CDC says coronavirus can spread indoors in updated guidance
4 years, 3 months ago

CDC says coronavirus can spread indoors in updated guidance

Associated Press  

NEW YORK — The top U.S. public health agency said Monday that the coronavirus can sp However, several experts faulted the updated Centers for Disease Control and Prevention guidance. In interviews, CDC officials have also acknowledged growing evidence that the virus can sometimes spread on even smaller particles called aerosols that spread over a wider area. CDC officials called those ”limited, uncommon circumstances.” In those cases, spread occurred in poorly ventilated and enclosed spaces where people were doing activities that caused heavier breathing, like singing or exercise, CDC officials said. People can protect themselves by staying at least 6 feet away from others, wearing a mask, washing their hands, cleaning touched surfaces and staying home when sick Last month, the CDC ignited controversy among experts when it quietly posted an update that seemed to suggest the agency’s position had changed, and then within days took it down again.

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History of this topic

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 …

Coronavirus Today: To mask or not to mask
2 years, 10 months ago

Coronavirus Today: To mask or not to mask

LA Times  

I’m Karen Kaplan, and it’s Tuesday, March 1. Either way, Dr. Mark Ghaly, California’s health and human services secretary, wants you to know that the decision was “driven by the data and the science.” That includes coronavirus case numbers, which are now averaging about 33,000 cases per day. The new state rules come with an important caveat: Local health officials …

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: When is the infection risk high?
3 years, 1 month ago

COVID-19: When is the infection risk high?

The Hindu  

There are some COVID rules we have all learned by now — or so we think. Infection risk depends on a number of factors One main transmission pathway is the spread of coronavirus particles through aerosols and droplets. The Max Planck Institute for Chemistry has a calculator that lets you adjust a number of parameters to determine the COVID risk …

EXPLAINER: Why masks are again advised for everyone indoors
3 years, 5 months ago

EXPLAINER: Why masks are again advised for everyone indoors

Associated Press  

NEW YORK — Wait, we’re supposed to wear masks again? The change comes two months after the agency eased its mask advice, declaring that fully vaccinated people no longer had to cover up at indoor public places. CDC officials announced that people who are fully vaccinated should resume wearing masks indoors if they live in areas where the virus is …

Vaccinated should wear masks indoors in US COVID hotspots: CDC
3 years, 5 months ago

Vaccinated should wear masks indoors in US COVID hotspots: CDC

Al Jazeera  

US public health agency recommends mask-wearing in indoor public spaces in places where the coronavirus is surging. People in parts of the United States where COVID-19 infections are surging should wear masks indoors even if they are fully vaccinated against the coronavirus, the country’s public health agency has advised. “In areas with substantial and high transmission, CDC recommends fully vaccinated …

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, 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. …

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 …

6 feet or 10 metres: What experts say about safe distance to keep Covid at bay
3 years, 7 months ago

6 feet or 10 metres: What experts say about safe distance to keep Covid at bay

Hindustan Times  

The recent Covid-19 guideline issued by the principal scientific adviser to the government has said that aerosols from a Covid-19 infected person can travel in the air up to 10 metres, which is around 32 feet, while in its earlier guidelines, the health ministry has advised maintaining 'do gaj ki duri', which is around six feet. Dr Ved Chaturvedi of …

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 …

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 …

More relaxed CDC coronavirus guidelines could come soon, Fauci says
3 years, 8 months ago

More relaxed CDC coronavirus guidelines could come soon, Fauci says

CNN  

CNN — After loosening its Covid-19 prevention guidelines somewhat this week for people who are fully vaccinated, the US Centers for Disease Control and Prevention could soon go even further if new cases continue to decline, Dr. Anthony Fauci said. “What it doesn’t really underscore for Americans is what the CDC knows, which is that these vaccines induce immunity.” Fauci …

Six-foot social distancing rule misses bigger risks, MIT experts say
3 years, 8 months ago

Six-foot social distancing rule misses bigger risks, MIT experts say

CNN  

CNN — When it comes to being indoors, the six feet rule of social distancing misses the bigger point of how coronavirus spreads, according to two Massachusetts Institute of Technology experts. While staying six feet apart can help prevent the spread of large droplets of saliva or mucus that carry coronavirus and other germs, that distance does nothing to protect …

Risk of COVID-19 indoors is the same at 6 feet and 60 feet apart even when wearing a mask
3 years, 8 months ago

Risk of COVID-19 indoors is the same at 6 feet and 60 feet apart even when wearing a mask

Daily Mail  

Professors Martin Bazant and John Bush from the prestigious Massachusetts Institute of Technology say the 'six foot rule' that encourages people to socially distance in public has no solid basis in science. Bazant and Bush developed a model to calculate indoor exposure risk based on time spent inside, air filtration and circulation, immunizations, respiratory activity, variants and mask use. The …

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 …

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," …

Infected after 5 minutes, from 20 feet away: South Korea study shows coronavirus’ spread indoors
4 years, 1 month ago

Infected after 5 minutes, from 20 feet away: South Korea study shows coronavirus’ spread indoors

LA Times  

Dr. Lee Ju-hyung has largely avoided restaurants in recent months, but on the few occasions he’s dined out, he’s developed a strange, if sensible, habit: whipping out a small anemometer to check the airflow. In his work on Massachusetts’ contact tracing program, he said, business owners and school administrators have fixated on the “close contact” standard, thinking just 14 minutes …

Covid-19 Spread Easier in Indoors, Winter Perfect Set-up for Contagion: Dr Vivek Murthy
4 years, 1 month ago

Covid-19 Spread Easier in Indoors, Winter Perfect Set-up for Contagion: Dr Vivek Murthy

News 18  

It is easier for coronavirus to spread indoors than outdoors as people stay inside their homes during winter which is a perfect set-up for the contagion, according to Dr Vivek Murthy, the top Indian-American advisor to President-elect Joe Biden on COVID-19. The 43-year-old former US surgeon general, who co-chairs the COVID-19 advisory board of Biden, told Fox News on Sunday …

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 …

Does weather affect the spread of the coronavirus outside?
4 years, 2 months ago

Does weather affect the spread of the coronavirus outside?

Associated Press  

Does weather affect the spread of the coronavirus outside? Scientists say the real concern about cold weather is that lower temperatures are more likely to keep people indoors — potentially in more crowded spaces where the virus can sp Studies have shown that a significant percentage of spread happens within households when people are sharing common areas like kitchens and …

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 …

Stanford professor says smartphones don't spread COVID 19, virus can't survive 28-days on phone screen
4 years, 2 months ago

Stanford professor says smartphones don't spread COVID 19, virus can't survive 28-days on phone screen

India Today  

A Stanford professor has given clarity on an Australian study that suggests that coronavirus can survive on common surfaces, including glass layers on smartphone screens for up to 28 days. Dean Winslow, an infectious disease doctor and professor of medicine at the Stanford University Medical Center said the Australian study portrays what he calls a worst-case scenario. According to Winslow, …

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 …

Coronavirus May Spread More Via Respiratory Droplets in Winter, Say Scientists
4 years, 2 months ago

Coronavirus May Spread More Via Respiratory Droplets in Winter, Say Scientists

News 18  

While transmission of the novel coronavirus as small aerosol particles is more significant in summer, direct contact with respiratory droplets may be more pronounced in the winter months, according to a new research. ”We found that in most situations, respiratory droplets travel longer distances than the 6-foot social distance recommended by the CDC,” said Yanying Zhu, a co-author of 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 …

Catching coronavirus outside is rare but not impossible
4 years, 2 months ago

Catching coronavirus outside is rare but not impossible

Live Mint  

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. 'Dilution …

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 …

The CDC says the coronavirus can spread through tiny airborne particles after all
4 years, 3 months ago

The CDC says the coronavirus can spread through tiny airborne particles after all

LA Times  

The U.S. Centers for Disease Control and Prevention acknowledged Monday that the coronavirus can spread through microscopic respiratory particles known as aerosols that float in the air for minutes or even hours before being inhaled. On its website, the CDC said that even people who followed social distancing guidelines have been infected through this type of transmission — and added …

Can the coronavirus travel more than 6 feet in the air?
4 years, 3 months ago

Can the coronavirus travel more than 6 feet in the air?

Associated Press  

Can the coronavirus travel more than 6 feet in the air? People spray liquid droplets of various sizes when they cough, sneeze, talk, sing, shout and even just breathe. The advice about staying at least 6 feet apart is based on the idea that the larger particles drop to the ground before getting very far. For aerosols, “6 feet is …

New Study Shows You're More Likely to Contract Covid-19 Indoors. What Else, 2020?
4 years, 3 months ago

New Study Shows You're More Likely to Contract Covid-19 Indoors. What Else, 2020?

News 18  

New research adds to the growing body of evidence that airborne transmission of Covid-19 spreads more quickly in enclosed spaces. Researchers were able to link a community outbreak of Covid-19 in China to a source patient who likely spread the virus to fellow bus riders through the bus’s air conditioning system. “Our study provided epidemiologic evidence of transmission over long …

Experimental study finds how coronavirus can spread while speaking
4 years, 3 months ago

Experimental study finds how coronavirus can spread while speaking

The Hindu  

Now, there is one more study showing how important it is to wear a mask when speaking and improve ventilation to cut the risk of spreading novel coronavirus. They found that during certain sounds like consonant ‘P’, ‘B’, the vocal tract is blocked temporarily either with the lips or with the tongue tip or body, so that the pressure builds …

How do people get infected by coronavirus? Here’s what experts say
4 years, 3 months ago

How do people get infected by coronavirus? Here’s what experts say

Live Mint  

In most cases, it’s impossible to pinpoint how someone caught SARS-CoV-2, the coronavirus that causes Covid-19. Patients may harbor potentially infectious SARS-CoV-2 virus in their saliva, stool and urine as long as 15 days after falling ill, researchers in South Korea showed in a study of five patients in July. Exhaled breath may play an important role in the transmission, …

CDC changes, then retracts, web posting on how virus spreads
4 years, 3 months ago

CDC changes, then retracts, web posting on how virus spreads

Associated Press  

NEW YORK — The top U.S. public health agency stirred confusion by posting — and then taking down — an apparent change in its position on how easily the coronavirus can spread from person to person through the air. It was “an honest mistake” that happened when a draft update was posted before going through a full editing and approval …

CDC changes, then retracts, its take on coronavirus spread
4 years, 3 months ago

CDC changes, then retracts, its take on coronavirus spread

The Independent  

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Sign up to our free breaking news emails SIGN UP I would like to be emailed about offers, events and updates from The Independent. That’s one reason public health experts urge people to …

CDC says revised guidance on coronavirus spread posted in error, removes it
4 years, 3 months ago

CDC says revised guidance on coronavirus spread posted in error, removes it

The Hindu  

On September 21, three days after CDC revised its guidance to acknowledge the spread of the novel coronavirus through aerosols and clearly mentioning that inhalation of particles, such as those in aerosols, is the “main way” the virus spreads, the nodal agency withdrew all mention of small particles and aerosols from the guidance. Compared with the July 9 guideline on …

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 …

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