Transboundary and Emerging Diseases,
Год журнала:
2025,
Номер
2025(1)
Опубликована: Янв. 1, 2025
Bovine
respiratory
disease
(BRD)
is
a
complex
illness
driven
by
the
interplay
of
various
bacteria
and
viruses,
often
resulting
in
co‐infection.
It
stands
as
one
most
significant
costly
challenges
cattle
industry.
The
development
vaccines
targeting
BRD
pathogens
has
garnered
substantial
attention,
particularly
for
their
ability
to
induce
indirect
immune
protection
unvaccinated
animals
through
effects
vaccinated
individuals.
In
this
study,
we
comprehensively
evaluated
effect
our
developed
attenuated
marker
Mycoplasma
bovis
‐BoHV‐1
combined
vaccine.
Our
results
demonstrated
that
vaccine
effectively
activates
innate
response
cohabitating
with
immunized
This
was
evidenced
increase
serum
lysozyme
levels,
blood
lymphocyte
counts,
elevated
cytokine
levels.
Furthermore,
these
exhibited
effective
activation
humoral
response,
indicated
levels
specific
antibodies
against
pathogens.
Notably,
M.
ELISA
BoHV‐1
neutralizing
all
calves
from
co‐housing
group
turned
positive
second
week,
exceeding
threshold
values
41%
1:8,
respectively.
addition,
total
IgA
IgG
were
significantly
compared
blank
control
group.
conclusion,
shows
notable
effect,
which
essential
controlling
spread
infection
enhancing
calf
survival.
study
greatly
facilitated
sustainable
growth
Animals,
Год журнала:
2024,
Номер
14(4), С. 627 - 627
Опубликована: Фев. 16, 2024
Despite
significant
advances
in
vaccination
strategies
and
antibiotic
therapy,
bovine
respiratory
disease
(BRD)
continues
to
be
the
leading
affecting
global
cattle
industry.
The
etiology
of
BRD
is
complex,
often
involving
multiple
microbial
agents,
which
lead
intricate
interactions
between
host
immune
system
pathogens
during
various
beef
production
stages.
These
present
environmental,
social,
geographical
challenges.
Accurate
diagnosis
essential
for
effective
management.
Nevertheless,
correct
identification
cases
remains
a
daunting
challenge
animal
health
technicians
feedlots.
In
response
current
regulations,
there
growing
interest
refining
clinical
diagnoses
curb
overuse
antimicrobials.
This
shift
marks
pivotal
first
step
toward
establishing
structured
diagnostic
framework
this
disease.
review
article
provides
an
update
on
recent
developments
future
perspectives
diagnostics
prognostic
techniques
BRD,
assessing
their
benefits
limitations.
methods
discussed
include
evaluation
signs
behavior,
biomarker
analysis,
molecular
diagnostics,
ultrasound
imaging,
modeling.
While
some
show
promise
as
standalone
it
likely
that
multifaceted
approach-leveraging
combination
these
methods-will
yield
most
accurate
BRD.
Frontiers in Public Health,
Год журнала:
2023,
Номер
11
Опубликована: Июнь 15, 2023
This
paper
estimates
the
effect
of
antibiotic
usage
in
humans
and
food-producing
animals
on
prevalence
resistance
zoonotic
bacteria
both
animals.
Using
comprehensive
longitudinal
data
from
annual
surveillance
reports
Europe,
we
find
that
are
independently
causally
related
to
The
study
considers
simultaneous
total
antibiotics
identify
marginal
effects
joint
groups.
By
employing
lagged-dependent
variable
fixed-effects
specifications,
provide
a
lower
an
upper
bound
resistance.
also
contributes
scant
literature
how
use
is
other
Veterinary Medicine Research and Reports,
Год журнала:
2024,
Номер
Volume 15, С. 1 - 14
Опубликована: Янв. 1, 2024
Abstract:
Dairy
farming
faces
a
significant
challenge
of
bacterial
infections
in
dairy
calves,
which
can
have
detrimental
effects
on
their
health
and
productivity.
This
review
offers
comprehensive
overview
the
most
prevalent
including
Escherichia
coli,
Salmonella
typhimurium,
dublin,
enterica,
Clostridium
perfringens,
Pasteurella
multocida,
Listeria
monocytogenes,
Mycoplasma
bovis
,
Haemophilus
somnus
.
These
pathogens
cause
various
clinical
signs
symptoms,
leading
to
diarrhea,
respiratory
distress,
septicemia,
even
mortality.
Factors
such
as
management
practices,
environmental
conditions,
herd
influence
incidence
severity
infections.
Efficient
prevention
strategies
include
good
colostrum
nutrient
feeding,
early
detection,
appropriate
treatment,
hygiene
supportive
care.
Regular
monitoring
diagnostic
tests
facilitate
detection
intervention.
The
use
antibiotics
should
be
judicious
prevent
antimicrobial
resistance
care
fluid
therapy
nutritional
support
promotes
recovery.
Diagnostic
methods,
immunological
tests,
culture,
polymerase
chain
reaction
(PCR),
serology,
aid
identification
specific
pathogens.
also
explores
recent
advancements
diagnosis,
providing
valuable
insights
for
farmers,
veterinarians,
researchers.
By
synthesizing
pertinent
scientific
literature,
this
contributes
development
effective
aimed
at
mitigating
impact
health,
welfare,
productivity
young
calves.
Moreover,
more
research
is
required
enhance
understanding
epidemiology
characterization
Keywords:
bacteria,
pneumonia,
vaccination,
calve
Viruses,
Год журнала:
2023,
Номер
15(3), С. 669 - 669
Опубликована: Март 2, 2023
Bovine
respiratory
diseases
(BRD)
are
associated
with
various
predisposing
factors,
such
as
physical
and
physiological
stress
bacterial
viral
pathogens.
These
stressors
viruses
suppress
immune
defenses,
leading
to
growth
in
the
upper
tract
invasion
of
pathogens
into
lower
tract.
Therefore,
continuous
monitoring
causative
would
contribute
early
detection
BRD.
Nasal
swabs
sera
from
63
clinically
healthy
calves
were
continuously
collected
seven
farms
Iwate
prefecture
2019
2021.
We
attempted
monitor
dynamics
BRD-associated
by
multiplex
real-time
RT-PCR
(RT-qPCR)
using
their
nasal
swab
samples.
In
addition,
we
fluctuation
antibody
titers
against
each
pathogen
virus
neutralization
test
(VNT)
sera.
contrast,
89
infected
BRD
28
analyze
samples
RT-qPCR
aim
detect
that
dominant
this
region.
As
a
result,
our
analyses
showed
positive
results
closely
related
significant
increase
VNT
bovine
coronavirus
(BCoV),
torovirus
(BToV),
syncytial
(BRSV).
data
exhibited
BCoV,
BToV,
BRSV,
parainfluenza
3,
Mycoplasma
bovis
have
been
more
frequently
detected
compared
those
calves.
Moreover,
presented
herein
revealed
co-infections
combination
multiple
involved
onset
Taken
together,
study
demonstrates
which
can
simultaneously
pathogens,
including
bacteria,
is
useful
for
Frontiers in Veterinary Science,
Год журнала:
2024,
Номер
11
Опубликована: Фев. 23, 2024
Despite
the
fact
that
pneumonia
remains
a
leading
cause
of
mortality
and
morbidity
in
pre-weaned
calves,
relatively
little
is
known
regarding
effects
concurrent
administration
intranasal
virus
vaccines,
particularly
calves
with
high
levels
maternally
derived
antibodies.
The
objective
this
study
was
to
use
cohort
40
dairy
dairy-beef
female
male
(27
females
13
males)
determine
serological
responses
at
3
weeks
age
(22
±
4.85
days)
two
commercially
available
(IN)
vaccines
for
viruses:
bovine
respiratory
syncytial
(BRSV),
herpes
1
(BoHV-1),
parainfluenza-3-virus
(PI3-V).
groups
were
as
follows:
(i)
Bovilis
IBR
Marker
Live
only®
(IO),
(ii)
INtranasal
RSP
Live®
only
(RPO),
(iii)
Concurrent
vaccination
&
Intranasal
(CV),
(iv)
control
group
non-vaccinated
(CONT).
calves’
response
post-IN
vaccination,
clinical
health
scores,
rectal
temperatures,
weights
measured.
Data
analyzed
SAS
using
mixed
models
logistic
regression.
CV
had
an
average
daily
weight
gain
(ADG)
0.74
(±0.02)
kg,
which
similar
CONT
(0.77
0.02
kg).
no
significant
differences
antibody
between
following
subsequent
parenteral
injections
form
Bovipast
RSP®(antigens;
inactivated
BRSV,
PI3-V,
Mannheimia
haemolytica
)
Live®,
BRSV
PI3-V
increased
both
RPO
groups.
resulted
increase
fever
difference
scores
when
compared
CONT.
Animals,
Год журнала:
2024,
Номер
14(9), С. 1256 - 1256
Опубликована: Апрель 23, 2024
This
study
aims
to
determine
the
serological
profile
of
high-yielding
dairy
cows
for
four
main
viruses
(bovine
alphaherpesvirus
1
(BoAHV1),
bovine
viral
diarrhea
virus
(BVDV),
parainfluenza
3
(BPIV3),
and
respiratory
syncytial
(BRSV))
related
disease
(BRD)
in
cattle
herds
worldwide.
In
this
survey,
497
blood
serum
samples
were
collected
from
non-vaccinated
without
clinical
signs
39
central-eastern
mesoregion
Paraná
State,
South
Brazil.
The
presence
neutralizing
antibodies
was
determined
by
neutralization
(VN)
tests.
VN
against
BoAHV1,
BVDV,
BPIV3,
BRSV
detected
355
(71.4%),
280
(56.3%),
481
(96.8%),
315
(63.4%)
samples,
respectively.
frequencies
seropositive
79.5
(n
=
31),
82.0
32),
100
39),
84.6%
33),
varied
according
type
herd
management
number
herd.
detection
unvaccinated
demonstrated
endemic
circulation
evaluated.
For
BRD
prevention,
it
is
recommended
implement
a
vaccination
program
that
provides
passive
immunity
calves
active
cows.
Future Microbiology,
Год журнала:
2024,
Номер
19(10), С. 903 - 929
Опубликована: Апрель 25, 2024
Antibiotics'
action,
once
a
'magic
bullet',
is
now
hindered
by
widespread
microbial
resistance,
creating
global
antimicrobial
resistance
(AMR)
crisis.
A
primary
driver
of
AMR
the
selective
pressure
from
use.
Between
2000
and
2015,
antibiotic
consumption
increased
65%,
reaching
34.8
billion
tons,
73%
which
was
used
in
animals.
In
dairy
cattle
sector,
antibiotics
are
crucial
for
treating
diseases
like
mastitis,
posing
risks
to
humans,
animals
potentially
leading
environmental
contamination.
To
address
AMR,
strategies
dry
cow
therapy,
alternative
treatments
(nanoparticles,
phages)
waste
management
innovations
emerging.
However,
most
solutions
development,
emphasizing
urgent
need
further
research
tackle
farms.