OVER the past 18 months, we have been staying indoors for prolonged periods due to the implementation of the movement control order to curb the spread of Covid-19. Even before this, we were already spending almost 90% of our time in enclosed spaces be it at home, in the office or other places.
It was initially thought that SARS-CoV-2, the virus that causes Covid-19, was primarily transmitted through droplets generated by an infected person through breathing, coughing or sneezing. More than 13 months after the World Health Organisation declared Covid-19 a pandemic (March 11, 2020), it has formally recognised that SARS-CoV-2 is airborne.
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