ONCE THE CORONAVIRUS made its human debut, it wasn't long before scientists found the virus in our poop. Fecal samples from the earliest patients, including the first known case in America, revealed people were shedding the virus not only from their noses and mouths, but also through their excrement. This would turn out to be a pivotal discovery: If the virus was in our waste, it had to be in the sewers, too. And the sewers, scientists hoped, held information about how the virus was spreading, Guy H. Palmer, a professor of pathology and infectious diseases at Washington State University, told me. "They started saying, 'We know this is in the wastewater. Can we measure it?"
The answer was a resounding yes. By sampling sewage, scientists discovered they could estimate Covid trends across communities with stunning accuracy.
"Wastewater surveillance"-the practice of monitoring sewage for pathogens, contaminants, or drugs-has since become a game-changer in the fight against Covid, particularly as at-home testing has eclipsed testing in clinics. As Palmer and his colleagues noted in a recent 151-page report for the National Academies of Sciences, Engineering, and Medicine, dozens of cities and states across the US have used sewer data to track Covid outbreaks, identify hotspots for vaccination outreach, decide where to allocate treatments like monoclonal antibodies, and serve as an early alarm for individual communities like schools or universities. In other words, the data contained in our poop has likely saved lives.
This story is from the {{IssueName}} edition of {{MagazineName}}.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber ? Sign In
This story is from the {{IssueName}} edition of {{MagazineName}}.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Sign In
WHEN IN DROUGHT
This obscure yet adaptable grain could be a healthy staple for a warming planet.
GLOBAL WARNING
Why Project 2025 is an environmental catastrophe in the making
BAD HABITS
A spate of recent horror movies recycle tired tropes about nuns-and reveal society's ongoing discomfort with independent women.
Taking the Fifth For a glimpse of the Supreme Court after a second Trump term, look at the radical circuit court that's already driving America to the right.
Imagine obamacare is dead and millions of Americans have lost health coverage.
THE ARCHITECT
TRUMP WANTS TO BE KING. RUSS VOUGHT HAS A PLAN TO MAKE IT HAPPEN.
Losing Faith
As an evangelical leader, I enticed lawmakers and federal judges to adopt a conservative Christian agenda. Donald Trump’s rise proved how wrong I was.
GOD'S COUNTRY
These Christian nationalists have a plan to take over Americafrom small towns to the highest court in the land.
IN THE NAME OF THE MOTHER
How Shyamala Gopalan Harris raised a presidential contender
KILL THE MESSENGER
The anti-disinformation field is retreating under attack.
TRUMPNESIA
To get a second chance, Trump needs voters to forget his disastrous presidency.