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2020-05-18 Science & Technology
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Hong Kong hamster study shows masks reduce coronavirus spread
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[IsraelTimes] Tests on hamsters reveal the widespread use of face masks reduces transmission of the deadly coronavirus (aka COVID19 or Chinese Plague)
 ...the twenty first century equivalent of bubonic plague, only instead of killing off a third of the population of Europe it kills 3.4 percent of those who notice they have it. It seems to be fond of the elderly, especially Iranian politicians and holy men...
, a team of leading experts in Hong Kong say.
The research by the University of Hong Kong is some of the first to specifically investigate whether masks can stop symptomatic and asymptomatic COVID-19 carriers from infecting others.
Led by Professor Yuen Kwok-yung, one of the world’s top coronavirus experts, the team placed hamsters that were artificially infected with the disease next to healthy animals.
Surgical masks were placed between the two cages with air flow traveling from the infected animals to the healthy ones.
The researchers find non-contact transmission of the virus could be reduced by more than 60 percent when the masks were used.
Two-thirds of the healthy hamsters were infected within a week if no masks were applied.
The infection rate plunged to just over 15 percent when surgical masks were put on the cage of the infected animals and by about 35 percent when placed on the cage with the healthy hamsters.
Those that did become infected were also found to have less of the virus within their bodies than those infected without a mask.
"It’s very clear that the effect of masking the infected, especially when they are asymptomatic — or symptomatic — it’s much more important than anything else," Yuen tells news hounds.
"It also explained why universal masking is important because we now have known that a large number of those infected have no symptom."
Yuen was one of the microbiologists who discovered the SARS virus — a predecessor of the current coronavirus — when it emerged in 2003, killing some 300 people in Hong Kong. 
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