Articles on Coronavirus outbreak 2020

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Places where lots of animals come into contact can help pathogens move from species to species. Baloncici/iStock via Getty Images Plus

Re-creating live-animal markets in the lab lets researchers see how pathogens like coronavirus jump species

In the real world, new diseases emerge from complex environments. To learn more about how, scientists set up whole artificial ecosystems in the lab, instead of focusing on just one factor at a time.
Camp beds set up for travelers returning to Germany from China, who will be isolated for two weeks to make sure they don’t have coronavirus. YANN SCHREIBER/AFP via Getty Images

Quarantines have tried to keep out disease for thousands of years

Even before people understood how germs spread disease, they tried to isolate the sick to keep them from infecting others.
A man wearing a surgical mask makes a child wear one outside a hospital where a student who had been in Wuhan is kept in isolation in Thrissur, Kerala state, India. AP Photo

WHO declares global health emergency over coronavirus: 4 questions answered

The World Health Organization declared the new coronavirus to be a public health emergency on Jan. 30, 2020. Does the action really change anything? An expert answers four questions.
Whether by biology or behavior, some people in the crowd will transmit coronavirus to more than the average number of others. AP Photo/Kin Cheung

What is a super spreader? An infectious disease expert explains

The novel coronavirus spreading outward from Wuhan, China, will get an assist from a subset of infected people who transmit it to many others.

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