At the beginning of the pandemic, there was an important question to resolve: is coronavirus “airborne”? If it was, then this meant that the virus could transmit through the air from person to person, even over long distances, in indoor environments. We now know the answer is yes.
In the 19th century diseases such as cholera and typhoid taught us the importance of water quality – coronavirus in the 21st century should provide that same realisation on the importance of air quality. Ideally, all indoor environments where people congregate should be fitted with modern, efficient ventilation systems that flush out potentially contaminated air and replace it with fresh, clean air continually. This would prevent the build-up of virus-containing aerosols and reduce the likelihood of transmission of covid-19 and other diseases such as influenza.
With energy costs rising, it is vitally important to find methods of preventing virus transmission that are safe, quick to implement and affordable, writes Dr Alice Bunn in this HSJ article.
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