The COVID-19 pandemic presents enormous challenges. A newly emerged virus to which the world’s inhabitants has no immunity, coupled with the speedy movement of individuals across the globe, has set the stage for an outbreak of proparts not seen within the last century.
For an infection with this virus to occur, it must come into contact with the eyes, nostril, or mouth. This occurs when droplets produced by an infected individual (by way of talking, coughing or sneezing), land on the face of another person. These infectious droplets can travel as much as 6 ft, which is the reason to promote social distancing. Touching a surface that is contaminated with infectious droplets and then touching one’s own eyes, nose or mouth, is another way for an infection to occur. Therefore, the key to avoiding an infection is to have these areas of the face covered.
In hospitals, face masks and goggles are typically used to forestall publicity to infectious droplets. Nonetheless, face mask shortages are occurring because of interruptions within the supply chain, which is deeply rooted in China and disrupted by the pandemic. Some health care workers have been pressured to resort to scarves and bandannas in a final-ditch try to protect themselves while providing care. Even when plentiful, face masks are usually not without problems. Once they grow to be wet from the humidity in exhaled air, they lose effectiveness. In addition, some people contact their face more usually to adjust the mask, which increases the risk of an infection if the arms are contaminated.
Cloth masks, although better than nothing, have been shown to be less protective than medical-grade face masks.
We imagine that face shields provide a better solution. There are various types, however all use clear plastic material hooked up to a headpiece to cover the eyes, nostril and mouth, thereby stopping infectious droplets from contacting these areas the place the virus can enter the body. They cover more of the face than masks and forestall the wearer from touching their face. Importantly, face shields are durable, can be cleaned after use, reused repeatedly, and for many people are more comfortable than face masks. Because these shields are reusable and are diversified throughout the provision chains of multiple industries, the current supply is less limited than for face masks. They will even be made at residence with objects from office provide and craft stores.
Each health care worker wants a face shield for protection at work. While face masks are nonetheless needed in some situations, implementation of face shields will vastly reduce the need for face masks and prolong the limited nationwide supply of masks. Engineers have produced designs for face shields which are in the public domain, and fabrication at scale is comparatively simple. To make sure that each health care worker has a face shield, production will need to ramp up to meet the demand by means of present manufacturers and recruitment of additional factories. Because the design is easy, massive speedy production would not be difficult.
Once the health care workpressure is equipped, distribution to the general public should start, with a goal to provide a face shield to every particular person within the country. It ought to be worn anytime an individual leaves their residence, while in any public place, and even at work. Although shelter-at-residence approaches are needed to "bend the curve" of this pandemic, the following societal disruption limits the time that political leaders are keen to maintain such measures. Once each particular person is shielded, nonetheless, reducing restrictions on movement would carry less risk. Universal shielding might reduce reliance on social distancing since infectious droplets can not attain the face of inclined individuals. Handwashing, nevertheless, would stay essential to keep people from infecting themselves with virus discovered on the arms after touching contaminated surfaces.
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