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Pawan Kalyan has urged political parties and Jan Sainiks not to protest over the Vizag gas leak when the country is battling COVID-19.

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Scientists from the Smithsonian Migratory Bird Center at the National Zoo have taken blood samples from thousands of birds and mosquitoes in an effort to track the progress of the West Nile Virus in the eastern United States. Come along in this video as Smithsonian scientists net birds living in downtown Washington, D.C., extract small amounts of blood, and then release them back into the "wild."

The post Video: Common birds in Washington, D.C. are helping Smithsonian scientists track intensity of the West Nile Virus appeared first on Smithsonian Insider.

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The post Smithsonian scientists give giant pandas a helping hand at reproduction appeared first on Smithsonian Insider.

Recent work has added dozens of new measurements to star-forming regions in the Milky Way. These measurements have changed the map of the Milky Way, indicating our galaxy has four spiral arms, not two, as previously thought.

The post Very Large Baseline Array telescope is helping Smithsonian astronomers remap Milky Way and Andromeda galaxies appeared first on Smithsonian Insider.

The post 3-D laser scanning is helping solve ancient mysteries at the Smithsonian appeared first on Smithsonian Insider.

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The East Bay Municipal Utility District Wastewater Treatment Plant in Oakland, California. Stanford researchers are testing sewage in hopes of tracking the emergence and spread of COVID-19 outbreaks.; Credit: Justin Sullivan/Getty Images

With coronavirus testing still lagging behind targets, many health officials are searching for other ways to assess the spread of the outbreak. One possibility? Looking at what we flush.

SARS-Cov-2 is often spread through sneezes and coughs, but it also leaves the human body through our waste. Scientists around the world are now testing sewage for the virus, using it as a collective sample to measure infection levels among thousands of people.

While the field of "wastewater epidemiology" existed before the coronavirus pandemic began, it's now rapidly expanding in the hope that it can become a front-line public health tool.

"Normally when I tell people I work with poo, they're not super interested," Stephanie Loeb, a post-doctoral researcher at Stanford University, told NPR in an interview over Skype. But, she says: "There's really a lot of information in our waste."

In the basement of a university building, Loeb pulls samples from freezers filled with vials of raw sewage, collected regularly from 25 wastewater treatment plants around California. Each is a snapshot of that community's health.

"It's this perfect mix, you know," says Krista Wigginton, a professor of environmental engineering at the University of Michigan, also working on the Stanford project. "The entire community is putting samples in at the same time."

She says by the time the virus reaches wastewater treatment plants, it's still possible to read its RNA.

"These are virus particles that are mostly intact, but that are no longer infective," Wigginton says. "That's what it looks like at this point."

The idea is that measuring overall virus levels in sewage over time could indicate whether an outbreak is growing or shrinking, potentially showing that trend earlier than patient testing would.

"That's a real-time measurement of what's happening in the community," says Wigginton. "Whereas some other tools we have, like the number of confirmed cases in clinics, sometimes those are delayed by quite a bit of time because people don't go get checked until maybe their illness has progressed by quite a bit."

The approach is already used for other diseases, such as polio. Health officials are working to eradicate polio around the globe and in Israel, an outbreak was spotted early through the wastewater system.

Stanford University isn't the only group working on coronavirus detection in sewage.

"We have a lot of nicknames," says Newsha Ghaeli, co-founder of the start-up Biobot. "I think some of our customers joke around that we're the 'sewer girls.'"

Biobot is currently testing sewage from about 150 communities across the U.S. Originally, the company was using sewage to monitor the opioid crisis, but quickly started offering coronavirus testing.

"It really caught fire," says Ghaeli. "Within ten days, we hit internal capacity."

Ghaeli says in some cities, they've been able to detect coronavirus in sewage the same week the first cases appeared. Other projects in France and the Netherlands have produced similar results.

In a more challenging scientific feat, the team is also working to estimate the number of individuals who have coronavirus in a community, based on the levels found in sewage.

Calculating that depends on knowing how much virus individuals shed, and some people seem to shed for a longer time than others, complicating the math. Other things could also affect the virus levels, such as how long it takes for the wastewater to reach the treatment plant and rainy weather, which causes runoff to flow in the sewage system in some communities, diluting the samples.

"There's a lot of research that needs to be done before we can say this number in wastewater means this many cases in the community," says Wigginton.

The advantage of testing sewage is that it may capture individuals who are less likely to go to a doctor's offices.

"Every person that is using the toilet has a voice," says Mariana Matus, Biobot's other cofounder. "And they can be taken into account for public health resources and prioritization of resources."

While it's still early in the technology's development, some see it being helpful in detecting new waves of the outbreak.

"I think it is potentially a new role that utilities can play," says Doug Yoder, deputy director of the Miami-Dade Water and Sewer Department in Florida, which serves 2.3 million people. "There has been, at the community level, not a whole lot of data about conditions community-wide."

Miami-Dade County has been sending sewage samples to Biobot for six weeks now, which have shown their virus levels going up and down a bit.

"We've seen in a couple instances the virus counts increase by a factor of six," he says. "And then the week following, it went back down. This data may not yet be ready for primetime in terms of community decision-making, but it has potential and promise for being able to see trends."

Health officials are eager for the information, he says, as one more way to gauge what's really happening with their local outbreak.

This content is from Southern California Public Radio. View the original story at SCPR.org.

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The value of moving animals or plants from a stable population into one that is endangered or even extinct has been questioned, with some suggesting that it will mean that the new population is not well adapted to its environment. However, research on an endangered toad has shown that even when individuals were translocated from great distances, the population was able to genetically adapt to local conditions within a few generations.

The value of moving animals or plants from a stable population into one that is endangered or even extinct has been questioned, with some suggesting that it will mean that the new population is not well adapted to its environment. However, research on an endangered toad has shown that even when individuals were translocated from great distances, the population was able to genetically adapt to local conditions within a few generations.

The post Satellite tracking helping to conserve globally important bird habitat appeared first on The Lead SA.

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