
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 6, 2023
Abstract
Climate
change
may
increase
the
risk
of
dengue
and
yellow
fever
transmission
by
urban
sylvatic
mosquito
vectors.
Previous
research
primarily
focused
on
Aedes
aegypti
albopictus
.
However,
these
diseases
involve
a
complex
cycle
in
which
vectors
are
also
involved.
Our
aim
was
to
analyse
species
could
contribute
increased
due
climate
change,
identify
where
most
likely
occur.
Using
biogeographical
approach,
we
mapped
areas
favourability
increase,
decrease
or
remain
stable
near
(2041-2060)
distant
(2061-2080)
future.
Models
predict
expanding
West
Central
Africa
South-East
Asia,
reaching
Borneo.
Yellow
spread
Amazon.
In
Europe,
models
suggest
re-establishment
Ae.
,
while
will
continue
find
new
favourable
areas.
The
results
underline
need
focus
more
vittatus
luteocephalus
africanus
sub-Saharan
Africa,
especially
Cameroon,
Republic,
northern
Democratic
Republic
Congo;
for
protocol
prevent
that
include
surveillance
neglected
Language: Английский