COVID-19, Close Face Covering Definitely Slow the Spread

Tuesday, July 14, 2020 - 15:28
mask

Six months into the outbreak, health authorities, WHO and immunologists are still emphasizing on wearing face coverings as an effective way against COVID-19.

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According to an ISCA report, people all around the world are making attempts to successfully protect themselves from COVID-19, and based on scientific researches carried out and released in The Lancet, a weekly peer-reviewed general medical journal, washing hands frequently, practicing physical distancing and wearing cloth face masks or coverings do offer protection against spread of COVID-19.

For the best protection against the new coronavirus, a mask should be well-fitting and contain multiple layers of quilted fabric. Considering the importance of wearing face coverings, some questions are being generally asked that what kind of face mask gives the best protection against Covid-19.

In order to answer on type of mask to wear to cut the risk of contracting coronavirus, the Guardian reported that surgical grade N95 respirators offer the highest level of protection against Covid-19 infection, followed by surgical grade masks.

The evidence on the protective value of single-use paper masks or reusable cloth coverings is less clear, but still suggests that face masks can contribute to reducing transmission of Covid-19. Analysis by the Royal Society said this included homemade cloth face masks.

Based on a report released by Medical Today, a new study investigates how effective face masks of different designs are at inhibiting the transfer of airborne droplets from coughs and sneezes.

A new study has used laser visualization experiments to demonstrate the effectiveness of homemade masks of various designs. These masks are roughly as good at preventing the spread of infection as commercially produced cone-shaped masks, researchers from Florida Atlantic University (FAU), in Boca Raton, report in a Physics of Fluids study paper.

The proper way of wearing masks is that the face must be covered from the bridge of nose to under the chin. It should be loose fitting but still secure enough to stay in place. CDC announced that masks may help slow the spread of COVID-19, and help keep people who may unknowingly have the virus from transmitting it to others.

Studies have found that viral load peaks in the days before symptoms begin and that speaking is enough to expel virus-carrying droplets. In this regard, face masks must be worn in public transportation, school transport, taxis and private hire vehicles. People visiting shops are also advised, but not required, to cover their face if they judge that social distancing is not always possible.

The biggest thing with COVID-19 now that shapes all of this guidance on masks is that we cannot tell who is infected. There is a lot of asymptomatic infection, so everybody has to wear a mask. A recent study published in Health Affairs, for example, compared the COVID-19 growth rate before and after mask mandates in 15 states and the District of Columbia. It found that mask mandates led to a slowdown in daily COVID-19 growth rate, which became more apparent over time. The first five days after a mandate, the daily growth rate slowed by 0.9 percentage-points compared to the five days prior to the mandate; at three weeks, the daily growth rate had slowed by 2 percentage-points.

Another research looked at coronavirus deaths across 198 countries and found that those with cultural norms or government policies favoring mask-wearing had lower death rates.

According to the CDC, recent studies indicate a significant portion of people who have COVID-19 don’t show symptoms, and the virus can spread before they realize they are sick. This research — combined with the fact that the coronavirus can spread through close proximity to others, often by speaking, coughing or sneezing — led to their recommendation for the general public to wear cloth masks in public, especially in situations where physical distancing may be difficult, such as grocery stores or on public transportation, and in areas where there is a significant amount of community transmission.

In times of a pandemic, wearing a mask will prevent you from spreading COVID-19. Besides that, practicing social distancing (approximately 6 feet) from others and avoiding gathering are the best ways to protect us against COVID-19.

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