I did Virology for my graduate degree so I'm used to N95 masks as I had to work in a bio safety class 3 lab. So far I never had an infection. I even took care of a H1N1 patient without getting infected. I think normal 3 ply or 4 ply masks do not prevent the spread of virus at all but still people were advised to put them on due to short supply of N95 and a strategy to calm the general population. I also think social distancing is effective because when I studied seasonal flu epidemiology in Scandinavia, the people there had lower cases of infection compared to overcrowded cities like Hong Kong, China and etc... Scandinavians generally kept a safe distance from each other when they queue up to buy things or taking public transportation. In Asia, people have very little personal space and privacy because city developers want to maximize profit. I agree with boosting immune system instead of relying solely on vaccination.
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Thank you very much for your feedback which is very helpful. I think it’s a good idea that street vendors should wear masks when selling street food and have to be breathing car exhausts all day. They are quite good in reducing viral loads but they don’t prevent the infection.
You’ll be shocked to know that most working people’s masks are very dirty!! They take them off and place them on any surface; they pull the masks onto their heads and under their chins!! They wear their masks from morning till night! What’s more these people don’t have access to running water for washing their hands frequently. So, you see, from my point of view, these masks are so dirty and unhygienic!! And they have the false belief that their masks will protect them from dying of infection.
This is all about fear mongering! My neighbour admitted to me that she was afraid of dying from this virus!! She is very paranoid and presumes other people may be infected!! The official propaganda has driven people to such crazy stress!! They all recite the number of infected people everyday!!
Cheers.
Oh yes, I forgot to mention that COVID-19 infection is also closely linked to those with existing health problems. Those constantly exposed to pollution, pesticides, hazardous environment and etc. are very susceptible to viral infection due to weakened immune system. Tell your neighbor to stay calm and optimistic. It's like learning to swim during childhood. The more one struggles, the more likely to drown.