The importance of frequent handwashing to tackle transmission of COVID-19 and many other infectious diseases

As government’s across the world announce the easing of lockdown measures it is understandable to feel that the threat of COVID-19 has subsided for now. However, it is more important than ever to exercise caution. In this blog, Sanjib Bhakta, Professor of Molecular Microbiology and Biochemistry at Birkbeck reiterates and breaks down the importance of hand washing in the prevention of the spread of the virus.

 

We have been consistently reminded to wash our hands several times a day, but do we legitimately understand why? I am here to explain to why the Government is urging us to wash our hands with the intent to intrinsically stop the spread of COVID-19 and other, similar infectious diseases.

The novel infective Coronavirus causes a respiratory illness which implies that it is circulated through the virus-laden air-borne particles from sneezes and coughs, if we fail to catch sneezes/coughs in a tissue and carefully discard of it, the virus consequently ends up on surfaces where they can survive. Generally, we may fail to do this due to inconvenience and our predispositions; however, if somebody else touches that contaminated surface, the virus is able to transfer onto their hand and eventually can cause new infection to a susceptible host.

A recent study indicated that people touch their face 23 times an hour on average, the virus on your hands subsequently infects our eyes, mouth or nose when we touch it. Hence, the significance of washing your hands; not only to decrease the chances of you contracting the virus, but to prevent the spread on a global scale. When we come to talk about preventative measures, to decrease the chances of it spreading further, the public have a huge role to play.

Washing your hands on a regular basis ensures a decreased risk of contaminating surfaces and spreading infection. So, we have the basis of the importance of ‘washing’ your hands, but it is paramount that you wash your hands in an accurate manner for optimal efficiency in controlling the spread. Any Coronavirus is contained within a lipid envelope – essentially, a layer of fat. Soap has the ability to break this fat apart. As a result, the virus is unable to infect you and others. Moreover, using the correct handwashing technique mechanically pries off the germs and rinses them away.

Watch a video demonstrating the best way to wash your hands.

This video courtesy to Sreyashi Basu: While the video is demonstrating a good hand washing protocol, in order to save water, you should consider using taps with auto-off sensor or with elbow levers where available.

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