Good ventilation is more important than wearing a mask (which remains a necessity) to stop the spread of the coronavirus, but there is no attention given whatsoever to that, says an epidemiologist.
Cape Town – Wearing a mask when you go to the supermarket, for example, might not be enough to protect you against contracting the coronavirus – if you go later in the day.
Air-conditioning systems form a major part of pandemic safety measures, playing a major role in the cleanliness and circulation of air, and an even bigger role in minimising the spread and survival of airborne viruses, both in the air and on surfaces. ’’When indoors, ventilation mitigation strategies can help reduce viral particle concentration. The lower the concentration, the less likely viral particles can be inhaled into the lungs ; contact eyes, nose and mouth; or fall out of the air to accumulate on surfaces.
In First World countries, this is a pubic health and safety issue at buildings that are being inspected on a regular basis. But there has been no planning, extra care taken or awareness created when it comes to ventilation in public buildings, shops, malls and office buildings in South Africa, Barnes said.
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