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How Long Does SARS-CoV-2 Last on Surfaces? What We Know COVID-19

 It’s on everybody’s mind, to some extent, right now. If a surface is contaminated with the SARS-CoV-2virus, how long does it pose a risk of infection? The virus is thought to mainly spread through respiratory droplets. These are produced in a cloud when a person coughs or sneezes, or even talks. Some potentially-virus-laden droplets might end up getting breathed in by other people in the vicinity. But many of them end up landing on objects like door handles or water faucets.  When that happens, infectious disease experts refer to that door handle as a fomite. And if a person then touches the fomite while the virus is still infectious, they can then spread it to new surfaces, or actually infect themselves. Fomites aren’t just for viruses -- any type of pathogen can create fomites -- but we’re talking about viruses… obvious reasons. The good news is that SARS-CoV-2 virus particles don't last forever -- or even all that long. Eventually, the protein coat that allows the virus to actu

How to make DIY fabric masks

Running out of masks? Many have thought of making them themselves and on the web, tutorials to create masks at home starting from a piece of fabric and other simple materials are now on the agenda. Those are also welcome, but be careful: the fact remains that only certified masks that comply with the regulations are effective.

That said, if you feel safer going out wearing a sort of screen between your nose and mouth and the masks you had in stock are finished (remember that the surgical ones are not reusable several times anyway), they can also be created at home if you have even small sewing skills.

Nothing simpler, but it should be reiterated that these masks do not protect against contagion, but they are an additional measure to protect the mouth and nose from contact with the hands and prevent the most macroscopic parts from being dispersed. These masks are not a medical device, and cannot replace it!

From Malaysia, the young Ching Ng encourages those who are familiar with sewing masks themselves. His online instructional video garnered over a million YouTube views in three weeks:

Fabric, non-woven fabric and elastic, Ching Ng emphasizes that the tutorial is inspired by the post by Dr. Chen Guanting on fabric masks, which is keen to point out to the South China Mornnig Post that "a fabric mask is able to capture at least the 50% of the virus particles, while a surgical mask captures 89% ". The recommendation is therefore that healthy people use fabric masks and that they replace the non-woven filter daily, but that a surgical mask provides better protection, especially if elderly.

In the same way, even in Italy there are now many who put instructions on the web to try their hand at a do-it-yourself solution. So the art seen by me explains how to quickly create a screen with a pocket to insert a piece of parchment paper:

And for those who can't sew?
Don't worry, Eli Crea sewing and creative recycling starts from an old t-shirt or old cloth napkins and in a few moves describes how to get a mask useful for the minimum necessary at least to go shopping:

Finally, remember that for optimal mask hygiene you need:

wash and dry your hands before putting it on
adjust the mask so that it fits perfectly on the face. Once worn comfortably, you will not have to touch your face or the mask itself to readjust it
if you sweat a lot, always keep a spare mask so you can change it for a new one when needed. Fabric masks must be washed daily
Use washable fabrics at high temperatures, taking care that the texture does not thin

by Our Healh Guides

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