A
utilização
de
antimicrobianos
na
produção
animaluso
terapêutico,
profilático
e
como
promotor
do
crescimento,
além
da
aplicação
esterco
fertilizante,
permitem
que
as
fazendas
sejam
consideradas
uma
das
fontes
ambientais
resistência
antimicrobiana.Isto
se
deve
tanto
à
pressão
seletiva
gerada
pelos
resíduos
quanto
disponibilização
no
ambiente
cepas
resistentes
genes.No
contexto
animal,
a
bovinocultura,
microbiota
intestinal
dos
animais
é
constantemente
alvo
seleção
exercida
antimicrobianos,
modo
comensais
podem
atuar
reservatórios
genes
transferi-los
às
patogênicas.Escherichia
coli
possui
representantes
patogênicos
o
estudo
mobilização
espécie
torna
possível.Adicionalmente,
bovinos
são
E.
produtoras
toxina
Shiga
(STEC)
presença
destas
ordenha
confere
riscos
saúde
população
humana
em
contato
com
os
animais.Diante
possibilidade
transferência
entre
patogênicas
dentro
hospedeiro
veiculação
ambiente,
este
buscou:
i:
demonstrar
disseminação
isoladas
domésticos
(vacas,
bezerros,
cães,
outros),
dípteros
muscoides
conviventes
duas
propriedades
leiteiras
região
Botucatu,
SP
água,
por
meio
caracterização
determinantes
genéticos;
ii:
caracterizar
fatores
virulência
associados
patogenicidade
nas
STEC;
iii:
plasmídeos
integrons
realizar
ensaios
conjugação
fim
avaliar
capacidade
bactérias
água
e,
iv:
perfil
clonal
cepas.Não
houve
associação
período
coleta
frequência
aos
testados.Foi
encontrada
alta
polimixina
(41,7%)
gene
mcr-1.1
mobilizado
pelo
plasmídeo
IncX4
IS26.As
STEC
apresentaram
baixa
multirresistência
diversidade
perfis
genômicos
pela
técnica
Pulsed-Field
Gel
Electrophoresis.Os
presentes
moscas
bezerros
Propriedade
não
foram
dfrA7
cassete
gênico
blaCTX-M-2
ao
mesmo
transposon
(integron
complexo).As
B
aadA1
integron
presente
um
fago-plasmídeo
p0111.A
análise
filogenética
demonstrou
cepas-clones
positivas
para
e/ou
multirresistente
mosca
bezerro
(ST224)
cão
(ST58).Os
resultados
sugerem
superfície
externa
circulação
diferentes
oriundas
fazenda.Os
isolados
constituir
ferramenta
importante
monitoramento
controle
disseminação,
dada
semelhança
provenientes
fazenda.
Journal of Applied Microbiology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
Abstract
Antimicrobial
resistance
(AMR),
arising
from
decades
of
imprudent
anthropogenic
use
antimicrobials
in
healthcare
and
agriculture,
is
considered
one
the
greatest
One
Health
crises
facing
globally.
pollutants
released
human-associated
sources
are
intensifying
evolution
environment.
Due
to
various
ecological
factors,
wildlife
interact
with
these
polluted
ecosystems,
acquiring
resistant
bacteria
genes.
Although
recognised
reservoirs
disseminators
AMR
environment,
current
surveillance
systems
still
primarily
focus
on
clinical
agricultural
settings,
neglecting
this
environmental
dimension.
Wildlife
can
serve
as
valuable
sentinels
reflecting
ecosystem
health,
effectiveness
mitigation
strategies.
This
review
explores
knowledge
gaps
surrounding
factors
influencing
acquisition
dissemination
wildlife,
highlights
limitations
policy
instruments
that
do
not
sufficiently
address
component
AMR.
We
discuss
underutilised
opportunity
using
sentinel
species
a
holistic,
Health-centred
system.
By
better
integrating
into
systematic
policy,
leveraging
advances
high-throughput
technologies,
we
track
predict
evolution,
assess
impacts,
understand
complex
dynamics
transmission
across
ecosystems.
Frontiers in Veterinary Science,
Journal Year:
2025,
Volume and Issue:
12
Published: March 12, 2025
Introduction
The
increasing
prevalence
of
antimicrobial
resistance
in
livestock,
particularly
the
dissemination
extended-spectrum
beta-lactamase-producing
Escherichia
coli
,
poses
a
significant
zoonotic
and
public
health
risk.
This
study
investigates
genomic
characteristics
cefotaxime-resistant
E.
isolates
from
dairy
calves
across
23
Czech
farms
their
caretakers.
Materials
methods
Bacteriological
cultivation
on
McConkey
agar
with
cefotaxime
was
used
for
isolation,
susceptibility
to
selected
antibiotics
determined
by
disc
diffusion
method,
production
beta-lactamases
(ESBL)
demonstrated
double
synergy
test.
PCR
applied
confirm
presence
genes
encoding
some
beta-lactams
quinolones
carried
plasmids.
Using
whole-genome
sequencing,
we
evaluated
genotypes,
sequence
types,
serotypes,
plasmid
replicons,
virulence
genes.
Results
discussion
Among
266
rectal
samples
obtained
calves,
128
(48%)
harbored
.
Whole-genome
analysis
revealed
bla
CTX-M
91%
(116/128)
isolates,
-14
(44%)
-1
(34%)
being
dominant
variants.
Other
beta-lactamase
gene
TEM-1b
found
40%
(51/128)
isolates.
Notably,
no
cephamycin
have
been
identified.
plasmid-mediated
quinolone
(PMQR)
qnrS1
present
at
21%
(27/128)
colistin
mcr-1
single
ST2325
isolate.
Sequence
typing
clonal
diversity,
21
different
STs
detected
among
68
sequenced
ST10
most
prevalent
(27%),
followed
ST69
(12%),
ST29
(7%)
others.
phylogenetic
distribution
showed
predominance
commensal
groups
A
(54%)
B1
(21%).
common
serotypes
included
O101:H9
(21%),
O15:H18
H12,
O70:H11
(7%).
Analysis
content
complex
18
distinct
replicon
especially
IncF,
Col-type
IncI1-type
Cross-species
transmission
indicated
detection
strains
shared
between
caretakers,
notably
ST10-O101:H9
ST34-O68:H30.
high-risk
clones
mobile
elements
underscore
urgent
need
stringent
monitoring,
stewardship,
improved
biosecurity
measures
livestock
environments
like
increased
caution
personal
hygiene
animal
handlers
mitigate
spread
resistant
animals
humans.
Antibiotics,
Journal Year:
2024,
Volume and Issue:
13(4), P. 376 - 376
Published: April 20, 2024
Escherichia
coli,
including
extended-spectrum
β-lactamases
(ESBL)-producing
strains,
poses
a
global
health
threat
due
to
multidrug
resistance,
compromising
food
safety
and
environmental
integrity.
In
industrial
settings,
rabbits
raised
for
meat
have
the
highest
consumption
of
antimicrobial
agents
compared
other
food-producing
animals.
The
European
Union
is
facing
challenges
in
rabbit
farming
as
declines
antibiotic-resistant
strains
E.
coli
cause
enteric
diseases.
aim
this
study
was
investigate
antibiotic
resistance
profile,
genetic
diversity,
biofilm
formation
cefotaxime-resistant
isolated
from
twenty
farms
Northern
Portugal
address
effect
pressing
issue
industry.
Resistance
critically
antibiotics
observed,
with
high
levels
several
categories,
such
tetracycline,
ampicillin,
aztreonam,
streptomycin.
However,
all
isolates
were
susceptible
cefoxitin
imipenem.
Multidrug
common,
showing
tested.
blaCTX-M
variants
(blaCTX-3G
blaCTX-M9),
followed
by
tetracycline
genes,
most
frequent
genes
found.
ST10
clones
exhibiting
significant
various
categories
harboring
different
detected.
ST457
ST2325
important
sequence
types
their
association
ESBL-E.
been
widely
distributed
variety
environments
host
species.
evaluated
showed
capacity
formation,
which
varied
when
they
grouped
number
classes
(i.e.,
seven
antibiotics,
six
three/four/five
antibiotics).
One
Health
approach
integrates
efforts
combat
through
interdisciplinary
collaboration
human,
animal,
health.
Our
findings
are
worrisome
raise
concerns.
extensive
usage
emphasizes
urgent
need
establish
active
surveillance
systems.
Frontiers in Veterinary Science,
Journal Year:
2024,
Volume and Issue:
10
Published: Jan. 16, 2024
Introduction
Extended-spectrum
beta-lactamase
(ESBL)-producing
Enterobacteriaceae
are
on
the
WHO
priority
pathogens
list
because
they
associated
with
high
mortality,
health-care
burden,
and
antimicrobial
resistance
(AMR),
a
serious
problem
that
threatens
global
public
health
should
be
addressed
through
One
Health
approach.
Non-human
primates
(NHP)
have
risk
of
acquiring
these
antibiotic-resistant
bacteria
due
to
their
close
phylogenetic
relationship
humans
increased
anthropogenic
activities
in
natural
environments.
This
study
aimed
detect
analyze
genomes
ESBL-producing
Escherichia
coli
(ESBL-producing
E.
)
NHP
from
Peruvian
Amazon.
Materials
methods
We
collected
total
119
fecal
samples
semi-captive
Saguinus
labiatus
,
mystax
Saimiri
boliviensis
captive
Ateles
chamek
Cebus
unicolor
Lagothrix
lagothricha
Sapajus
apella
Loreto
Ucayali
regions,
respectively.
Subsequently,
we
isolated
identified
strains
by
microbiological
methods,
detected
susceptibility
tests
following
CLSI
guidelines,
analyzed
using
previously
described
genomic
methods.
Results
7.07%
(7/99)
strains:
5.45%
(3/55)
9.09%
(4/44)
Ucayali,
expressed
ESBL
phenotype.
Genomic
analysis
revealed
presence
high-risk
pandemic
clones,
such
as
ST10
ST117,
carrying
broad
resistome
relevant
antibiotics,
including
three
bla
CTX-M
variants:
CTX-M-15
CTX-M-55
CTX-M-65
.
Phylogenomic
confirmed
clonal
relatedness
lineages
circulating
at
human-NHP
interface.
Additionally,
two
were
EPEC
(
eae
ExPEC
according
virulence
profiles,
one
more
presented
hypermucoviscous
Discussion
report
detection
seven
factors
regions
Some
closely
related
reported
domestic
animals,
highlighting
negative
impact
Amazonian
wildlife.
To
our
knowledge,
this
is
first
documentation
Amazon,
underscoring
importance
adopting
approach
AMR
surveillance
minimizing
potential
transmission
Microorganisms,
Journal Year:
2023,
Volume and Issue:
11(8), P. 1868 - 1868
Published: July 25, 2023
Commensal
Escherichia
coli
with
broad
repertoire
of
virulence
and
antimicrobial
resistance
(AMR)
genes
pose
serious
public
health
risks
as
reservoirs
AMR
virulence.
This
study
undertook
whole
genome
characterization
commensal
E.
from
food-producing
animals
in
Uganda
to
investigate
their
variability
(resistome
virulome).
We
established
that
the
had
high
genomic
diversity
38
sequence
types,
24
FimH
33
O-antigen
serotypes
randomly
distributed
within
three
phylogroups
(A,
B1,
E).
A
greater
proportion
(≥93.65%)
were
resistant
amoxicillin/clavulanate
ampicillin
antibiotics.
The
isolates
AmpC
beta-lactamase
producers
dominated
by
blaEC-15
(71.88%)
tet(A)
(20.31%)
besides
a
diverse
armory
virulence-associated
class
exotoxin,
adhesins,
iron
uptake,
serine
protease
autotransporters
which
varied
host
species.
Cattle
found
be
major
source
carrying
Shiga
toxin
genes,
whereas
swine
was
main
colicin-like
Usp
gene.
underscores
importance
livestock
carrier
large
traits
potential
causing
disease
humans
acquiring
more
genetic
traits.
Foodborne Pathogens and Disease,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 4, 2024
Rats
are
rodents
commonly
found
in
Thailand
that
carry
various
zoonotic
pathogens.
Bacterial
zoonosis
can
occur
a
shared
environment
between
humans
and
rats,
especially
human
communities
agricultural
areas.
Integrative Zoology,
Journal Year:
2023,
Volume and Issue:
19(3), P. 417 - 423
Published: Nov. 20, 2023
Enterobacterales
and
Pseudomonas
aeruginosa
have
been
colonizing
or
infecting
wild
hosts
antimicrobial-resistant
strains
are
present
in
mammals
birds.
Furthermore,
international
high-risk
clones
of
multidrug-resistant
Escherichia
coli
identified
the
implications
Gram-negative
bacteria
zoo
animals
discussed.
The
authors
declare
no
conflicts
interest.
Please
note:
publisher
is
not
responsible
for
content
functionality
any
supporting
information
supplied
by
authors.
Any
queries
(other
than
missing
content)
should
be
directed
to
corresponding
author
article.
Insects,
Journal Year:
2024,
Volume and Issue:
15(11), P. 903 - 903
Published: Nov. 19, 2024
Pest
cockroaches
share
urban
habitats
with
us;
their
prevalence
in
areas
prompts
concerns
regarding
effect
on
human
health,
as
synanthropic
often
host
pathogenic
microorganisms.
Nonetheless,
microbial
associates
these
insects
can
also
be
related
to
biology,
contributing
physiological
homeostasis
and
reproductive
success.
In
this
article,
we
present
detail,
for
the
first
time,
bacterial
community
associated
oriental
cockroach