The common cold and Severe Acute Respiratory Syndrome coronavirus 2 (or Covid-19) may be opposite in the impacts they can have on human health, but they belong to the same family. Both are respiratory tract infections caused by coronaviruses.
As a respiratory illness, covid-19 viruses are mostly transmitted via virus-infused droplets from coughs, sneezes, or hands carrying the virus on the skin and touching surfaces or other people.
This is why washing hands continues to be in public health messages in the covid19 crisis, and why we mustn’t forget to do it.
Why we handwash
We spoke to Professor Wahrman, author of The Hand Book: surviving in a germ-filled world, about hand hygiene and covid-19 for our April issue of Safety Management.
She says: “Wash your hands on a regular basis – never touch eyes, or nose or mouth until you have clean hands.” She explains that these are all “direct lines to your body.”
“If [viruses] are on your skin you can wash them away, but in the mucus membranes that’s getting into your body.”
Washing hands when returning to the house from your walk or shopping, or before eating and handling food is a good habit to maintain.
On the website science-focus.com, science writer Sara Rigby explains how the coronavirus has a molecular structure that responds well to soap and water. It looks like a tadpole under the microscope, it has a tail and a head.
She says: "Because the soap molecules are so similar to the ones making up the outer layer of the virus, the molecules in the lipid bilayer are as strongly attracted to soap molecules as they are to each other.
"This disrupts the neatly-ordered shell around the virus, dissolving it in the running water and killing the virus."
Get creative with your 20 seconds
Washing hands for 20 seconds is the message from Public Health England to prevent and slow the spread of covid-19.
Professor Wahrman says you can just count the 20 seconds while handwashing or “sing happy birthday twice.”: “Cover the palm and back of hand and between fingers.”
People are also making washing hands a bit of fun, or even a mindfulness exercise. My mother says she watches the water and concentrates on the sensations of handwashing to encourage her mental wellbeing.
You can turn handwashing into your own personal art form. Chief Scientific Adviser, Patrick Vallance washes his hands while singing Prince’s Raspberry Beret for example. Gloria Gaynor has re-released her hit song I will Survive on youtube which she sings while washing her hands!
Dry them properly
The advice doesn’t end there though. It’s also important to dry your hands in the safest way. For employees who still are using washing facilities in their workplace or public toilets, drying is definitely part of the whole equation.
Professor Wharman recommends using a paper towel, and not a hand drier. She says: “I’m not a fan of fans or air dryers.”
She says that research has shown hand driers can spray germs around the room (the germs of the less responsible handwasher before you). “Usually I have a few tissues in my pocket just in case. Dispose of the paper towel properly.”
Touch the door knob with a paper towel on your way out – viruses can linger on surfaces for up to 72 hours, so if you can avoid touching surfaces in shared spaces that is going to help.
Public Health England handwashing campaign here
British Safety Council posters here
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