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Articles on COVID-19

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A sense of normalcy is returning to South Korea but the U.S. lacks the testing capacity and contact tracing system the country relies on. AP Photo/Ahn Young-joon

How South Korea flattened the coronavirus curve with technology

In addition to testing and special facilities for COVID-19 patients, the country’s government-run tracking system allows the health care system to identify infected people and their contacts.
Discolored water can be caused by heavy metals, such as iron or copper. Iron can also act as a nutrient for organisms to grow in the pipes. Kyungyeon Ra/Purdue University

The coronavirus pandemic might make buildings sick, too

Office buildings have been left mostly empty for weeks amid the coronavirus pandemic, leaving standing water in pipes where harmful organisms can grow. What happens when those buildings reopen?
A woman is tested in Ha Loi village in Hanoi which was put in 28-day quarantine on April 8 after a resident tested positive for COVID-19. Luong Thai Linh/EPA

Vietnam has reported no coronavirus deaths – how?

Intensive screening, testing, quarantine and public communication have helped keep numbers of COVID-19 cases in Vietnam very low.

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