Covid is airborne — but preventing airborne spread is perfectly doable. Here’s how to do it
2 years, 11 months ago

Covid is airborne — but preventing airborne spread is perfectly doable. Here’s how to do it

The Independent  

Sign up to our free Living Well email for advice on living a happier, healthier and longer life Live your life healthier and happier with our free weekly Living Well newsletter Live your life healthier and happier with our free weekly Living Well newsletter SIGN UP I would like to be emailed about offers, events and updates from The Independent. Within this “near zone”, fresh air helps less, just as open windows don’t help much if a nearby smoker breathes smoke into your face. Many modern buildings have “mechanical” ventilation which delivers a reliable amount of fresh air, but it is difficult for customers or employees to know if good mechanical ventilation is in place — is the box on the wall really blowing fresh air in, or just blowing the same stale air around, allowing infectious aerosol to build up and spread? It’s likely to have more ventilation if it’s windy or colder outside, and a quick blast of fresh air for a few minutes every half hour helps keep infectious aerosol from building up. In the 21st century world of new pandemics, it’s time we tackled indoor air In the meantime, where the ventilation is inadequate, we can supplement the clean air by filtering out the respiratory aerosol particles using small portable HEPA filter units that just plug into the mains.

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History of this topic

‘Indoor ventilation’ can reduce Covid-19 transmission: Study
2 years, 1 month ago

‘Indoor ventilation’ can reduce Covid-19 transmission: Study

Live Mint  

A new study has revealed that effective indoor ventilation is required to prevent the spread of Covid-19 transmission. MIT researchers have recently discovered that indoor relative humidity may also affect the virus' ability to spread. The MIT research team reported that around 40% to 60% of indoor relative humidity is associated with relatively lower rates of Covid-19 infections and deaths, …

Fluctuating SpO2, Asthma, Lung Disorder: Pollution Threatens to Knock Wind out of Covid Victims
2 years, 2 months ago

Fluctuating SpO2, Asthma, Lung Disorder: Pollution Threatens to Knock Wind out of Covid Victims

News 18  

Don’t venture out, use air purifiers, work from home, or else go away from Delhi-NCR: this is the advice doctors are giving to those who have suffered a bout of moderate to severe Covid-19 disease in the last two years. From fluctuating oxygen saturation to complications in the lungs, uncontrollable bouts of cough, asthma attacks, and even chances of lung …

This DIY box helps clear indoor air of the coronavirus. Why aren’t more people using them?
2 years, 5 months ago

This DIY box helps clear indoor air of the coronavirus. Why aren’t more people using them?

LA Times  

The glowing box, pulsing with rainbowy light, looks as if it was dropped into this Studio City living room from a warehouse rave. It has been rewarding “to be able to feel like you’re being proactive and that you’re rolling up your sleeves against the virus — that you’re not just passive, but you’re actually able to trap it in …

Aerosol study shows how SARS-CoV-2 spreads
2 years, 6 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 is airborne, confirms study
2 years, 8 months ago

Coronavirus is airborne, confirms study

Deccan Chronicle  

HYDERABAD: Novel Coronavirus is airborne and you could contract it just by breathing infected air, even when you maintain social distancing, confirms a new study. They found that the virus could be frequently detected in air around Covid patients. We found that the positivity rate of finding the virus in air was 75 per cent when two or more Covid …

More evidence of airborne spread of COVID: study
2 years, 8 months ago

More evidence of airborne spread of COVID: study

The Hindu  

The SARS-CoV-2, which was earlier thought to spread through touching infected surfaces, has been found to be spreading airborne and more evidence is coming up in this regard, with epidemiologists also finding that countries that used masks were affected less severely by the pandemic. Scientists analysed the coronavirus’ genome content from air samples collected from different areas occupied by COVID …

Two years of COVID: The battle to accept airborne transmission
2 years, 9 months ago

Two years of COVID: The battle to accept airborne transmission

Al Jazeera  

In the early days of the pandemic, did health authorities get it wrong on airborne transmission? There has been this resistance from people in medical fields, agrees Prather, who says, “They’ve sort of dismissed our opinions.” One of the reasons for that has been the call from certain scientists in the medical field for randomised controlled trials, considered a gold …

How to fight COVID-19 with ventilation and air purifiers
2 years, 10 months ago

How to fight COVID-19 with ventilation and air purifiers

The Hindu  

COVID-19 is an airborne disease, and the latest Omicron variant of SARS-CoV-2 is the most transmissible thus far. Ventilation can be increased using box or pedestal fans that bring outside air in from one window or doorway, with indoor air being naturally pushed out of another open window. Buying air purifiers Air purifiers can remove airborne particles and thus limit …

SARS-CoV-2 RNA causing Covid-19 detected in tiny airborne particles inside and outside infected person's room: Study
2 years, 11 months ago

SARS-CoV-2 RNA causing Covid-19 detected in tiny airborne particles inside and outside infected person's room: Study

Hindustan Times  

A new study has detected tiny airborne particles containing RNA from the SARS-CoV-2 that causes Covid-19, both inside and outside of the rooms in which infected people were self-isolating at home. SARS-CoV-2 RNA causing Covid-19 detected in tiny airborne particles inside and outside infected person's room: Study The research has been published in the 'Annals of the American Thoracic Society …

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 …

COVID-19 is airborne and out in the community. Here's how good ventilation can make public spaces safer
3 years ago

COVID-19 is airborne and out in the community. Here's how good ventilation can make public spaces safer

ABC  

Masks are again required in many indoor spaces to slow the spread of COVID-19, but not all masks protect against airborne viruses and they are not required in all public places. Key points: People with a COVID-19 infection can exhale particles and droplets that contain the virus Mixing fresh air with the air inside a building helps lower the risk …

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 …

Air pollution may lead to increased risk of developing Covid-19: Study
3 years, 1 month ago

Air pollution may lead to increased risk of developing Covid-19: Study

Hindustan Times  

Long-term exposure to air pollution may lead to an increased risk of developing the coronavirus disease among people who have been infected with SARS-CoV-2, the virus which causes Covid-19, according to a recent study. Speaking on the study, Manolis Kogevinas, its lead author, said, “These results are in line with the association between air pollution and hospitalisation described for other …

Study shows Covid variants getting better at travelling through air
3 years, 3 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 …

Governments failing to heed 'paradigm change' call on ventilation to slow COVID-19 spread, experts say
3 years, 3 months ago

Governments failing to heed 'paradigm change' call on ventilation to slow COVID-19 spread, experts say

ABC  

As Australia prepares for a new year with open borders and a resulting jump in COVID-19 case numbers, leading scientists say there is an urgent need to better regulate indoor ventilation and air quality. Key points: Australia has no legal standards on indoor air quality Professor Lidia Morawska says lives could have been saved with better ventilation Experts are calling …

Covid: How to sanitise and stay safe while flying
3 years, 3 months ago

Covid: How to sanitise and stay safe while flying

The Independent  

Sign up to Simon Calder’s free travel email for expert advice and money-saving discounts Get Simon Calder’s Travel email Get Simon Calder’s Travel email SIGN UP I would like to be emailed about offers, events and updates from The Independent. The new peer-reviewed study published in September used data from nearly 10,000 air travellers on Delta’s Covid-tested flight corridors between …

Coronavirus more likely to spread indoors through maskless interaction: Study
3 years, 7 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, 7 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. …

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. …

Scientists are finding more proof for role aerosols in Covid spread
3 years, 8 months ago

Scientists are finding more proof for role aerosols in Covid spread

Dutch News  

Scientists at Amsterdam, Twente and Cambridge universities are finding more evidence about the role aerosols may play in the spread of coronavirus and are calling for better ventilation in homes, television show Nieuwsuur has reported. More analytical models are showing that aerosols play a role although there is no rock solid proof yet, Daniel Bonn told the programme. Apart from …

Scientists are finding more proof for role aerosols in Covid spread
3 years, 8 months ago

Scientists are finding more proof for role aerosols in Covid spread

Dutch News  

Scientists at Amsterdam, Twente and Cambridge universities are finding more evidence about the role aerosols may play in the spread of coronavirus and are calling for better ventilation in homes, television show Nieuwsuur has reported. More analytical models are showing that aerosols play a role although there is no rock solid proof yet, Daniel Bonn told the programme. Apart from …

Covid 'airborne': Use N95 or KN95 masks, keep alternating every 24 hours, says Infectious Diseases expert
3 years, 8 months ago

Covid 'airborne': Use N95 or KN95 masks, keep alternating every 24 hours, says Infectious Diseases expert

India Today  

One should try and use N95 or KN95 masks, Dr Faheem Younus said on Twitter in response to The Lancet study which asserted that Covid-19 is an airborne pathogen. Referring to the Lancet Covid-19 Commission's report, the chief of Infectious Diseases at the University of Maryland also said that 'airborne' does not mean the air is contaminated. Reacting to the …

Virus infections predominantly by air: Lancet
3 years, 8 months ago

Virus infections predominantly by air: Lancet

Deccan Chronicle  

Hyderabad: Making the worst fears about how Covid-19 spreads and how the disease-causing SARS-CoV-2 travels from one person to another, a study published by Lancet, the venerated medical journal, has said that the virus spreads “predominantly by the airborne route.” In their study, published by Lancet on April 15, researchers from the US, Canada and the United Kingdom, said there …

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 …

Despite a better understanding of airborne coronavirus transmission, health department advice online hasn't changed since March 2020
3 years, 10 months ago

Despite a better understanding of airborne coronavirus transmission, health department advice online hasn't changed since March 2020

ABC  

CoronaCheck is RMIT ABC Fact Check's weekly email newsletter dedicated to fighting the misinformation infodemic surrounding the coronavirus outbreak. In a media statement published on Thursday morning, Facebook's managing director for Australia and New Zealand, William Easton, said the Government's proposed media bargaining law, which would see tech companies pay Australian news organisations for their content, "fundamentally misunderstands the relationship …

New playbook for Covid-19 protection emerges after year of study, missteps
3 years, 11 months ago

New playbook for Covid-19 protection emerges after year of study, missteps

Live Mint  

Scientists are settling on a road map that can help critical sectors of the economy safely conduct business, from meatpacking plants to financial services, despite the pandemic’s continued spread. “We have to still deal with ‘the right now.’ We’ve zeroed in on this set of controls that we know work," said Joseph Allen, director of the Healthy Buildings Program at …

Scientists develop method to measure COVID-19 aerosol spread risk using hand-held device
4 years ago

Scientists develop method to measure COVID-19 aerosol spread risk using hand-held device

India TV News  

Scientists have developed a method to measure aerosol concentrations and persistence in public spaces using commercial hand-held particle counters, an advance that may help determine the impacts of COVID-19 risk-reducing measures, like ventilation improvements. According to the researchers, including those from the University of Amsterdam in the Netherlands, the key challenge with using hand-held particle counters is dealing with the …

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 …

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 …

Covid-19 pandemic: Ventilate, open windows to cut risk, advises UK government
4 years, 1 month ago

Covid-19 pandemic: Ventilate, open windows to cut risk, advises UK government

Hindustan Times  

The Boris Johnson government on Wednesday released a new film based on research that shows ventilation and letting in fresh air into indoor spaces can reduce risk of infection from the coronavirus by over 70%. The film produced with scientists at Leeds University illustrates how coronavirus lingers in the air in spaces with no fresh air, increasing the risk of …

It's time to rethink indoor airflow to reduce the spread of COVID-19, say experts
4 years, 1 month ago

It's time to rethink indoor airflow to reduce the spread of COVID-19, say experts

ABC  

Masks, social distancing and hand hygiene have become widely accepted as ways to reduce the spread of coronavirus but some scientists are saying the ventilation of our homes and workplaces could be another tool in our prevention armoury. Key points: In recent weeks the World Health Organization and the United States Centers for Disease Control have acknowledged airborne aerosols as …

Air pollution contributes to Covid-19 mortality, international studies show: ICMR
4 years, 2 months ago

Air pollution contributes to Covid-19 mortality, international studies show: ICMR

India Today  

The Indian Council of Medical Research on Tuesday accepted a correlation between air pollution and Covid-19 mortality. Addressing the media, ICMR Director-General Dr Balram Bhargav said that international studies have established that Covid-19 and air pollution can aggravate respiratory disorders and lead to an increase in mortality. “There have been studies from Europe and the US, where they have looked …

Effective Ventilation Key Factor to Stop COVID-19 Spread: Study
4 years, 2 months ago

Effective Ventilation Key Factor to Stop COVID-19 Spread: Study

The Quint  

"The virus is transmitted via saliva droplets with a size from 0.5 micrometres up to a few thousand micrometres produced by a person by talking, sneezing, coughing, or even just breathing," Kurnitski added. Tiny droplets below 5 micrometres do not settle on surfaces, they remain airborne and follow airflow streamlines for tens of metres. Large droplets above 100 micrometres in …

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 …

Air Purifiers May Help in Reducing Airborne COVID-19 Transmission
4 years, 3 months ago

Air Purifiers May Help in Reducing Airborne COVID-19 Transmission

News 18  

COVID-19 is suspected to spread through multiple methods: direct droplet transmission from the infected person, airborne transmission via virus‐containing aerosols and fomite transmission. To find a solution, scientists from the Institute for Atmospheric and Environmental Sciences, Goethe University, Germany conducted a series of experiments where they tested the efficiency of mobile air purifiers in reducing the airborne transmission risk of …

Covid-19 could spread by airborne transmission: Centers for Disease Control and Prevention
4 years, 3 months ago

Covid-19 could spread by airborne transmission: Centers for Disease Control and Prevention

Hindustan Times  

U.S. Centers for Disease Control and Prevention in an updated guidance on Monday said COVID-19 can spread through airborne transmission, a month after it took down a similar warning. Aerosols lingering in the air could be a major source of COVID-19 transmission, a group of U.S. scientists warned in an unrelated open letter published in medical journal Science on Monday. …

Covid-19 can spread through virus in air, confirms US CDC
4 years, 3 months ago

Covid-19 can spread through virus in air, confirms US CDC

India Today  

Covid-19 can spread through virus lingering in the air, sometimes for hours, the US Centers for Disease Control and Prevention has said as it acknowledged concerns voiced by public health experts about the airborne transmission of the virus. Read: Jamia Millia Islamia researchers develop saliva-based home testing kit CDC said under such circumstances, scientists believe the amount of infectious smaller …

COVID-19: How to make indoor spaces safer
4 years, 3 months ago

COVID-19: How to make indoor spaces safer

Al Jazeera  

From good ventilation to redesigning spaces, we outline ways to help reduce the risk of transmission in closed settings. HVAC systems In public spaces, ventilation through mechanical measures like heating, ventilation and air conditioning systems can be helpful in improving indoor air quality. “A table or pedestal fan is safe for air circulation among family members living together who are …

CDC Reverses Guidelines Stating The Coronavirus Is Airborne Virus [UPDATE]
4 years, 3 months ago

CDC Reverses Guidelines Stating The Coronavirus Is Airborne Virus [UPDATE]

Huff Post  

LOADING ERROR LOADING UPDATE: 12:40 p.m. — The Centers for Disease Control and Prevention has reversed an update made to its coronavirus guidance that stated COVID-19 is an airborne virus. “There is growing evidence that droplets and airborne particles can remain suspended in the air and be breathed in by others, and travel distances beyond 6 feet,” the CDC’s new …

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 …

CDC says coronavirus spreads mainly in the air, through respiratory aerosols and droplets
4 years, 3 months ago

CDC says coronavirus spreads mainly in the air, through respiratory aerosols and droplets

LA Times  

The coronavirus spreads most commonly in the air, through droplets or other tiny respiratory particles that apparently can remain suspended and inhaled, the Centers for Disease Control and Prevention says in new guidance. Science & Medicine UPDATE: CDC says new guidance on aerosols was posted by mistake The Centers for Disease Control and Prevention said new guidance that warned about …

Air pollution can intensify Covid-19
4 years, 4 months ago

Air pollution can intensify Covid-19

Hindustan Times  

As India faces a steep rise in Covid-19 cases, it is critical to employ all reasonable strategies to decrease transmission and to lower the number of severe infections which burden the health care system. Emerging research also suggests that air pollution may alter lung cells to increase the number of Sars-CoV-2 virus receptors India has some of the highest exposures …

Tiny coronavirus particles could travel a lot further than 1.5 metres in the air, study suggests
4 years, 4 months ago

Tiny coronavirus particles could travel a lot further than 1.5 metres in the air, study suggests

ABC  

The critical importance of social distancing due to the risk of tiny airborne particles of COVID-19 has been largely focused on scientific advice that airborne spray could travel up to 1.5 metres. Key points: ANU researchers say particles 50 times smaller than hair can travel several metres ANU researchers say particles 50 times smaller than hair can travel several metres …

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