During
the
COVID-19
pandemic,
measurement
of
SARS-CoV-2
RNA
levels
in
wastewater
quickly
emerged
as
an
additional
tool
for
monitoring
and
to
provide
early
warning
system.
This
led
development
several
regional,
national
international
projects
aimed
at
applying
this
approach.
The
main
principle
is
based
on
detection
viral
signature
untreated
indication
infection
within
connected
populations.
However,
concentration
can
be
impacted
by
dilution
factors
or
population
changes
sewer
shed,
leading
misinterpretation
results.
Therefore,
there
need
normalization
ensure
accurate
representation
numbers.
aim
study
was
evaluate
different
bacterial
markers
their
efficiency
normalizing
WBE
data,
which
will
enhance
accuracy
when
interpreting
concentrations
wastewater.
Weekly
sampling
conducted
from
two
treatment
plants
(WWTP
A
WWTP
B)
eThekwini
district
over
a
period
three
months
(July-October
2022).
Three
biomarkers
(crAssphage,
Bacteroides
(HF
183),
Pepper
Mild
Motile
Virus)
where
chosen
ascertain
most
suitable
data
normalization.
Biomarker
SARS
CoV-2
samples
were
determined
using
droplet
digital
PCR
(ddPCR).
Physicochemical
characteristics
also
identify
potential
impact
these
biomarkers.
To
determine
biomarker,
correlation
analysis
Adaptive
neuro
fuzzy
inference
system
(ANFIS)
model
used.
Average
sampled
WWTPs
ranged
0.28
copies/µL
9.57
copies/µL.
Among
studied,
crAssphage
recorded
highest
compared
PMMoV
HF183
both
WWTPs.
CrAssphage
7943
(±7.07)
8006
(±4.24)
B.
10116
(±120.91)
2474
(±117.37)
had
46
84,1
(±5.48)
observed
Week
1.
showed
greater
association
during
trend
with
(0.499)
than
other
A,
183
(-0.191)
SARS-CoV
2
(-0.562)).
physicochemical
electrical
conductivity
temperature
significant
biomarker
Using
ANFIS
model,
it
shown
that
measured
chemical
oxygen
demand
(COD),
dissolved
(DO),
volatile
solids
(VS).
These
results
indicate
possible
parameters
Furthermore,
quantities
demonstrated
influenced
such
conductivity,
pH
temperature.
indicates
difference
influence
SARS-CoV-2.
all
parameters,
combined,
best
crAssphage,
COD
VS.
highlight
significance
including
characteristic
studies
reliable
As
study,
serve
ix
efficient
surveillance.
In
addition,
has
been
quantification
targets
concern,
2,
may
enhanced
combined
characteristics,
infections.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(13), P. e33873 - e33873
Published: June 29, 2024
A
focus
on
water
quality
has
intensified
globally,
considering
its
critical
role
in
sustaining
life
and
ecosystems.
Wastewater,
reflecting
societal
development,
profoundly
impacts
public
health.
Wastewater-based
epidemiology
(WBE)
emerged
as
a
surveillance
tool
for
detecting
outbreaks
early,
monitoring
infectious
disease
trends,
providing
real-time
insights,
particularly
vulnerable
communities.
WBE
aids
tracking
pathogens,
including
viruses,
sewage,
offering
comprehensive
understanding
of
community
health
lifestyle
habits.
With
the
rise
global
COVID-19
cases,
gained
prominence,
aiding
SARS-CoV-2
levels
worldwide.
Despite
advancements
treatment,
poorly
treated
wastewater
discharge
remains
threat,
amplifying
spread
water-,
sanitation-,
hygiene
(WaSH)-related
diseases.
WBE,
serving
complementary
surveillance,
is
pivotal
community-level
viral
infections.
However,
there
untapped
potential
to
expand
surveillance.
This
review
emphasizes
importance
link
between
health,
highlighting
need
further
integration
into
management.
Microorganisms,
Journal Year:
2025,
Volume and Issue:
13(2), P. 281 - 281
Published: Jan. 26, 2025
Wastewater
surveillance
is
a
powerful
public
health
tool
which
gained
global
prominence
during
the
COVID-19
pandemic.
This
article
describes
development
and
implementation
of
national
wastewater
network
in
France:
SUM’EAU.
Preliminary
work
included
defining
sampling
strategy,
evaluating/optimising
analytical
methods,
launching
call
for
tenders
to
select
laboratories
producing
monitoring
indicators.
SUM’EAU
was
then
deployed
three
stages:
(i)
pilot
study,
(ii)
transfer
activities
from
National
Reference
Laboratory
four
selected
laboratories,
(iii)
extension
system
additional
sites.
Currently,
monitors
SARS-CoV-2
across
54
treatment
plants
mainland
France.
Once
week
on
business
days,
24
h
flow-proportional
composite
samples
are
collected
at
plant
inlets
transported
5
°C
(±3
°C)
partner
analysis.
The
process
involves
sample
concentration,
RNA
extraction,
digital
RT-PCR/q-RT-PCR
detect
quantify
presence
genome
wastewater.
Subsequently,
data
transferred
Santé
publique
France,
French
Public
Health
Agency,
analysis
interpretation.
While
has
been
instrumental
pandemic
holds
significant
potential
broader
application,
securing
sustainable
funding
its
operation
remains
major
challenge.
Scientific Data,
Journal Year:
2024,
Volume and Issue:
11(1)
Published: June 21, 2024
Abstract
During
the
COVID-19
pandemic,
Province
of
Ontario,
Canada,
launched
a
wastewater
surveillance
program
to
monitor
SARS-CoV-2,
inspired
by
early
work
and
successful
forecasts
waves
in
city
Ottawa,
Ontario.
This
manuscript
presents
dataset
from
January
1,
2021,
March
31,
2023,
with
RT-qPCR
results
for
SARS-CoV-2
genes
PMMoV
107
sites
across
all
34
public
health
units
covering
72%
province’s
26.2%
Canada’s
population.
Sampling
occurred
2–7
times
weekly,
including
geographical
coordinates,
serviced
populations,
physico-chemical
water
characteristics,
flowrates.
In
doing
so,
this
ensures
data
availability
metadata
preservation
support
future
research
epidemic
preparedness
through
detailed
analyses
modeling.
The
has
been
crucial
tracking
disease
locally,
especially
rise
Omicron
variant
decline
clinical
testing,
highlighting
wastewater-based
surveillance’s
role
estimating
incidence
Journal of Water and Health,
Journal Year:
2025,
Volume and Issue:
23(3), P. 413 - 427
Published: Jan. 21, 2025
ABSTRACT
During
COVID-19,
surveillance
of
SARS-CoV-2
in
wastewater
has
been
a
promising
tool
for
tracking
viral
infection
at
the
community
level.
However,
addition
to
shedding
rates
within
community,
concentrations
raw
are
influenced
by
several
environmental
factors.
This
study
investigated
effects
characteristics
on
quantification
and
pepper
mild
mottle
virus
(PMMoV)
large
system
with
combined
sewers.
Principal
component
analysis
illustrated
that
water
temperature
negatively
correlates
PMMoV
wastewater,
but
flow
rate
EC
highly
correlated
spring
winter.
The
normalization
using
enhanced
correlation
clinical
data
compared
pH,
rate,
SARS-CoV-2.
reduced
data.
Multiple
linear
random
forest
(RF)
applied
predict
given
confirmed
cases
physicochemical
parameters.
RF
regression
was
best
model
(R2=0.8),
most
important
variables
being
followed
temperature.
is
potent
predictor
presence
wastewater.
enhances
degree
reliability
between
outbreaks
monitoring.
ACS ES&T Water,
Journal Year:
2025,
Volume and Issue:
5(4), P. 1605 - 1619
Published: March 7, 2025
The
emergence
of
COVID-19
in
Canada
has
led
to
over
4.9
million
cases
and
59,000
deaths
by
May
2024.
Traditional
clinical
surveillance
metrics
(hospital
admissions
laboratory-positive
cases)
were
complemented
with
wastewater
environmental
monitoring
(WEM)
monitor
SARS-CoV-2
incidence.
However,
challenges
public
health
integration
WEM
persist
due
perceived
limitations
data
quality,
potentially
driving
inconsistent
correlations
variability
lead
times.
This
study
investigates
how
factors
like
population
size,
measurement
magnitude,
site
isolation
status,
hospital
admissions,
affect
Ontario.
analysis
uncovers
a
direct
relationship
between
the
size
surveyed
sewersheds,
while
magnitude
was
not
directly
impacted
size.
Higher
observed
smaller
likely
reducing
correlation
strength
for
inferring
Population
significantly
influenced
thresholds
identified
at
∼66,000
inhabitants
strong
WEM-hospital
∼68,000
WEM-laboratory-positive
during
waned
vaccination
periods
Ontario
(the
Omicron
BA.1
wave).
During
significant
immunization
BA.2
wave),
these
increased
∼187,000
238,000,
respectively.
These
findings
highlight
benefit
strategic
interventions,
especially
communities.
provides
insights
enhancing
decision
making
disease
through
WEM,
applicable
other
diseases.
Viruses,
Journal Year:
2025,
Volume and Issue:
17(4), P. 473 - 473
Published: March 26, 2025
At
present,
there
is
no
research
that
classifies
the
epidemic
intensity
of
Norovirus
GII
AGE
combined
cases
and
environmental
surveillance
data
at
same
time.
With
reference
to
experience
epidemiological-level
classification
infectious
disease
actual
epidemiological
status
(NoV)
in
Chaoyang
District,
Beijing,
China,
NoV
was
divided
into
five
grades
with
increasing
from
grade
1
5,
which
corresponds
non-epidemic
risk,
general
moderate
high
ultra-high
respectively.
If
synthetic
index
two
consecutive
monitoring
weeks
season
2023–2024
exceeds
a
certain
threshold,
an
early
warning
for
corresponding
will
be
issued
recommendations
on
control
measures
given.
This
study
established
quantified
criteria
based
case
data.
It
provides
other
methods
carry
out
relevant
studies
future.
However,
mathematical
models
cannot
completely
replace
skilled
experience.
Therefore,
when
making
decisions
practice,
it
necessary
refer
opinions
professional
experienced
experts
avoid
bias
model
affecting
strategy
judgment.
PLOS Global Public Health,
Journal Year:
2025,
Volume and Issue:
5(4), P. e0004397 - e0004397
Published: April 9, 2025
By
tracking
infectious
diseases
through
sewage,
municipal-scale
wastewater
surveillance
has
provided
early
warnings
of
future
COVID-19
hospitalisations,
identified
biases
in
diagnostic
testing,
and
is
rapidly
expanding
to
a
broader
array
pathogens.
Despite
applications
the
targeted
delivery
local
interventions,
near-source
received
less
attention
we
know
little
about
time
series
dynamics
contrasting
To
address
this,
conducted
at
five
sites
for
SARS-CoV-2
two
norovirus
GI,
GII,
influenza
A
virus,
B
human
respiratory
syncytial
virus
(RSV
RSV
B).
Sites
were
selected
functions:
an
office,
charity
centre,
museum,
university,
care
home.
The
key
findings
are
(1)
detections
linked
events
(staff
sickness,
enhanced
cleaning,
changing
populations);
(2)
decreased
order
GII
>
GI
≈
B;
(3)
correlation
between
data
national
increases
as
function
catchment
size
viral
prevalence
(examples
include
BA.4/BA.5
variant
peak
museum
winter
season);
(4)
strong
weekday
periodicity
detections,
with
against
case
numbers
increasing
when
modelling
variable
lag
times
faecal
shedding
onset
clinical
diagnosis
(R
2
=
0.45
0.84-0.86);
(5)
log-linear
relationship
frequency
detection
log(catchment
size⋅viral
prevalence)
0.6914-0.9066).
Finally,
propose
use
cases.
Firstly,
rare
or
high-risk
pathogens,
sentinel
systems
provide
warning
outbreaks,
achieving
high
community
coverage
without
behaviour
change
low
cost
versus
testing.
Secondly,
endemic
reveals
long-term
patterns
trends,
effectiveness
policies,
vulnerabilities.
International Journal of Environmental Research and Public Health,
Journal Year:
2023,
Volume and Issue:
20(17), P. 6651 - 6651
Published: Aug. 25, 2023
The
public
health
emergency
caused
by
the
COVID-19
pandemic
stimulated
stakeholders
from
diverse
disciplines
and
institutions
to
establish
new
collaborations
produce
informed
responses
disease.
Wastewater-based
epidemiology
for
grew
quickly
during
required
rapid
implementation
of
such
collaborations.
objective
this
article
is
describe
challenges
results
relationships
developed
in
Detroit,
MI,
USA
among
a
medical
school
an
engineering
college
at
academic
institution
(Wayne
State
University),
local
department
(Detroit
Health
Department),
environmental
services
company
(LimnoTech)
utilize
markers
virus,
SARS-CoV-2,
wastewater
goal
managing
outbreaks.
Our
collaborative
team
resolved
questions
related
sewershed
selection,
communication
results,
addressed
technical
that
included
ground-truthing
sewer
maps,
overcoming
supply
chain
issues,
improving
speed
sensitivity
measurements,
training
personnel
deal
with
disease
under
conditions.
Recognition
our
complementary
roles
clear
partners
enabled
city-wide
data
inform
within
few
months
availability
funding
2020,
make
improvements
understanding
be
made
as
progressed
evolved.
As
result,
outbreaks
Detroit
fall
winter
2021–2022
(corresponding
Delta
Omicron
variant
outbreaks)
were
tracked
20
sewersheds.
Data
comparing
community-
hospital-associated
sewersheds
indicate
one-
two-week
advance
warning
community
subsequent
peaks
viral
hospital
institutional
impelled
provide
good
basis
continuing
wastewater-based
human
pathogen
future.