5 reasons to keep wearing your face mask
<p>Mask mandates in most indoor settings <a href="https://www.abc.net.au/news/2022-02-25/covid-mask-rules-australian-states-territories/100854564" target="_blank" rel="noopener">have been dropped</a> in New South Wales, Victoria and the ACT, with Queensland to follow later this week.</p>
<p>Without a mandate, <a href="https://www.ijidonline.com/article/S1201-9712(21)00274-5/fulltext" target="_blank" rel="noopener">mask use tends to drop</a>, so we can expect only a minority of people to be masked in public indoor spaces.</p>
<p>With thousands of cases a day and <a href="https://www.theguardian.com/australia-news/datablog/ng-interactive/2022/feb/21/covid-19-vaccine-rollout-australia-vaccination-rate-progress-how-many-people-vaccinated-percent-tracker-australian-states-number-total-daily-live-data-stats-updates-news-schedule-tracking-chart-percentage-new-cases-today" target="_blank" rel="noopener">just over half</a> (57%) of Australians having received a third COVID vaccine dose and children still under-vaccinated, we may see a surge in infections.</p>
<p>While masks are a small inconvenience, they remain vital in preventing SARS-CoV-2, because the virus <a href="https://theconversation.com/the-pressure-is-on-for-australia-to-accept-the-coronavirus-really-can-spread-in-the-air-we-breathe-160641" target="_blank" rel="noopener">spreads</a> through the air we breathe.</p>
<p>Some people will continue to wear masks to stay safe and achieve a more normal life through the pandemic. Here are five reasons to keep wearing yours.</p>
<p><strong>1. Masks reduce your chance of getting COVID</strong></p>
<p>Many studies <a href="https://www.cdc.gov/mmwr/volumes/71/wr/mm7106e1.htm" target="_blank" rel="noopener">have shown</a> masks protect against COVID. While N95 respirators offer the greatest protection, even cloth masks are beneficial. N95s respirators <a href="https://www.cdc.gov/mmwr/volumes/71/wr/mm7106e1.htm" target="_blank" rel="noopener">lower the odds</a> of testing positive to COVID by 83%, compared with 66% for surgical masks and 56% for cloth masks.</p>
<p>The protection when everyone wears a mask is much greater, because it <a href="https://theconversation.com/which-mask-works-best-we-filmed-people-coughing-and-sneezing-to-find-out-143173" target="_blank" rel="noopener">reduces the likelihood</a> of well people inhaling the virus and prevents infected people from exhaling the virus into the air. If everyone wears a mask, the viral load in the air is much lower.</p>
<p>When we lose the protection of universal masking, it’s a good idea to wear a <a href="https://www.npr.org/sections/goatsandsoda/2022/02/25/1083046757/coronavirus-faq-im-a-one-way-masker-what-strategy-will-give-me-optimal-protectio" target="_blank" rel="noopener">high protection</a> N95 or P2 respirator.</p>
<p><strong>2. You might not know you have COVID</strong></p>
<p>Transmission of the virus without symptoms is a major driver of spread, and we cannot know who around us is infected.</p>
<p>Infected people may be asymptomatic or may not know they’re infected. This is <a href="https://www.news-medical.net/news/20220103/Very-high-rates-of-asymptomatic-infection-with-Omicron-compared-to-prior-SARS-CoV-2-variants.aspx" target="_blank" rel="noopener">especially so</a> for Omicron.</p>
<p>Overall, about one in four infections are <a href="https://bmjopen.bmj.com/content/11/12/e049752.long" target="_blank" rel="noopener">asymnptomatic</a>. But even people with symptomatic infection are contagious before the symptoms start.</p>
<figure class="align-center "><img src="https://images.theconversation.com/files/449353/original/file-20220301-23-73zihg.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/449353/original/file-20220301-23-73zihg.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=400&fit=crop&dpr=1 600w, https://images.theconversation.com/files/449353/original/file-20220301-23-73zihg.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=400&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/449353/original/file-20220301-23-73zihg.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=400&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/449353/original/file-20220301-23-73zihg.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=503&fit=crop&dpr=1 754w, https://images.theconversation.com/files/449353/original/file-20220301-23-73zihg.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=503&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/449353/original/file-20220301-23-73zihg.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=503&fit=crop&dpr=3 2262w" alt="Business woman wears a mask." /><figcaption><span class="caption">You might not know you’re infectious.</span> <span class="attribution"><a class="source" href="https://www.shutterstock.com/image-photo/virus-mask-asian-woman-travel-wearing-1629206074" target="_blank" rel="noopener">Shutterstock</a></span></figcaption></figure>
<p><strong>3. Wearing a mask protects others, including those at risk of severe COVID</strong></p>
<p>Wearing a mask protects others, including those at greatest risk of severe COVID: people with disability, chronic illnesses and <a href="https://www.theatlantic.com/health/archive/2022/02/covid-pandemic-immunocompromised-risk-vaccines/622094/" target="_blank" rel="noopener">suppressed immune systems</a>.</p>
<p>COVID disproportionately affects <a href="https://www.sbs.com.au/language/english/covid-19-update-being-a-migrant-increases-risk-of-dying-from-covid-19-in-australia" target="_blank" rel="noopener">migrants</a> and people from lower socioeconomic groups who are more likely to work in customer-service roles. If you wear a mask, you’re protecting workers, commuters and others you interact with.</p>
<p>Rates of vaccination also <a href="https://www1.racgp.org.au/ajgp/coronavirus/aboriginal-communities-covid-vaccination" target="_blank" rel="noopener">lag</a> among Aboriginal and Torres Strait Islander people, leaving them more vulnerable to COVID in the absence of masks.</p>
<p>Masks also protect children who are vulnerable to COVID, with only <a href="https://www.theguardian.com/australia-news/datablog/ng-interactive/2022/feb/21/covid-19-vaccine-rollout-australia-vaccination-rate-progress-how-many-people-vaccinated-percent-tracker-australian-states-number-total-daily-live-data-stats-updates-news-schedule-tracking-chart-percentage-new-cases-today" target="_blank" rel="noopener">half of five to 11 year olds</a> partially vaccinated and under-fives not yet eligible for vaccination.</p>
<p>Children who wear masks can also protect their peers. In the United States, the <a href="https://www.cdc.gov/mmwr/volumes/70/wr/mm7039e1.htm#T1_down" target="_blank" rel="noopener">risk of outbreaks</a> was nearly four times higher in schools without mask mandates compared to those with mandates.</p>
<p>Omicron is not the flu or a cold, and has accounted for <a href="https://www.seattletimes.com/seattle-news/health/omicron-wave-accounts-for-more-u-s-deaths-than-delta-surge/" target="_blank" rel="noopener">17% more deaths than Delta</a> in the United States. While Omicron generally causes less severe disease than Delta, it has claimed more lives because of vastly higher case numbers.</p>
<p>There is also growing evidence SARS-COV-2 <a href="https://assets.researchsquare.com/files/rs-1139035/v1_covered.pdf?c=1640020576" target="_blank" rel="noopener">persists in the body after infection</a>, which may result in long-term heart, lung and brain damage.</p>
<p><strong>4. Masks protect your colleagues</strong></p>
<p>Many workplaces are insisting on people returning to face-to-face work, some without providing safe indoor air – and now without mask mandates.</p>
<p>The risk of COVID transmission is <a href="https://theconversation.com/time-to-upgrade-from-cloth-and-surgical-masks-to-respirators-your-questions-answered-174877" target="_blank" rel="noopener">greatest when indoors for prolonged periods without adequate airflow</a>. So sitting in an office for eight hours without a mask is a risk, especially if safe indoor air has not been addressed.</p>
<figure class="align-center "><img src="https://images.theconversation.com/files/449130/original/file-20220301-13-1tuox9w.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/449130/original/file-20220301-13-1tuox9w.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=255&fit=crop&dpr=1 600w, https://images.theconversation.com/files/449130/original/file-20220301-13-1tuox9w.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=255&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/449130/original/file-20220301-13-1tuox9w.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=255&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/449130/original/file-20220301-13-1tuox9w.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=321&fit=crop&dpr=1 754w, https://images.theconversation.com/files/449130/original/file-20220301-13-1tuox9w.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=321&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/449130/original/file-20220301-13-1tuox9w.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=321&fit=crop&dpr=3 2262w" alt="Man in a mask sits at his work desk, next to his female colleagues." /><figcaption><span class="caption">Wearing a mask reduces your risk of contracting COVID from co-workers.</span> <span class="attribution"><a class="source" href="https://www.shutterstock.com/image-photo/panoramic-group-business-worker-team-wear-1792685398" target="_blank" rel="noopener">Shutterstock</a></span></figcaption></figure>
<p>At the same time as dropping many workplace mask mandates, NSW has <a href="https://www.begadistrictnews.com.au/story/7629871/nsw-virus-compo-burden-of-proof-opposed/?cs=12" target="_blank" rel="noopener">moved to remove automatic workers’ compensation</a> for people who catch COVID at work.</p>
<p>This is a double disadvantage for workers returning to workplaces with fewer protections and facing greater obstacles to workers’ compensation should they get infected.</p>
<p><strong>5. Others might follow your lead</strong></p>
<p>Being one of the few people wearing a mask when others aren’t, such as in a supermarket, is a daunting prospect for those of us who wish to continue masking. There are <a href="https://www.newstalkzb.co.nz/news/national/covid-19-convoy-protest-mask-wearing-17-year-old-egged-by-aggressive-convoy-protesters/" target="_blank" rel="noopener">reports</a> of masked people being abused and bullied.</p>
<p>However a NSW <a href="https://www.smh.com.au/politics/nsw/more-comfortable-with-masks-voters-want-some-covid-restrictions-to-stay-20220225-p59zs4.html" target="_blank" rel="noopener">survey showed</a> the majority of people in that state wanted mask mandates to remain. The more we normalise masks and the more we see them, the better protected the community will be.</p>
<p>As much as we wish it so, the pandemic is not over and new variants will <a href="http://www.businessinsider.com.au/who-warns-of-covid-19-continuation-and-more-dangerous-variants-2022-2?r=US&IR=T" target="_blank" rel="noopener">likely emerge</a>.</p>
<p>A layered, multi-pronged strategy which includes vaccines, masks, ventilation, testing and tracing is the best way to protect health, the economy and a resumption of normal activities. <img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important; text-shadow: none !important;" src="https://counter.theconversation.com/content/177824/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p>
<p><em><a href="https://theconversation.com/profiles/c-raina-macintyre-101935" target="_blank" rel="noopener">C Raina MacIntyre</a>, Professor of Global Biosecurity, NHMRC Principal Research Fellow, Head, Biosecurity Program, Kirby Institute, <a href="https://theconversation.com/institutions/unsw-sydney-1414" target="_blank" rel="noopener">UNSW Sydney</a></em></p>
<p><em>This article is republished from <a href="https://theconversation.com" target="_blank" rel="noopener">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/covid-mask-mandates-might-be-largely-gone-but-here-are-5-reasons-to-keep-wearing-yours-177824" target="_blank" rel="noopener">original article</a>.</em></p>
<p><em>Image: Getty Images</em></p>