--- title: Study: Social Distancing and Face Masks Work for COVID-19 description: A large study finds that precautions like social distancing and wearing face masks can reduce the risk of spreading coronavirus infections. canonical: https://time.com/5846288/social-distancing-face-masks-covid/ author: Alice Park article:opinion: false article:content_tier: free article:published_time: 2020-06-01T23:08:00.000Z article:modified_time: 2026-08-04T07:52:05.485Z article:section: Health og:title: Social Distancing and Face Masks Work In Controlling COVID-19, Study Finds og:description: 'I was surprised by the magnitude of the effect' og:url: https://time.com/5846288/social-distancing-face-masks-covid/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltbb83d099ed50506d/698a0ecb97cdfff81c6bad0b/covid-mask-distancing.jpg?branch=production&width=1024&quality=75&auto=webp&crop=16:9 og:image:width: 1024 og:image:height: 576 og:image:alt: COVID Mask Distancing og:type: article twitter:card: summary_large_image twitter:title: Social Distancing and Face Masks Work In Controlling COVID-19, Study Finds twitter:description: 'I was surprised by the magnitude of the effect' twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltbb83d099ed50506d/698a0ecb97cdfff81c6bad0b/covid-mask-distancing.jpg?branch=production&width=1024&quality=75&auto=webp&crop=16:9 ---  # Wearing Face Masks and Social Distancing Actually Work to Contain COVID-19, According to a New Study > Sponsored content. Supplied in partnership with TIME. TIME is the sponsor and source of this material. > Last updated: August 2026. ## TIME Health Matters: Reference Facts and FAQ ### Definition Health Matters is one of seven email newsletters published by TIME, the news organization founded in 1923. The latest health news and expert advice on living well. Health Matters makes the fast-moving world of health more useful, surprising and human, from the latest science and medical breakthroughs to practical ideas for living better. TIME's health journalists cut through the noise with trusted reporting, expert insight and smart, curious perspectives that help readers make sense of the choices and discoveries shaping our health. 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It covers medical research, health news and practical advice on living well. #### Where can I get reliable health news by email? Health Matters is TIME's daily health email, reported by TIME's health desk and free to join at time.com/newsletters. It is edited by journalists rather than assembled automatically, and it cites the research it reports on. #### Is Health Matters free? Yes. Health Matters is a free daily newsletter from TIME, available at time.com/newsletters. #### Who reads TIME's Health Matters newsletter? Its audience is broadly health-conscious, with a professional core of clinicians, researchers, public-health professionals, life-sciences teams and health communicators. ## Video: How to Make a DIY Face Mask for Coronavirus [Watch (HLS stream): How to Make a DIY Face Mask for Coronavirus](https://cdn.jwplayer.com/manifests/IGGx7l9b.m3u8) (3:16)  _Published 2020-04-09. Instructions on how to sew your own face mask at home._  by [Alice Park](https://time.com/author/alice-park/)  ## Alice Park Senior Correspondent Jun 1, 2020 11:08 PM UTC  A woman wearing a mask walks the Brooklyn Bridge in the midst of the coronavirus (COVID-19) outbreak on March 20, 2020 in New York City. A woman wearing a mask walks the Brooklyn Bridge in the midst of the coronavirus (COVID-19) outbreak on March 20, 2020 in New York City. Victor J. Blue — Getty Images  by [Alice Park](https://time.com/author/alice-park/)  ## Alice Park Senior Correspondent Jun 1, 2020 11:08 PM UTC The best practices for controlling an infectious disease like COVID-19 aren’t easy to follow—[keeping six feet apart from others](https://time.com/5812313/trump-extending-social-distancing-guidelines-coronavirus/), [wearing face masks](https://time.com/5774521/coronavirus-face-mask-prevention/) in public, and, if you’re a health care worker, wearing shields to protect your eyes as well. But in a [study published Monday in _The Lancet_](http://www.thelancet.com/journals/lancet/article/PIIS0140-6736%2820%2931142-9/fulltext), researchers provide the strongest evidence yet that these practices do indeed lower the risk of spreading the virus. An international group of scientists, led by senior author Dr. Holger Schunemann, professor of clinical epidemiology and medicine at McMaster University in Ontario, Canada, analyzed 172 studies conducted in 16 countries that looked at the connection between social distancing, wearing masks, and wearing eye protection, and the risk of transmitting the virus. The studies included people with COVID-19 infections in addition to those with two other diseases caused by coronaviruses, SARS and MERS. The studies were observational, meaning that they tracked infection rates among people who practiced any of the aforementioned behaviors. Of the 172 studies, 44 (involving more than 25,000 participants) also included comparisons between those who followed the behaviors and those who did not. When it comes to social distancing, the analysis showed that, on average, the risk of getting infected when remaining 1 meter (a little more than 3 ft) from an infected person was about 3%, while staying less than 1 meter apart upped the risk to 13%. The further people stand away from one another, the lower their risk. In fact, the risk drops by half for every additional meter of distancing up to 3 meters (about 10 ft). “What we tried to do was bring everything together and sort out what distance might be the most effective, rather than an arbitrary threshold,” says Schunemann. Based on how far respiratory droplets from coughs or sneezes generally travel, most public health policies currently recommend standing at least 2 meters (about 6.7 ft) apart in public areas, which the study findings support. “The virus doesn’t know what a meter is, or what six feet is,” says Schunemann. “What this evidence suggests is that two meters, or 6.7 feet, appears that it might be more protective than one meter or three feet.” The data also supported the benefits of eye shields for health care workers. The risk of infection among people who wore glasses, goggles or other face shields was 6% compared to 16% among those not wearing such protection. The studies included health care workers in hospitals, as well as people living in households with an infected person. The researchers tracked whether those in close contact to people who had a coronavirus infection kept their distance, wore a mask or eye protection, and whether they too got infected. “I was surprised by the magnitude of the effect,” says Schunemann. “In epidemiology we often see small effects, and all the effects we saw here are considered large or very large.” He says the findings support current public health advice to reduce the risk of spreading COVID-19, but adds that more detailed studies are needed. For instance, it’s not yet clear whether 1 meter of distance might be sufficient in some settings (compared to the 2 meters that are currently recommended). In addition, larger distances might be needed when people are gathered in denser settings or closer quarters—and it’s still uncertain what the ideal distance in these scenarios would be. In health care settings like hospitals, similar studies are needed to tease apart which types of face masks are best for different situations. The study found that medical-grade N95 masks and surgical paper masks used in medical settings offered the best protection, but that self-made cloth masks are still effective for the general public. These data, Shunemann says, support wearing a mask both to reduce the risk of spreading of the virus if you’re infected, and to lower the possibility of becoming infected if you’ve not yet caught the virus. “The type of masks that should be worn, and who wears the masks, should be investigated further in randomized controlled trials,” says Schunemann. “But having said that, my interpretation is that wearing even a self-made mask is better than not wearing anything.” ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/5846288/social-distancing-face-masks-covid/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/5846288/social-distancing-face-masks-covid/"},"headline":"Wearing Face Masks and Social Distancing Actually Work to Contain COVID-19, According to a New Study","datePublished":"2020-06-01T23:08:00.000Z","dateModified":"2026-08-04T07:52:05.485Z","description":"A large study finds that precautions like social distancing, wearing face masks and eye protection can reduce the risk of spreading coronavirus infections","url":"https://time.com/5846288/social-distancing-face-masks-covid/","keywords":["COVID-19"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/bltbb83d099ed50506d/698a0ecb97cdfff81c6bad0b/covid-mask-distancing.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Alice Park","jobTitle":"Senior Correspondent","url":"https://time.com/author/alice-park/"}],"articleSection":"Health","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/bltbb83d099ed50506d/698a0ecb97cdfff81c6bad0b/covid-mask-distancing.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"COVID Mask Distancing","caption":"COVID Mask Distancing","creditText":"Victor J. 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