Environmental surveillance for Salmonella Typhi to detect the typhoid burden in Yogyakarta, Indonesia
International Journal of Hygiene and Environmental Health,
Journal Year:
2025,
Volume and Issue:
266, P. 114572 - 114572
Published: April 1, 2025
Language: Английский
Prevalence of hepatitis A and E viruses in wastewater in Asian countries
Sunayana Raya,
No information about this author
Sarmila Tandukar,
No information about this author
Hari Prasad Kattel
No information about this author
et al.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
951, P. 175473 - 175473
Published: Aug. 12, 2024
Hepatitis
A
and
E
viruses
(HAV
HEV,
respectively)
remain
a
significant
global
health
concern
despite
advancements
in
healthcare
vaccination
programs.
Regular
monitoring
vaccine
efficacy
of
HAV
are
still
lacking
different
countries.
This
study
aimed
to
investigate
HEV
prevalence
developed,
developing,
least-developed
Asian
countries
using
wastewater
as
surveillance
tool.
total
232
untreated
samples
were
collected
from
six
treatment
plants,
sewage
plant,
or
an
open
drainage
[Nepal
(n
=
51),
Indonesia
37),
Thailand
30),
Vietnam
27),
the
Philippines
17),
Japan
70)]
between
April
October
2022.
Viruses
concentrated
by
simple
centrifugation
polyethylene
glycol
precipitation
method,
followed
viral
RNA
extraction
reverse
transcription-quantitative
polymerase
chain
reaction.
detected
Nepal
(51
%
for
2
HEV),
(3
both
viruses),
(1
24
HEV).
Only
was
found
11
Indonesia,
whereas
only
Philippines,
with
positive
ratio
15
12
%,
respectively.
These
results
highlighted
geographic
variability
prevalence,
underscoring
need
localized
public
strategies
address
specific
hepatitis
challenges
each
country.
Language: Английский
Assessment of environmental factors influencing SARS-CoV-2 in Vietnam's surface water across two years of clinical data
Yadpiroon Siri,
No information about this author
Bikash Malla,
No information about this author
Le Thanh Thao
No information about this author
et al.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
957, P. 177449 - 177449
Published: Nov. 19, 2024
Wastewater-based
epidemiology
(WBE)
is
an
effective,
non-invasive
method
for
monitoring
the
spread
of
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
by
tracking
viral
prevalence
in
water.
This
study
aimed
to
investigate
presence
SARS-CoV-2
surface
water
Vietnam
over
two
years.
One-step
quantitative
reverse
transcription
polymerase
chain
reaction
(qRT-PCR)
assays
were
employed
quantify
and
its
variant-specific
mutation
sites
(G339D/E484A)
pepper
mild
mottle
virus
(PMMoV)
from
a
total
315
samples
(105
per
type)
compare
with
reported
Coronavirus
disease
2019
(COVID-19)
cases
environmental
factors.
was
detected
38
%
(40/105),
43
(45/105),
39
(41/105)
Sites
A,
B,
C,
respectively,
concentrations
3.0-5.6
log
Language: Английский