Testando Água Residual para Combater a COVID-19

Prévia do material em texto

Scientists are 
testing wastewater 
to help stop 
the spread of 
COVID-19.
TESTING
THE
WATER
timeforkids.com
F A M I LY E D I T I O N 5 +A P R I L 2 0 2 2 S T E M V O L . 1 2 N O . 21
Scientists collect a 
wastewater sample 
from a robot at 
the University of 
California San Diego.
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WASTE WATCHERS
Rob Knight is a scientist. He works 
at the University of California San 
Diego. He studies wastewater. That’s 
the water that has been flushed down 
the toilet.
Knight is testing the school’s 
wastewater. He’s looking for the virus 
that causes COVID-19. It can be 
found in people’s pee and poop. 
Knight uses a robot. It collects 
wastewater from a school building’s 
pipes. Sometimes, the robot finds 
the virus. When this happens, Knight 
warns people to stay away from the 
building. Then his team tests people 
for COVID-19. Everyone who uses 
the building is tested. Anyone who is 
infected is kept out.
TIME FOR KIDS April 2022
HEALTH
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This 
wastewater 
sample will 
be taken 
to a lab for 
testing.
A treatment plant in San Diego 
collects wastewater for testing.
Scientists 
at the 
University of 
Arizona are 
also testing 
wastewater. 
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The system works. It helped 
COVID-19 cases at the university go 
down. In January 2021, eight out of 
every 10 wastewater samples had 
the virus. By that spring, fewer than 
one out of 10 samples had the virus. 
It “exceeded our wildest dreams,” 
Knight says.
Speedy Results
A similar system is working for 
larger communities too. Cities and 
states are collecting wastewater. Their 
wastewater information is added 
to an online database. Scientists 
study the data. This helps officials 
understand how the virus spreads.
The database is run by the United 
States Centers for Disease Control 
and Prevention. Amy Kirby is a 
scientist there. She says the database 
could help fight diseases in the future. 
The next dangerous virus could be 
managed more quickly, she says. 
That’s thanks to our pee and poop. 
 —By Brian S. McGrath
exceed verb: to go beyond
wastewater noun: sewage; water that has been 
used
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TIME for Kids Edition 2 (ISSN 2156-9169) is published weekly and mailed monthly from October through May, except for a combined December/January issue, by Time USA, LLC. Volume #12, Issue #21. Principal Office: 3 Bryant Park, New York, NY 10036. Periodical postage paid at 
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licensing and syndication requests, please email syndication@time.com. 
COURTESY HEATHER AMISON (2)
TIME FOR KIDS April 2022
HEALTH
4
I go to Vista Grande Elementary. It’s in El Cajon, California. 
Our school took part in a program called Safer at School 
Early Alert, or SASEA. It’s run by the University of 
California San Diego.
We used a robot to test wastewater for the virus that 
causes COVID-19. We named our robot Harry Botter. 
It was really cool to see it in action. It has tubes that go 
into sewer drains. The tubes bring up wastewater. That 
water goes to a laboratory for testing. 
I’m so thankful for SASEA. I hope there are other 
programs like it. They could help kids around the world get 
back to school safely. —By Allie Amison, 12
Banca do Antfer
Telegram: https://t.me/bancadoantfer
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T I M E O F F
What’s Cooking?
Maya used eggs, sugar, flour, and cinnamon to bake cookies. 
What do you like to bake? Write to us at tfkeditors@time.com. 
Tell us how you get creative in the kitchen. 
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TIME FOR KIDS April 20226
Classifying Animals
On a sheet of paper, list the eight animals below. 
Then write bird or mammal for each one. Hint: Mammals 
are usually covered in hair or fur. 
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7Get more at timeforkids.com.
A N SW E R K E Y
Clockwise from top left . . . 
Caribou: mammal
Polar bear: mammal
Snowy owl: bird
Penguin: bird
Walrus: mammal
Arctic fox: mammal
Seal: mammal
Orca: mammal
CL A S SIF Y ING A NIM A L S