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New research finds virus passed to wild salmon via fish farms | Canada's National Observer: News & Analysis

A virus tied to kidney and liver damage in endangered Chinook salmon is spreading between open-net pen fish farms and wild stocks in B.C., a new study finds.

How aquaculture is spreading a salmon virus

A genetic analysis of Piscine orthoreovirus shows how it was repeatedly transported from Norwegian salmon farms to aquaculture operations around the world—and on to wild Pacific salmon.

Sewage has stories. Can the U.S. learn to listen?

Sewage epidemiology has been embraced in other countries for decades, but not in the U.S. Will COVID change that?

Bigger than COVID? Study warns land use errors could unleash new pandemics

The study argues activities from recreation to agriculture to energy exploration all risk unleashing new infectious and debilitating diseases.

Scientists are racing to keep up with coronavirus variants and mutations

For most of 2020, scientists weren't very concerned that the coronavirus would evolve. But in a few short months, variants of the virus have become a global preoccupation -- and a potential threat to vaccines.

Scientists are trying to spot new viruses before they cause pandemics

Scientists want to build a weather system for viruses. It would require a big financial investment, plus buy-in from doctors, hospitals and blood banks.

7 virus variants found in U.S. carrying the same mutation

Scientists don’t know yet whether the mutation makes the variants more contagious, but they are concerned that it might.

Why some coronavirus variants are more contagious—and how we can stop them

A cluster of viral mutations seems to be speeding the spread of COVID-19—and scientists are racing to understand how they work.

Amid one pandemic, students train for the next

Researchers have banded together to find safe, virtual ways to teach the principles of microbiology and epidemiology.

Did the Coronavirus escape from a lab?

SARS-2 was not designed as a biological weapon. Many thoughtful people dismiss this notion, and they may be right. But there is no direct evidence for theory that it was a 'natural' emergence from wild animals or an experimental mishap.

The mink pandemic just keeps getting worse

Nine countries have now reported outbreaks on mink farms.

Study: 25% of hospital air samples test positive for COVID-19

One in four air samples collected from hospital intensive care units tested positive for COVID-19 virus particles after they treated infected patients, an analysis published recently by JAMA Network Open found.


Is video streaming during COVID-19 bad for the climate?

A surge in video conferencing and streaming has fuelled concerns about the planet-heating emissions they generate but that worry may be overblown

Ellen R. Wald: Virus stimulus bill mandates pointless pollution study

The huge stimulus bill passed by Congress also mandates a new study that is supposed to report in 6 months on how much carbon must be "removed" from the atmosphere by 2050.
From our Newsroom

We’re dumping loads of retardant chemicals to fight wildfires. What does it mean for wildlife?

As western wildfires become bigger and more intense, state and federal fire agencies are using more and more aerial fire retardant, prompting concerns over fish kills, aquatic life, and water quality.

LISTEN: Why is it taking so long for Pennsylvania to regulate toxic chemicals in drinking water?

The chemicals, known as PFAS, are linked to health effects including cancer, thyroid disease, high cholesterol, pregnancy-induced hypertension, asthma, and ulcerative colitis.

Researchers, doctors call for regulators to reassess safety of taking acetaminophen during pregnancy

The painkiller, taken by half of pregnant women worldwide, could be contributing to rising rates of reproductive system problems and neurodevelopmental disorders like ADHD and autism.

Ocean plastic pollution

Too much plastic is ending up in the ocean — and making its way back onto our dinner plates.

LISTEN: Azmal Hossan on the sociology of climate crises in South Asia

"If we look at the rate of carbon emissions, most is emitted by the developed and industrialized countries, but the problem is poor countries like Bangladesh are the main sufferers."

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