Medicina,
Journal Year:
2023,
Volume and Issue:
59(2), P. 188 - 188
Published: Jan. 17, 2023
Background
and
Objectives:
Hospital
angiography
suites
with
negative-pressure
ventilation
facilities
are
challenging
to
equip.
During
the
COVID-19
pandemic,
we
aimed
introduce
interventional
radiology
procedures
performed
on
patients
understand
management
of
suite
without
a
facility
before
after
prevent
spread
infection.
Materials
Methods:
Between
December
2020
November
2022,
52
underwent
in
an
suite,
where
no
was
installed.
procedure,
all
staff
members
wore
full
personal
protection
equipment,
procedure
for
COVID-19-positive
patient
completed,
disinfected
entry
prohibited
1-3
h.
In
this
non-COVID-19
were
performed.
Results:
A
total
61
COVID-19.
Of
patients,
21
under
intubation
mechanical
ventilation.
All
according
guidelines
set
by
Infection
Control
Committee
our
hospital.
No
major
or
minor
complications
associated
procedures.
There
cases
infection
among
other
related
patients.
Conclusions:
Interventional
can
play
important
role
solving
problems
caused
patients'
underlying
diseases.
addition,
if
accurate
followed,
both
undergo
room
while
preventing
Molecules,
Journal Year:
2025,
Volume and Issue:
30(7), P. 1419 - 1419
Published: March 22, 2025
Introduction:
Currently,
there
are
no
effective
medications
for
treating
all
the
clinical
conditions
of
patients
with
COVID-19.
We
aimed
to
evaluate
antiviral
activity
compounds
derived
from
L-tyrosine
against
B.1
lineage
SARS-CoV-2
in
vitro
and
silico.
Methodology:
The
cytotoxicities
15
halogenated
were
evaluated
Vero-E6
cells
by
MTT
assay.
was
using
four
strategies,
viral
quantification
performed
a
plaque
assay
qRT-PCR.
toxicity
ADMET
predictor
software.
affinity
these
or
cellular
proteins
stability
their
conformations
determined
docking
molecular
dynamics,
respectively.
Results:
TODC-3M,
TODI-2M,
YODC-3M
reduced
titer
>40%
inhibited
replication
RNA
without
significant
cytotoxicity.
In
silico
analyses
revealed
that
presented
low
binding
energies
between
−4.3
−5.2
Kcal/mol
three
(spike,
Mpro,
RdRp).
TODC-3M
most
stable
proteins.
Conclusions:
promising
YODC-3M,
which
toxicity,
potential
through
different
favorable
affinities
targets.
Therefore,
they
candidates
vivo
studies.
We
analyzed
blood
serum
samples
from
two
unique
female
occupational
cohorts
-
60
nurses
and
40
office
workers
in
San
Francisco,
CA
using
liquid
chromatography
high-resolution
mass
spectrometry
(quadrupole
time-of-flight).
Applying
a
nontargeted
analysis
(NTA)
approach,
we
sought
to
isolate
occupationally
related
chemical
exposures
that
were
by
flagging
features
different
abundance
(mean;
95th
percentile)
or
detection
frequency.
Of
9828
negative
electrospray
ionization
(ESI-)
6898
positive
(ESI+)
detected
features,
1094
938,
respectively,
higher
nurses,
possibly
due
workplace
exposures.
deciphered
the
molecular
structures
of
these
applying
data-dependent
acquisition
(DDA)
targeted
MS/MS
approaches
pooled
each
group,
annotated
them
spectral
databases
MS-DIAL.
Nurses
had
concentrations
14
chemicals
identified
at
Schymanski
Level
1
(N
=
6)
2
8),
as
well
20
tentatively
without
spectra.
Several
may
be
relevant
for
including
PFAS
(6:2
fluorotelomer
sulfonic
acid),
tridecanedioic
acid,
salicylic
medications
acetaminophen
theophylline.
To
our
knowledge,
this
study
is
first
apply
NTA
elucidate
novel
nurses.
Journal of Water and Health,
Journal Year:
2024,
Volume and Issue:
22(3), P. 601 - 611
Published: Feb. 14, 2024
Abstract
Coronavirus
disease
2019
(COVID-19)
is
an
infectious
viral
caused
by
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
that
emerged
at
the
end
of
2019.
SARS-CoV-2
can
be
transmitted
through
droplets,
aerosols,
and
fomites.
Disinfectants
such
as
alcohol,
quaternary
ammonium
salts,
chlorine-releasing
agents,
including
hypochlorous
acid,
are
used
to
prevent
spread
infection.
In
present
study,
we
investigated
efficacy
ionless
acid
water
(HOCl)
in
suspension
spraying
inactivate
SARS-CoV-2.
The
virucidal
HOCl
solution
tests
against
was
evaluated
50%
tissue
culture
dose.
Although
presence
organic
compounds
influenced
efficacy,
treatment
for
20
s
significantly
effective
Wuhan
Delta
strains
test.
atomization
several
hours
reduced
attached
plastic
plates.
These
results
indicate
with
elimination
containing
NaCl
other
ions
may
have
high
This
study
provides
important
information
about
use
solution.
Frontiers in Chemistry,
Journal Year:
2023,
Volume and Issue:
11
Published: June 16, 2023
Introduction:
The
product
labels
of
veterinary
disinfectants
specify
their
expiration
dates
to
prevent
the
use
outdated
products,
as
these
may
result
in
disinfection
and
biosecurity
failures
during
outbreak
situations.
However,
a
clear
standard
for
storage
conditions
diluted
disinfectant
solutions
has
not
yet
been
established,
effects
have
scarcely
investigated.
To
fill
this
research
gap,
our
study
examined
stability
active
ingredients
based
on
change
concentrations
when
stored
at
various
temperatures
time
periods.
Methods:
Twenty
effective
against
either
foot-and-mouth
disease
or
avian
influenza
viruses
were
selected.
following
manufacturer’s
instructions.
Using
selective
analytical
techniques,
samples
that
had
varying
intervals
different
(4,
20,
30,
45°C)
determined.
These
included
soaps
detergents,
acids,
oxidizing
agents,
aldehydes,
copper
compounds.
ingredient
two
determined
freezing/thawing
cycle,
establish
exposed
simulated
winter
conditions.
Results:
Our
results
showed
most
90%
greater
initial
concentrations,
indicating
≥90%
over
21-day
period
under
experimental
there
some
exceptions.
Glutaraldehyde,
formaldehyde,
malic
acid
are
stable
≤
30°C
21
days,
but
decreased
below
45°C,
decline
45°C
days.
potassium
peroxymonosulfate
peracetic
rapidly
declined
with
increasing
temperature
less
than
concentrations.
Discussion:
Based
findings,
we
propose
should
preferably
be
prepared
daily.
if
daily
preparation
solution
is
feasible,
then
can
used
reference,
providing
basic
scientific
data
chemical
commonly
field,
thus
suitable
Foods,
Journal Year:
2023,
Volume and Issue:
12(16), P. 2981 - 2981
Published: Aug. 8, 2023
Sodium
hypochlorite
(NaOCl)
and
peracetic
acid
(PAA)
are
commonly
used
disinfectants
with
a
maximum
recommended
concentration
of
200
ppm
for
food-contact
surfaces.
The
objectives
this
study
were
to
assess
the
effect
pH
water
hardness
on
NaOCl
PAA
efficacy
against
SARS-CoV-2
stainless
steel
(SS).
two
prepared
at
in
150
or
300
final
adjusted
5,
6,
7,
8.
Disinfectants
applied
virus-contaminated
SS
one
minute
room
temperature
following
ASTM
E2197
standard
assay.
infectivity
was
quantified
using
TCID50
assay
Vero-E6
cells.
In
general,
increasingly
hard
decreased
while
increasing
PAA.
Hard
significantly
increased
virus
log
reduction
8
by
~1.5
log.
reductions
observed
5
both
(~1.2
log)
(~2
water,
respectively.
conclusion,
performed
better
than
harder
water.
However,
not
effective
(≤3
contaminated
surfaces,
which
may
facilitate
role
these
surfaces
transmission.
EMBO Molecular Medicine,
Journal Year:
2023,
Volume and Issue:
15(12)
Published: Nov. 16, 2023
Abstract
Viruses
are
vulnerable
as
they
transmit
between
hosts,
and
we
aimed
to
exploit
this
critical
window.
We
found
that
the
ubiquitous,
safe,
inexpensive
biodegradable
small
molecule
propylene
glycol
(PG)
has
robust
virucidal
activity.
Propylene
rapidly
inactivates
a
broad
range
of
viruses
including
influenza
A,
SARS‐CoV‐2
rotavirus
reduces
disease
burden
in
mice
when
administered
intranasally
at
concentrations
commonly
nasal
sprays.
Most
critically,
vaporised
PG
efficiently
abolishes
A
virus
infectivity
within
airborne
droplets,
potently
preventing
infection
levels
well
below
those
tolerated
by
mammals.
present
vapour
first‐in‐class
non‐toxic
virucide
can
prevent
transmission
existing
emergent
viral
pathogens,
with
clear
immediate
implications
for
public
health.
STAR Protocols,
Journal Year:
2023,
Volume and Issue:
4(1), P. 102130 - 102130
Published: Feb. 9, 2023
B-cell
ELISpot
is
an
extremely
sensitive
assay
based
on
the
secretion
of
antibodies
by
B
cells
that
requires
differentiation
into
antibody-secreting
cells.
Here,
we
describe
procedure
to
analyze
both
plasmablast
(PB)
and
memory
cell
(MBC)
responses
specific
SARS-CoV-2
receptor-binding
domain
(RBD)
in
context
acute
infection
vaccination.
We
detail
steps
for
MBC
stimulation,
PB
plating,
detection,
counting
total
IgG
RBD-specific
spots.
For
complete
details
use
execution
this
protocol,
please
refer
Tay
et
al.
(2022).1.
Journal of Water and Health,
Journal Year:
2023,
Volume and Issue:
21(5), P. 537 - 546
Published: April 6, 2023
Disinfectants,
especially
air
disinfectants,
are
necessary
to
prevent
the
potential
spread
of
pathogens
(bacteria
and
viruses)
in
pandemic
era
minimize
pathogens.
Some
commercial
disinfectant
products
that
often
used
generally
contain
chlorine
dioxide
(ClO2)
gas.
This
study
tested
effectiveness
two
different
a
liquid
stick
powder
disinfection
card,
carry
out
pathogenic
bacteria
environment.
These
disinfectants
were
as
medium
for
releasing
gas
which
has
much
stronger
bactericidal
effect.
In
form
stick,
ClO2
is
more
effective
process
rather
than
powder.
The
inhibiting
growth
influenced
by
temperature
area
open
space
covered.
Considering
release
from
both
very
small
(0.002
ppmv/h),
it
takes
ensure
runs
effectively.