Epizootic outbreak of influenza A / H5N1 among wild and farm birds in the vicinity of Komsomolsk‐on‐Amur in the autumn of 2022
South of Russia ecology development,
Год журнала:
2025,
Номер
19(4), С. 41 - 56
Опубликована: Янв. 22, 2025
Aim
of
the
work
was
to
investigate
an
epizootic
outbreak
in
vicinity
Komsomolsk‐on‐Amur
(Khabarovsk
Territory)
October
2022
among
wild
and
agricultural
birds.Material
methods
included
analysis
data,
pathologic
anatomical
examination
carcasses
dead
birds,
collection
field
material
its
transportation
laboratory
without
breaking
cold
chain,
indication
influenza
A
virus
RNA
using
real‐time
PCR,
isolation
viral
strains
on
a
model
developing
chicken
embryos
with
subsequent
assessment
activity
hemagglutination
reaction
infectious
titer
swine
embryo
kidney
cell
line,
sequencing
complete
genome
isolated
nanopore
Sanger
technologies
followed
by
bioinformatics
procedures.Results
obtained
show
that
epizootics
birds
began
February
mass
death
chickens
at
Komsomolskaya
poultry
farm
accompanied
vicinity.
Using
molecular
genetic
diagnostic
it
found
etiological
agent
H5
subtype.
Seven
were
isolated,
which
allowed
them
be
classified
as
highly
pathogenic
variants
subgroup
2.3.4.4b
H5N1
subtype.Conclusions:
East
Asia
including
Russian
Far
retains
status
center
diversity
H5Nx
virus,
where
circulates
local
bird
populations
there
is
high
probability
reassortations
between
different
virus.
Such
situation
requires
constant
vigilance
part
supervisory
authorities,
strict
compliance
requirements
biological
safety
institutions
organizations
engaged
agriculture
environmental
management
well
regular
ecological
virological
monitoring
region.
Язык: Английский
Highly pathogenic avian influenza virus (H5N5) detected in an Atlantic walrus ( Odobenus rosmarus rosmarus ) in the Svalbard Archipelago, Norway, 2023
Emerging Microbes & Infections,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 27, 2025
We
present
the
first
documented
case
of
highly
pathogenic
avian
influenza
virus
(HPAIV)
subtype
H5N5
in
an
Atlantic
walrus
(Odobenus
rosmarus
rosmarus).
The
animal
was
found
dead
Svalbard,
Norway,
2023.
Sequence
analysis
revealed
highest
genetic
similarity
with
isolates
from
different
hosts.
Язык: Английский
Systematic Review on CyanoHABs in Central Asia and Post-Soviet Countries (2010–2024)
Toxins,
Год журнала:
2025,
Номер
17(5), С. 255 - 255
Опубликована: Май 20, 2025
Cyanobacterial
harmful
blooms
(CyanoHABs)
in
lakes,
estuaries,
and
freshwater
reser-voirs
represent
a
significant
risk
to
water
authorities
worldwide
due
their
cyanotoxins
economic
impacts.
The
duration,
spread,
severity
of
CyanoHABs
have
markedly
increased
over
the
past
decades.
article
addresses
CyanoHABs,
cyanotoxins,
monitoring
methodologies
post-Soviet
Central
Asian
countries.
This
particular
region
was
selected
for
systematic
review
its
relative
lack
representation
global
reporting,
particularly
Asia.
main
aim
this
analyze
primary
literature
available
from
2010–2024
examine
current
situation
CyanoHAB
detection,
monitoring,
management
Asia
Following
detailed
database
search
several
data-bases
(Google
Scholar,
Pubmed,
Web
Science
(WOS),
Scopus,
Elibrary,
ENU,
KazNU)
along
with
additional
hand
searching
citation
searching,
121
articles
reporting
214
local
cyanobacterial
bloom
cases
were
review.
Aquatic
reported
bodies
eight
countries,
including
high
concentrations
microcystins
that
often
exceeded
reference
values
established
by
World
Health
Organization
(WHO).
Advancing
efforts
Baltic
Belarus,
Russian
Federation
differed
only
few
reports.
However,
aquatic
ecosystems
are
especially
threatened
rising
anthropogenic
pressures
(i.e.,
use,
intensive
agriculture,
pollution),
climate
change,
adequate
ecological
surveillance.
We
hypothesize
recent
Caspian
seal
mass
mortality
events
been
caused
combination
infection
(viral
or
bacterial)
exposure
algal
neurotoxins
resulting
Pseudo-nitzschia.
conclude
there
is
an
urgent
need
improve
assessment
Язык: Английский
Viral metagenomic survey of Caspian seals
Frontiers in Veterinary Science,
Год журнала:
2024,
Номер
11
Опубликована: Сен. 18, 2024
Introduction
Viral
diseases
of
pinnipeds
cause
substantial
mortality
and
morbidity
can
influence
population
demography.
metagenomic
studies
therefore
play
an
important
role
in
pinniped
health
assessments
disease
surveillance
relevant
to
both
individual
species
a
“One
Health”
context.
Methods
This
study
used
approach
with
high
throughput
sequencing
make
the
first
assessment
viral
diversity
Caspian
seals
(
Pusa
caspica
),
only
marine
mammal
endemic
Sea.
Results
Sequencing
libraries
from
35
sampled
2009–2020
were
analysed,
finding
sequences
families
Circoviridae,
Parvoviridae,
Herpesviridae,
Papillomaviridae,
Picornaviridae,
Caliciviridae,
Cruciviridae,
Anelloviridae,
Smacoviridae,
Orthomyxoviridae,
additional
detection
Adenoviridae
via
PCR.
The
similarity
contigs
seal
recovered
other
ranged
63.74%
(San
Miguel
sea
lion
calicivirus)
78.79%
(Seal
anellovirus
4).
Discussion
Some
findings
represent
novel
species,
but
overall,
repertoire
is
similar
available
viromes
pinnipeds.
Among
partial
for
influenza
B,
representing
second
such
molecular
identification
mammals.
work
provides
foundation
further
communities
seals,
more
generally,
contributes
data
risk
Язык: Английский
Vaccination of endangered wildlife as a conservation tool: Hindsights and new horizons in the pandemic era
Biological Conservation,
Год журнала:
2024,
Номер
300, С. 110842 - 110842
Опубликована: Ноя. 12, 2024
Язык: Английский
VIRAL METAGENOMIC SURVEY OF CASPIAN SEALS
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 14, 2024
Abstract
Viral
diseases
of
pinnipeds
cause
substantial
mortality
and
morbidity
can
influence
population
demography.
metagenomic
studies
therefore
play
an
important
role
in
pinniped
health
assessments
disease
surveillance
relevant
to
both
individual
species
a
‘One
Health’
context.
This
study
used
approach
with
high
throughput
sequencing
make
the
first
assessment
viral
diversity
Caspian
seals
(
Pusa
caspica
),
only
marine
mammal
endemic
Sea.
Sequencing
libraries
from
35
sampled
2009-2020
were
analysed,
finding
sequences
families
Picornaviridae,
Adenoviridae,
Circoviridae,
Herpesviridae,
Papillomaviridae,
Caliciviridae,
Orthomyxoviridae,
Anelloviridae,
Smacoviridae,
Cruciviridae
Parvoviridae
.
The
similarity
contigs
seal
those
recovered
other
ranged
63.74%
(San
Miguel
sea
lion
calicivirus)
78.79%
(Seal
anellovirus
4).
Some
may
represent
novel
species,
but
overall,
repertoire
is
similar
available
viromes
pinnipeds.
Among
partial
for
influenza
B,
representing
second
such
molecular
identification
mammals.
work
provides
foundation
further
communities
seals,
more
generally,
contributes
data
risk
Язык: Английский