Photo: Adam Hypki
'Once 80% of the population wears a mask, the spread of a virus during a pandemic can be stopped almost immediately.'
There is evidence that masks can significantly reduce the amount of virus spread by people who have Covid-19 but may not realise it. To a lesser degree, they also provide protection against catching it. It’s a pro-social action to wear a mask: My mask protects you; your mask protects me.
The campaign for #Masks4All is gaining momentum. In the Czech Republic, it started as a grassroots campaign and then passed into law. Within three days, almost 100% of citizens were wearing homemade masks.
Professor Trish Greenhalgh spoke on the World At One on BBC Radio 4 on Thursday 16 April, pointing out that masks can be made of almost any available fabric, and that even if homemade masks are not 100% effective, if a high percentage of the population are wearing masks, there will be a huge drop in transmission rates.
Wearing cotton masks for essential trips to shops or on public transport is a simple, effective action that will protect all of us, and above all key workers like bus drivers and shop assistants. Homemade masks do not replace existing essential measures - hand-washing, keeping a safe distance, staying in - but they are another tool to fight the virus.Read more