LightNews — News, ranked by scholars

@young.me

#Ontario #wastewater graph updated with October 25 data
- Kingston, London, Peel, Toronto updated: wwater.ca/Ontario
- Also updated: AB, BC, MB, NB, NL, PEI, QC, SK, YT

wwater.ca

Source: health-infobase.canada.ca/wastewater/

Wastewater Virus Signals graph for Ontario

November 4, 2026 at 8:10 PM

Mike Hoerger, PhD, MSCR, MBA

@michael-hoerger.bsky.social

Biobot World Cup deep dive.

In 2026, wastewater continues to be a top predictor of infections, emergency department (ED) visits, and other outcomes. Here, they note a .88 correlation with ED visits, which is as close to perfect as it gets in science.
biobotanalytics.substack.com/p/a-national...

Screenshot showing wastewater levels and ED visits

November 4, 2026 at 7:43 PM

Nature Portfolio

@natureportfolio.nature.com

A study in Nature Communications shows that wastewater from Swedish hospitals favors antibiotic-resistant E. coli, unlike municipal wastewater. The study identifies the antibiotics ciprofloxacin and cefotaxime as key drivers. go.nature.com/4z1xqlx #microsky 🧪

This is figure 3, which shows enrichment of antibiotic-resistant E. coli in hospital sewer biofilms from wastewater.

November 3, 2026 at 5:17 PM

#9 Dream

@gayfabfourfan.bsky.social

“COVID in wastewater had started to decrease across the United States from the late summer wave, but now COVID is increasing again without the usual lull seen after a wave. Many states in the West, South, and Northeast have had high levels of SARS-CoV-2 in wastewater for over a month.”

Ruth Ann Crystal @drruth.bsky.social · 2d

🚨Public health red flags this week:
⚠️Flesh-eating Screwworms hit 3 states (inc. AZ dog) & +497 Measles cases in just 14 days.

📈COVID rebounding
🧪Flu A surging in the West
💊LDN = placebo for Long COVID

Full Dr Ruth Report 👉https://buff.ly/CitTUdk

#medsky #IDsky #covidconscious

Dr. Ruth Report, 11/1/26

COVID rebounds, Flu A surges in the West, LDN fails to beat placebo, 497 new measles cases in 2 weeks, Screwworm in 3 states

buff.ly

November 3, 2026 at 5:19 PM

Denis - The COVID Info Guy

@thecovidinfoguy.bsky.social

Canada: "The COVID-19 activity level in Canada is currently moderate"

Last updated: November 4, 2026

🔺British Columbia (high)
🔺Yukon: (high)

Source: health-infobase.canada.ca/wastewater/

Canada's COVID-19 wastewater surveillance map showing national viral activity as of 25 October 2026.

Canada: COVID-19 wastewater viral activity is currently moderate.

High: 6 monitoring sites.

Moderate: 20 monitoring sites.

Low: 7 monitoring sites.

Not detected: 8 monitoring sites.

Data unavailable: 3 monitoring sites.

Coverage: 44 wastewater monitoring sites, representing 31.4% of Canada's population.

Map: British Columbia and Yukon are shaded dark blue (high), while much of southern Canada is light blue (moderate). Grey striped areas indicate unavailable data.

Black dots: Locations of wastewater monitoring sites across Canada.

November 5, 2026 at 3:59 AM

Betty C. Jung

@bettycjung.bsky.social

High levels of COVID-19 in wastewater in 13 states (Pink).

November 3, 2026 at 2:38 AM

MaskTogetherAmerica

@togetherwemask.bsky.social

Very High COVID wastewater levels in FL, WA, MT. High in CT, TN, SD, NV, CA, HI. Rising cases mean more Long COVID. Protect each other. 😷 #MaskTogetherAmerica
Read: www.instagram.com/p/DfF1vtpGWU...
CDC Wastewater Activity Reports:
www.cdc.gov/wastewater/r...

Headline: COVlD is Not Over.
A CDC Map showing COVlD wastewater level in the U.S.
CDC Wastewater Activity: [https://bit.ly/WasWater]
https://www.cdc.gov/wastewater/respiratory-viruses/national.html
This map outlines the current U.S. COVlD-19 wastewater viral activity levels for the week of Oct 11, 2026 – Oct 17, 2026 (last updated Oct 22, 2026), according to the CDC Wastewater Monitoring Program.
🟣 Very High Levels
States: Washington (WA), Montana (MT), Florida (FL)
🔴 High Levels
States: California (CA), Nevada (NV), Tennessee (TN)
Limited Coverage: South Dakota (SD)
🟠 Moderate Levels
States: Idaho (ID), Utah (UT), Arizona (AZ), New Mexico (NM), Texas (TX), Missouri (MO), Mississippi (MS), North Carolina (NC), South Carolina (SC)
Limited Coverage: Arkansas (AR), Virginia (VA)
🟢 Low Levels
States: Wyoming (WY), Colorado (CO), Nebraska (NE), Kansas (KS), Wisconsin (WI), Illinois (IL), Kentucky (KY), Alabama (AL), Georgia (GA), Maine (ME)
🔵 Very Low Levels
States: Minnesota (MN), Iowa (IA), Louisiana (LA), Michigan (MI), Indiana (IN), Ohio (OH), West Virginia (WV), Pennsylvania (PA), New York (NY), Vermont (VT), New Hampshire (NH), Massachusetts (MA), Connecticut (CT), Rhode Island (RI), New Jersey (NJ), Delaware (DE), Maryland (MD)
Territories: Virgin Islands (VI)
⚪ Limited or No Data
States/Territories: Oregon (OR), North Dakota (ND), Oklahoma (OK), Alaska (AK), Hawaii (HI), Guam (GU)

October 30, 2026 at 12:17 AM

proletkvlt

@proletkvlt.bsky.social

(when the fajitas come out sizzlin voice) When the covid and flu activity in local wastewater testing facilities starts droppin!

November 1, 2026 at 6:59 PM

CHEK News

@cheknews.ca

Three major B.C. shellfish producers have filed a lawsuit against the Village of Cumberland, alleging that years of wastewater treatment violations have contributed to prolonged shellfish harvesting closures in Baynes Sound and millions of dollars in…

Shellfish growers sue Village of Cumberland over alleged wastewater pollution

Three major B.C. shellfish producers have filed a lawsuit against the Village of Cumberland, alleging that years of wastewater treatment violations have contributed to prolonged shellfish harvesting closures in Baynes Sound and millions of dollars in losses.

cheknews.ca

November 3, 2026 at 11:19 PM

Andrea Is Sick of Long Covid

@andreastudiescovid.bsky.social

No Ebola detected in US wastewater, thus far. 😷

Solid Evidence @solidevidence.bsky.social · 3d

In case you were wondering, we haven't detected this ebola strain in US wastewater, at least not yet.

people.com/officials-wa...

Officials Warn Ebola Could Spread Like COVID as Cases Surpass 10K: ‘We Want All Countries to Know That They Are Not Safe’

Health officials have confirmed more than 10,000 cases and nearly 5,000 deaths in the Ebola outbreak, warning that the fatal disease could spread like COVID-19 if precautions aren’t taken.

people.com

November 2, 2026 at 6:30 AM

The Map Center

@mapcenter.com

Wastewater treatment is an important public service! Maybe a landfill or Superfund site?

November 4, 2026 at 1:03 PM

Denis - The COVID Info Guy

@thecovidinfoguy.bsky.social

NSW Health has paused wastewater reporting. They are updating sampling, lab processing, and analysis methods. This major overhaul strongly indicates they are preparing to integrate with the upcoming ACDC National Wastewater Surveillance Program rollout.

Source: www.cdc.gov.au/diseases/sur...

An excerpt from the NSW Respiratory Surveillance Report focusing on the "COVID-19 Wastewater Surveillance Program".
The text states that wastewater surveillance data is not being reported for the current week. It explains that this pause is due to ongoing changes being implemented for sampling, laboratory processing, and data analysis methods. The notice concludes by stating that reporting will resume once these revised methods are fully established and a sufficient amount of data has been collected.

November 5, 2026 at 12:35 AM

Mask Bloc Eugene/Springfield

@maskbloceug.bsky.social

It’s Wastewater Wednesday! How are COVID levels? We’re using two sources to help us keep track of the country and our state of Oregon.

Thank you to @michael-hoerger.bsky.social for the map and graph, and OHA for continuing to track data coming from our wastewater treatment centers!

Two screenshots against a photo of red pomegranate seeds. The first is a map of the US showing COVID transmission, with states colored light blue to berry pink depending on severity. Lane County and the majority of counties in Oregon are berry pink which indicates very high transmission. Text notes that this data was last updated on October 24. The second screenshot is text that reads, “94% of Oregon community wastewater treatment centers were positive for SARS-CoV-2 on the most recent sample.”

November 4, 2026 at 9:26 PM

European Investment Bank

@eib.org

In 🇲🇪, we’re supporting wastewater upgrades in Mojkovac to improve services for 5,000+ households & protect the Tara River and other natural resources.

The EU-funded project includes new sewerage infrastructure and an upgraded wastewater treatment plant👉 go.eib.org/Montenegro_EIB

November 4, 2026 at 2:48 PM

Olivia Messer

@oliviamesser.bsky.social

Coleman, an evangelical Christian and Republican, believes Abbott was protecting an industry push to spread treated drilling and fracking wastewater on farms.

“We can’t get no help from the state level,” he said.

November 3, 2026 at 4:37 PM

Shola Hoon

@sholahoon.bsky.social

What are the real ideas to contain energy use so communities are shielded and what are wastewater recycling plans for better stewardship of Earth.

November 3, 2026 at 11:52 AM

Denis - The COVID Info Guy

@thecovidinfoguy.bsky.social

🇳🇿New Zealand: Wastewater COVID-19 Surveillance: Week Ending 18 Oct 2026

Wastewater Variant Analysis - Last updated: 4 Oct 2026

• PQ.16.1.1 (~57.6%)
• NB.1.8.1 (~17.7%)
• PJ.2.1: (~14.9%)
• RF.5: (~4.1%)
• XFG: (~3.5%)
• Recombinant (~2.2%)

Source: poops.nz

New Zealand national COVID-19 trends from April 2025 to October 2026, comparing SARS-CoV-2 wastewater levels (green) with reported COVID-19 cases (blue).
- Wastewater: Peaks around May 2025 (5.3 million genome copies per person per day) and February 2026 (6.2 million).
- Reported cases: Highest around June 2025 (150 cases per day), with another peak in February 2026 (around 115).
- Mid-2026: Both indicators generally decline, with smaller fluctuations.
- October 2026: Wastewater levels and reported cases remain relatively low, with a slight uptick at the end.
- Both indicators show similar overall trends, although peaks differ in timing and size.

New Zealand wastewater variant analysis showing weekly percentages of SARS-CoV-2 variants from May 2025 to October 2026.
- NB.1.8.1 (light turquoise): Dominant through much of 2025 and 2026, but declining in recent months.
- XFG (blue): Circulated throughout the period, with fluctuating prevalence.
- BA.3.2 (yellow): Rose sharply during April–June 2026, reaching around 60% in some weeks before declining.
- PQ.16.1.1 (pink): Emerged in May 2026 and increased significantly by September–October.
- JN.1 (purple): Increased during August–September 2026.
- October 2026: PQ.16.1.1 and NB.1.8.1 account for the largest shares, with smaller contributions from XFG, JN.1 and other variants.
- Each stacked bar represents the percentage of variants detected in wastewater for one week.

November 3, 2026 at 11:30 PM

Rep. Teresa Leger Fernández

@fernandez.house.gov

Wastewater treatment is essential to the health of our communities. That’s why I delivered funding for the city of Lovington to make much needed upgrades to their plant!