Experts from the University of Hong Kong announced on Sunday that they have successfully proven from hamster tests that the use of masks significantly reduces the spread of the new coronavirus.
If some people still had doubts about the effectiveness of masks, they should no longer have them. Tests on hamsters reveal that the use of masks significantly reduces the spread of the new corona virus, said Sunday’s 17 myids experts from the University of Hong Kong.
This research is among the first to study whether wearing a mask can prevent symptomatic or asymptomatic carriers of Covid-19 from infecting other individuals.
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Led by Professor Yuen Kwok-yung, a recognized coronavirus expert, the researchers placed cages containing previously infected hamsters near healthy animals.
Surgical masks were placed between the two cages, with an air flow from the cage of diseased animals to healthy animals.
The results showed that the transmission of the virus decreased by more than 60% when the masks were in place. Two-thirds of healthy hamsters were infected within a week when the masks were not in place.
The infection rate dropped to just over 15% when placed on the cages of infected animals and to 35% when placed on the cage of healthy hamsters.
“It is very clear that using masks on infected substances (…) is more important than anything else,” the professor told reporters.
“We now know that a large proportion of those infected do not exhibit symptoms, so universal use of the mask is really important,” he added.
Masks worn very early
Professor Yuen is one of the microbiologists who discovered Sras when it appeared in 2003 and killed about 300 people in Hong Kong. He appealed early in favor of people wearing the mask.
Four months after the onset of the first cases of Covid-19 in China, Hong Kong managed to limit the number of cases to a thousand, with only four deaths recorded.
Experts believe the use of masks as well as extensive testing and tracking campaigns are the reasons for this success in a city of 7.5 million people in China.