Wuhan virus 'super spreader' alarms disease detectives

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Wuhan virus 'super spreader' alarms disease detectives
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Of all the aspects of the rapidly spreading Wuhan virus, this is perhaps the most alarming: A single patient has infected 14 health care workers. That's what's called a 'super spreader' -- and identifying them is a key element of fighting the virus.

Of all the alarming aspects of the rapidly spreading new virus out Wuhan, China, this is perhaps the most alarming: A single patient has infected 14 health care workers.

That's what's called a"super spreader," and disease detectives are hot on that patient's trail. It's one element to stopping the spread of this coronavirus that's killed 17 people and infected more than 500 in five different countries, including the United States. 'use strict';CNN.Videx=CNN.Videx || {};CNN.Videx.mobile={};CNN.INJECTOR.executeFeature.then {CNN.VideoPlayer.

CNN goes to ground zero of Wuhan coronavirus outbreak in China 02:45Super spreaders are a crucial part of a disease outbreak. Think about Mary Mallon, or "Typhoid Mary," who was responsible for widely spreading typhoid in New York City in the early 1900s. Or the Chinese doctor who in 2003 spread SARS, or severe acute respiratory syndrome, to four different countries.

In 2015, there were five super-spreading events of MERS at hospitals in South Korea. In one case, a single patient spread the infection to 82 other people. The ramifications were huge. Two South Korean hospitals closed down, nearly 17,000 people had to be quarantined, and the economic loss was estimated at 9.3 trillion Korean won, or $8.5 billion. In all, 186 people became infected in the South Korea MERS outbreak and 38 died, according to WHO. CNN's Steven Jian contributed to this story.

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