Wearing surgical face masks works
Hong Kong University study demonstrates infection rate reduction
London, 18 May 2020 - It’s now proven scientific evidence surgical masks reduce Covid-19 infection rate by over 50%.
“The findings implied to the world and the public is that the effectiveness of mask-wearing against the coronavirus pandemic is huge,” said yesterday Hong Kong University microbiologist Dr Yuen Kwok-yung showing the outcome of the experiment he conducted with his team on 52 hamsters, the rodent with immune system similar to humans.
The experiment is three-folded:
1) two cages put close, one with infected hamsters and the other with healthy ones: infection rate after 10 days: 67% (two thirds of hamsters became infected).
2) two cages, one with infected hamsters protected by a surgical mask-like barrier and the healthy ones’ cage with no protections: infection rate falls to 16%.
3) The other way round: two cages, one with infected hamsters with no mask/barriers and the healthy ones’ with mask-like protection: infection rate drops to nearly 35%.
In the video microbiologist Yuen Kwok-yung explains the experiment proving effectiveness and extent of rate of contagion with and without surgical face masks.
video copyriht © news.rthk.hk