Aerosols sprayed from flushing a public urinal can spread COVID-19, a new study found
4 years, 4 months ago

Aerosols sprayed from flushing a public urinal can spread COVID-19, a new study found

Firstpost  

When men use urinals, aerosols can reach their thigh within 5.5 seconds as compared to the toilet flush, which takes 35 seconds to reach slightly higher. The simulations performed by the scientists revealed that the trajectory of the tiny particles ejected by flushing a urinal “manifests an external spread type, with more than 57 per cent of the particles travelling away from the urinal.” They said when men use urinals within a public restroom, these tiny particles can reach their thigh within 5.5 seconds when compared to the toilet flush, which takes 35 seconds to reach slightly higher. The climbing speed is much faster than toilet flushing.” Since urinals are used more frequently within densely populated areas, the researchers pointed out that particles will travel faster and farther, posing a serious public health challenge. “Wearing a mask should be mandatory within public restrooms during the pandemic, and anti-diffusion improvements are urgently needed to prevent the spread of COVID-19,” he added.

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History of this topic

Toilets Release Aerosol Spray With Every Flush
2 years ago

Toilets Release Aerosol Spray With Every Flush

The Quint  

Toilets spew invisible aerosol plumes with every flush – here’s the proof, captured by high-powered  lasers Aerosol plumes from commercial toilets can rise 5 feet above the bowl. My colleagues Aaron True, Karl Linden, Mark Hernandez, Lars Larson and Anna Pauls and I were able to use high-power lasers to illuminate these plumes, enabling us to image and measure …

Aerosol study shows how SARS-CoV-2 spreads
2 years, 5 months ago

Aerosol study shows how SARS-CoV-2 spreads

The Hindu  

The transmission of SARS-CoV-2 through the air has been studied at various places around the world. “Having separate COVID-19 wards and negative pressure rooms are good, because infection does not spread very far,” says Dr. Rakesh Mishra, Director, Tata institute for Genetics and Society, Bengaluru, who led the study. The group detected the virus when they sampled the air in …

Coronavirus Becomes 90% Less Infectious Within 20 Minutes of Being Airborne, Reveals UK Study
2 years, 11 months ago

Coronavirus Becomes 90% Less Infectious Within 20 Minutes of Being Airborne, Reveals UK Study

News 18  

A groundbreaking new study that attempts to find how the deadly coronavirus survives in exhaled air has revealed that the virus becomes 90 per cent less infectious within 20 minutes of becoming airborne therefore losing most of its ability to infect after the first five minutes. While conducting the study, the researchers developed an apparatus to generate virus-containing particles and …

As fear of the virus rises again, should you avoid public toilets?
3 years ago

As fear of the virus rises again, should you avoid public toilets?

Firstpost  

Although the number of coronavirus cases in India has significantly decreased now, but since last few days, there has been a growing global concern again, due to the emergence of the new variant, omicron. And now, as people have started going to office in many parts of the country, enjoying parties or vacation, many restaurants and shopping malls are also …

Airborne transmission of Covid-19 random, social distancing alone not enough to control spread: Study
3 years, 1 month ago

Airborne transmission of Covid-19 random, social distancing alone not enough to control spread: Study

India Today  

A new study has shown that the airborne transmission of Covid-19 is highly random and suggests that social distancing alone is not effective in controlling its spread, reiterating the importance of vaccination and face masks. READ: Covaxin shows 50% effectiveness against symptomatic Covid-19, says Lancet study “One part of the way that this disease spreads is virology: how much virus …

Study shows Covid variants getting better at travelling through air
3 years, 2 months ago

Study shows Covid variants getting better at travelling through air

Hindustan Times  

A study conducted by researchers of the University of Maryland shows that the SARS-CoV-2, responsible for causing Covid-19, is becoming better at becoming airborne with the emergence of new variants. A lone passenger wearing a protective face mask walks from a deserted train platform at Flinders Street during morning commute hours on the first day of a lockdown as the …

Covid-19 virus evolving to get better at becoming airborne: Report
3 years, 3 months ago

Covid-19 virus evolving to get better at becoming airborne: Report

India Today  

The variants of SARS-CoV-2 are getting better at travelling through the air, and people must wear tight-fitting masks and ensure better ventilation, in addition to getting vaccinated, to help stop spread of the virus that causes Covid-19, according to a study. The study, published in the journal Clinical Infectious Diseases, also found that loose-fitting cloth and surgical masks reduced the …

Little risk of picking up coronavirus on a plane: NLR
3 years, 6 months ago

Little risk of picking up coronavirus on a plane: NLR

Dutch News  

Sitting in a plane fewer than four rows away from with someone who is infected with coronavirus will result in only a very minor chance of infection, according to research by the Dutch aerospace institute NLR and public health body RIVM for the transport ministry. At between one in 160 and one in 1800 cases, the risk of catching the …

Coronavirus more likely to spread indoors through maskless interaction: Study
3 years, 6 months ago

Coronavirus more likely to spread indoors through maskless interaction: Study

Deccan Chronicle  

Washington: Speaking in indoor spaces without wearing a mask poses the greatest risk of spreading SARS-CoV-2, the virus that causes COVID-19, to others, a study has found. The research, published in the Journal of Internal Medicine on Tuesday, describes how different sized respiratory droplets emitted while speaking have a range of sizes, and can carry different amounts of virus. "When …

Coronavirus more likely to spread indoors through maskless interaction: Study
3 years, 6 months ago

Coronavirus more likely to spread indoors through maskless interaction: Study

India TV News  

Speaking in indoor spaces without wearing a mask poses the greatest risk of spreading SARS-CoV-2, the virus that causes COVID-19, to others, a study has found. The research, published in the Journal of Internal Medicine on Tuesday, describes how different sized respiratory droplets emitted while speaking have a range of sizes, and can carry different amounts of virus. "When the …

Office, House, Or Bus: Just Make Sure Windows Are Open To Beat Covid-19. And, Yes, Wear A Mask
3 years, 7 months ago

Office, House, Or Bus: Just Make Sure Windows Are Open To Beat Covid-19. And, Yes, Wear A Mask

News 18  

At a time when the lengths that humanity is going to throw the novel coronavirus out of our lives seems to be matched only by the strides that the virus itself is making with trickier variants and deadlier surges, new guidelines issued by authorities point to the need for guarding more strictly against how the virus seems to be spreading. …

How and Why Face Masks are Effective in Limiting the Spread of Covid-19
3 years, 7 months ago

How and Why Face Masks are Effective in Limiting the Spread of Covid-19

News 18  

Researchers have found under which conditions and in which ways, masks actually reduce individual and population-average risks of being infected with Covid-19 and help mitigate the coronavirus pandemic. The study, led by researchers from the Max Planck Institute for Chemistry in Germany’s Mainz, showed that in most environments and situations, even simple surgical masks effectively reduce the transmission of SARS-CoV-2 …

Aerosols from Covid-19 infected person can travel in air upto 10 metres: Govt
3 years, 7 months ago

Aerosols from Covid-19 infected person can travel in air upto 10 metres: Govt

Hindustan Times  

The government on Thursday issued a set of guidelines to stop the spread of the coronavirus disease as the country reels under the second wave of the pandemic. Stopping the transmission of the Covid-19 virus from a person to another person will decrease the infection rate of the disease to a level where it can eventually die, according to the …

Aerosols can travel 10 metres, ventilation can cut transmission risk: Govt's new Covid guidelines
3 years, 7 months ago

Aerosols can travel 10 metres, ventilation can cut transmission risk: Govt's new Covid guidelines

India TV News  

The Centre has issued new guidelines to stop the spread of Covid-19 amid a gloomy situation. The new advisory, which has been issued by the Office of the Principal Scientific Adviser to the Centre, K Vijay Raghavan, said that apart from physical distancing and the use of masks, ventilation can decrease the risk of transmission. Measures to improve ventilation in …

Aerosols carrying Covid-19 virus can travel in air up to 10 meters: Centre
3 years, 7 months ago

Aerosols carrying Covid-19 virus can travel in air up to 10 meters: Centre

Deccan Chronicle  

New Delhi: Cautioning people to maintain social distance to prevent the transmission of the Covid-19 virus, the office of the Principal Scientific Adviser to the Government of India on Thursday said that aerosols, one of the key transmission mode of the SARS-CoV-2, can travel in the air up to 10 meters. "Aerosols and droplets are key transmission mode of the …

Covid is airborne, scientists say. Now authorities think so too
3 years, 7 months ago

Covid is airborne, scientists say. Now authorities think so too

Live Mint  

A quiet revolution has permeated global health circles. A “paradigm shift is needed on the scale that occurred when Chadwick’s Sanitary Report in 1842 led the British government to encourage cities to organize clean water supplies and centralized sewage systems,” they wrote. “Professor Morawska’s contribution, on the background of world-leading expertise in aerosol science, made a real impact by forcing …

Scientists call for more focus on ventilation in stopping Covid
3 years, 7 months ago

Scientists call for more focus on ventilation in stopping Covid

Dutch News  

A group of 39 scientists from all over the world, including the Netherlands, are calling on governments to pay more attention to the role of good ventilation in the battle against coronavirus. In an article in leading academic journal Science, they suggest that good ventilation can prevent coronavirus being spread by aerosols, or tiny droplets which hang in the air. …

Scientists call for more focus on ventilation in stopping Covid
3 years, 7 months ago

Scientists call for more focus on ventilation in stopping Covid

Dutch News  

A group of 39 scientists from all over the world, including the Netherlands, are calling on governments to pay more attention to the role of good ventilation in the battle against coronavirus. In an article in leading academic journal Science, they suggest that good ventilation can prevent coronavirus being spread by aerosols, or tiny droplets which hang in the air. …

Flushing Public Toilets Propels Coronavirus 5 Feet Up in the Air, Indian-origin Researchers Warn
3 years, 8 months ago

Flushing Public Toilets Propels Coronavirus 5 Feet Up in the Air, Indian-origin Researchers Warn

News 18  

Respiratory droplets are the most prominent source of transmission for Covid-19. However, flushing a toilet can generate large quantities of microbe-containing aerosols depending on the design, water pressure or flushing power of the toilet at public restrooms, an Indian-origin researchers-led study has warned. “After about three hours of tests involving more than 100 flushes, we found a substantial increase in …

Keeping Your Windows Open Could Help Curb the Spread of Covid-19, Say Experts
3 years, 8 months ago

Keeping Your Windows Open Could Help Curb the Spread of Covid-19, Say Experts

News 18  

Opening windows and ventilating spaces should be at the heart of efforts to prevent the spread of Covid-19, a group of experts said Thursday, arguing that confusion over airborne transmission meant this simple measure was being overlooked. The virus is most likely to spread through inhalation at close range rather than through contact with surfaces or at long range, said …

Coronavirus spread at Brisbane's Hotel Grand Chancellor 'most likely' from airborne transmission, experts warn
3 years, 11 months ago

Coronavirus spread at Brisbane's Hotel Grand Chancellor 'most likely' from airborne transmission, experts warn

ABC  

A dozen doctors have written to the Queensland Government warning that airborne disease specialists need to be employed to investigate whether there was any airborne transmission of the UK strain of coronavirus at Brisbane's Hotel Grand Chancellor. "There's an ongoing concern amongst a lot of health professionals that the Government isn't acting on the possibility of aerosol transmission of COVID-19," …

Masks not enough to stop Covid-19’s spread without social distancing: Study
4 years ago

Masks not enough to stop Covid-19’s spread without social distancing: Study

Hindustan Times  

Simply wearing a mask may not be enough to prevent the spread of COVID-19 without social distancing, suggest the findings of a new study. In Physics of Fluids by AIP Publishing, researchers tested how five different types of mask materials impacted the spread of droplets that carry the coronavirus when we cough or sneeze. “Without a face mask, it is …

Researchers develop method to measure coronavirus aerosol spread risk using hand-held device: Study
4 years ago

Researchers develop method to measure coronavirus aerosol spread risk using hand-held device: Study

India Today  

In an advance that may help determine the impacts of Covid-19 risk-reducing measures, scientists have developed a way to measure aerosol concentrations and persistence in public spaces, a study has found. In a study published in the journal Physics of Fluids, the researchers developed a method to measure aerosol concentrations in public spaces using commercial hand-held particle counters. According to …

Covid Traveling: Mask to Sanitiser, How to Commute Safely with Co-passengers during Pandemic
4 years ago

Covid Traveling: Mask to Sanitiser, How to Commute Safely with Co-passengers during Pandemic

News 18  

Commuting is crawling its way back to normalcy after the intensive lockdown in India. Q: Is wearing rubber gloves while out in the public effective in preventing the new coronavirus infection?👉🏽https://t.co/94zZioMvuA… #KnowtheFacts #COVID19 pic.twitter.com/ifrQ8w4jE5 — World Health Organization March 12, 2020 Sanitise The driver and the passengers must keep a bottle of sprayable sanitisers to disinfect the air inside the …

Design of Face Masks Crucial in Breaking the Chain of Coronavirus. Here's Why
4 years, 1 month ago

Design of Face Masks Crucial in Breaking the Chain of Coronavirus. Here's Why

News 18  

Researchers, including one from Indian-origin, stressed that materials, design and length of face masks are important to help slow the spread of Covid-19. “The results suggest that the consistent use of efficient face masks, such as surgical masks, could lead to the eradication of the pandemic if at least 70 per cent of the residents use such masks in public …

Design of masks important to slow Covid spread: Study
4 years, 1 month ago

Design of masks important to slow Covid spread: Study

India TV News  

Researchers, including one from Indian-origin, stressed that materials, design and length of face masks are important to help slow the spread of Covid-19. "The results suggest that the consistent use of efficient face masks, such as surgical masks, could lead to the eradication of the pandemic if at least 70 per cent of the residents use such masks in public …

The Coronavirus Is Airborne Indoors. But We’re Still Scrubbing Surfaces.
4 years, 1 month ago

The Coronavirus Is Airborne Indoors. But We’re Still Scrubbing Surfaces.

News 18  

At Hong Kong’s deserted airport, cleaning crews constantly spray baggage trolleys, elevator buttons and check-in counters with antimicrobial solutions. But scrubbing surfaces does little to mitigate the virus threat indoors, experts say, and health officials are being urged to focus instead on improving ventilation and filtration of indoor air. But scientific evidence was growing that the virus could stay aloft …

Anti-COVID Nasal Spray Developed at University of Birmingham Ready for Use in Humans
4 years, 1 month ago

Anti-COVID Nasal Spray Developed at University of Birmingham Ready for Use in Humans

News 18  

A nasal spray that can provide effective protection against the COVID-19 virus has been developed by researchers at the University of Birmingham, using materials already cleared for use in humans, the varsity said on Thursday. A team in the University’s Healthcare Technologies Institute formulated the spray using compounds already widely approved by regulatory bodies in the UK, Europe and the …

Covid-19 Risk in Airplanes, Restaurants, Grocery Stores Cannot Be Easily Compared: Scientists
4 years, 1 month ago

Covid-19 Risk in Airplanes, Restaurants, Grocery Stores Cannot Be Easily Compared: Scientists

News 18  

While a recent study has claimed that dining out, and grocery shopping could be more dangerous than air travel during the COVID-19 pandemic, partly due to special ventilation systems in airplanes, some scientists say such a comparison cannot be made without knowing if mask-wearing and social distancing norms are properly followed in each of these scenarios. In the research, funded …

Modern aircraft ventilation systems aren’t spreading viruses, DoD study suggests
4 years, 2 months ago

Modern aircraft ventilation systems aren’t spreading viruses, DoD study suggests

CNN  

CNN — A new study released Thursday suggests that people don’t need to worry about circulating air spreading coronavirus on airplanes. The US Department of Defense study supports earlier research showing the ventilation systems on aircraft filter the air efficiently and take out particles that could transmit viruses. The US Transportation Command, The Defense Advanced Research Project Agency and the …

Contracting Coronavirus Outdoors is Rare But That Shouldn't Stop You From Wearing a Mask
4 years, 2 months ago

Contracting Coronavirus Outdoors is Rare But That Shouldn't Stop You From Wearing a Mask

News 18  

Almost all documented coronavirus transmissions have occurred indoors, but experts say that wearing a mask outside is justified because there is still a risk of infection. “There were virtually no cases that we could identify that took place in sort of everyday life outdoors,” study author Mike Weed, a professor and researcher at Canterbury Christ Church University, told AFP. The …

COVID-19: Homemade masks release fibres into air, important to wash them, say scientists
4 years, 2 months ago

COVID-19: Homemade masks release fibres into air, important to wash them, say scientists

India TV News  

While surgical and N95 masks cut down the amount of aerosolized particles emitted during breathing, talking and coughing, scientists say in the case of homemade cloth face coverings, the fabric which traps the droplets may release a large amount of fibres into the air, underscoring the importance of washing them. They set up experiments to measure the flow of particles …

How Effective Are Homemade Fabric Masks Against the Spread of Covid-19?
4 years, 3 months ago

How Effective Are Homemade Fabric Masks Against the Spread of Covid-19?

News 18  

To reduce the transmission of COVID-19, precautionary measures like washing hands with soap and water, using sanitisers, maintaining physical distance and wearing a mask are extremely necessary. Determining the effectiveness of homemade masks Aerosols are tiny particles that are less than 5 micrometres in size and can be as small as 100 nanometres, whereas the larger droplets are around one …

CDC acknowledges risk of coronavirus aerosols in new guidelines, then reverses course
4 years, 3 months ago

CDC acknowledges risk of coronavirus aerosols in new guidelines, then reverses course

LA Times  

New federal guidelines that acknowledged the role of aerosols in the spread of COVID-19 were removed Monday from the website of the Centers for Disease Control and Prevention, which said they had been posted by mistake. Read the CDC’s draft guidance on the role of coronavirus aerosols in the spread of COVID-19 These are the guidelines about COVID-19 spread that …

Speak Softly and Scatter Fewer Coronavirus Particles, Say Researchers
4 years, 3 months ago

Speak Softly and Scatter Fewer Coronavirus Particles, Say Researchers

News 18  

More quiet zones in high-risk indoor spaces, such as hospitals and restaurants, could help to cut coronavirus contagion risks, researchers have said, after a study showed that lowering speaking volume can reduce the spread of the disease. “The results suggest that public health authorities should consider implementing ‘quiet zones’ in high-risk indoor environments, such as hospital waiting rooms or dining …

Woman may have caught coronavirus in airplane toilet, researchers say
4 years, 3 months ago

Woman may have caught coronavirus in airplane toilet, researchers say

CNN  

CNN — Researchers say they have evidence that a woman caught coronavirus on a flight – perhaps in the jet’s restroom. The 28-year-old woman was among about 300 South Koreans evacuated from Italy at the height of the coronavirus pandemic in Milan last March, the researchers wrote in the US Centers for Disease Control and Prevention’s journal Emerging Infectious Diseases. …

Researchers Conduct a 'Reassuring' Study on Coronavirus Transmission Risks Involved on Planes
4 years, 4 months ago

Researchers Conduct a 'Reassuring' Study on Coronavirus Transmission Risks Involved on Planes

News 18  

Wearing masks to prevent the spread of the coronavirus was not widespread in March, when a group of German tourists took a long flight home from Israel -- but researchers were surprised to find only two passengers outside the group had been infected. In a short study published Tuesday in the US medical journal JAMA Network Open, virologists at a …

What Should We Still Be Cleaning And Disinfecting To Prevent COVID-19?
4 years, 4 months ago

What Should We Still Be Cleaning And Disinfecting To Prevent COVID-19?

Huff Post  

LOADING ERROR LOADING The sales of disinfecting sprays and wipes skyrocketed in recent months as the public scrambled to more frequently disinfect commonly touched surfaces and items that could spread the coronavirus. “Relative to other things that one might want to do, such as wearing a mask, avoiding large gatherings and maintaining distance from other people, the importance of disinfecting …

How diseases spread when we talk and sing
4 years, 4 months ago

How diseases spread when we talk and sing

BBC  

How diseases spread when we talk and sing Bayerischer Rundfunk Kerstin Rosenfeldt inhaled a lungful of water vapour before singing to demonstrate how far respiratory microdroplets can travel Tiny droplets of liquid – aerosols – are emitted from our mouths when we talk, shout and sing, carrying viruses and bacteria with them. “So we did another experiment with two singers …

The Hindu Explains | Is airborne transmission of COVID-19 a risk?
4 years, 5 months ago

The Hindu Explains | Is airborne transmission of COVID-19 a risk?

The Hindu  

The story so far: On Monday, July 6, 239 scientists from 32 countries put their signatures on an open letter that said COVID-19 is also transmitted via aerosols. There is significant potential for inhalation exposure to viruses in microscopic respiratory droplets at short to medium distances, and we are advocating for the use of preventive measures to mitigate this route …

Aerosols are a Bigger Coronavirus Threat than WHO Guidelines Suggest – Here's What You Need to Know
4 years, 5 months ago

Aerosols are a Bigger Coronavirus Threat than WHO Guidelines Suggest – Here's What You Need to Know

News 18  

When someone coughs, talks or even breathes, they send tiny respiratory droplets into the surrounding air. The WHO instead suggested that the coronavirus was primarily transmitted by coughing or sneezing large droplets into someone’s face, rather than being a longer-term threat that can float in the air. When humans breathe, talk, sing, cough or sneeze, the emitted respiratory droplets mix …

Inhaling aerosols containing virus can cause COVID-19. WHO issues airborne transmission guidelines
4 years, 5 months ago

Inhaling aerosols containing virus can cause COVID-19. WHO issues airborne transmission guidelines

India TV News  

The World Health Organization issued fresh guidelines on the transmission of the novel coronavirus that acknowledge some reports of airborne transmission of the virus that causes COVID-19. Airborne transmission of COVID-19: This development comes days after over 200 scientists wrote letter urging the global body to update its guidelines on how the respiratory disease spreads to include aerosol transmission. WHO …

What do you do when you need to use a public bathroom during the Coronavirus pandemic?
4 years, 5 months ago

What do you do when you need to use a public bathroom during the Coronavirus pandemic?

Firstpost  

Shared bathrooms can increase the spread of gastrointestinal infections, we don’t know how bathrooms play a role in the transmission COVID-19. It can feel as if you’re running an infectious gauntlet when using a public bathroom, especially following last week’s news of toilet plume, that cloud of aerosol droplets that can rise nearly 3 feet and linger long enough to …

Scientists urge WHO to acknowledge virus can spread in air
4 years, 5 months ago

Scientists urge WHO to acknowledge virus can spread in air

Associated Press  

LONDON — More than 200 scientists have called for the World Health Organization and others to acknowledge that the coronavirus can spread in the air — a change that could alter some of the current measures being taken to stop the pandemic. In a letter published this week in the journal Clinical Infectious Diseases, two scientists from Australia and the …

Scientists Plan To Urge WHO To Take Airborne Spread Of Coronavirus More Seriously
4 years, 5 months ago

Scientists Plan To Urge WHO To Take Airborne Spread Of Coronavirus More Seriously

Huff Post  

LOADING ERROR LOADING A group of 239 scientists plans to urge the World Health Organization to more seriously consider the threat that the novel coronavirus may be spread by microscopic particles in the air. The New York Times first reported Saturday that an international coalition of researchers will publish an open letter asking WHO to address airborne transmission of the …

239 scientists press WHO on ‘airborne’ coronavirus spread
4 years, 5 months ago

239 scientists press WHO on ‘airborne’ coronavirus spread

Al Jazeera  

WHO has long maintained COVID-19 is spread via larger respiratory droplets and dismissed possibility of aerosol route. The authors cited previous studies suggesting germs closely related to COVID-19 were spread via airborne transmission, and “there is every reason to expect” coronavirus behaves similarly. “People may think they are fully protected by adhering to the current recommendations, but in fact additional …

Scientists say WHO ignores the risk that coronavirus floats in air as aerosol
4 years, 5 months ago

Scientists say WHO ignores the risk that coronavirus floats in air as aerosol

LA Times  

Six months into a pandemic that has killed over half a million people, more than 200 scientists from around the world are challenging the official view of how the coronavirus spreads. In interviews, experts said that aerosol transmission appears to be the only way to explain several “super-spreading” events, including the infection of diners at a restaurant in China who …

Covid-19: Filtering capacity of face masks ‘adversely affected’ by repeated coughing
4 years, 6 months ago

Covid-19: Filtering capacity of face masks ‘adversely affected’ by repeated coughing

Hindustan Times  

While facial masks reduce the spread of COVID-19, their filtering efficiency is adversely affected by repeated coughing, according to a new study which recommends complete personal protective equipment for healthcare workers including helmets with built-in air filters, and face shields. Scientists, including Talib Dbouk and Dimitris Drikakis from the University of Nicosia in Cyprus, used computer models to map out …

COVID-19 can pass between people up to THREE FEET even with a mask
4 years, 6 months ago

COVID-19 can pass between people up to THREE FEET even with a mask

Daily Mail  

Coronavirus is able to pass between two people standing up to three feet apart even if one of them is wearing a surgical grade face mask, a new study warns. Researchers from the University of Nicosia in Cyprus also found that masks became even less efficient when people repeatedly cough into them. Scientists say the findings are 'alarming' - and …

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