Aerosols: Key to control the coronavirus spread? | COVID-19 Special

Aerosols are tiny particles that can carry the coronavirus. They float on air currents and it can take them hours to settle.
The mouth of a coronavirus carrier, be it by coughing, exhaling, speaking or singing sends forth a shower of larger droplets and tiny aerosols.
To be able to imagine aerosols, experts say to think of cigarette smoke, spreading around a person like a cloud, the closer the smoker, the denser the cloud. So how can you protect yourself?

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[dwnews]

What would you like to know from our science correspondent Derrick Williams? #askDerrick

[mariclemmalazarte]

I hope that someone can study the aerosols generated in the dental office

[pulserrrg]

Can no one say AIRBORNE lol. We knew this since January lol several studies confirm. N95 indoors!

[randomstuffswithrrd]

I read about this already a month ago in Japanese news media NHK World.

[ReviewBoard-uynv]

Dr. Schaffner, though a leading researcher with infectious diseases, is not the right person to ask about ventilation. 1. There should be an interview with an engineer about how ventilation actually works (some air conditioning and ventilations systems recycle old air at higher degrees and the redistribution of this air to other neighboring rooms have potential dangers). 2. Prof Schaffner is NOT an expert on bio-aerosol transmission, just on infectious diseases. His colleague at the University of Maryland, Dr. Donald Milton would contradict him on saying 90% of cases are solved by just the 2 Meter rule in enclosed spaces. He has spent 25 years researching the transmission of bio-aerosols, which is more reliable than a guess by Dr. Schaffner, though educated.

[SirPhillyLeong]

Can you do a report on why Western media, scientist and doctors ignored the advice of Asian doctors on masks and stopping transmission?

[xavierlumley]

Good image. Smoke from smoker. As a Canadian in a cold climate my image is your breath in winter. Also, in both cases, your breath is warmer than the air and rises, thus lingering longer.

[ngdavid]

Old news! The Chinese specialists were talking about this 4 months ago.

[josephinewinter]

so why is 'jobs' 'work' always 'offices'? You know most people work in shops, factories, etc?

[codependent]

The first part of the video says that aerosols stay in the air for hours like cigarette smoke, eventually reaching the whole room, then the guest says 6 feet apart is enough to avoid 95% of cases.

[vladimirseven]

US keeps reinventing the wheels, this time with air conditioning. Like "Diamond Princess" was not enough.

[drewetpa]

There have been modelling studies recently which claim a 'k' value of 0.1. This is complicated maths but in summary they are saying that 10% of people account for 80% of transmission. Also when you look at super spreader events it seems to implicate that a small minority of people can shed very large amounts of virus either in either a presymptomatic or asymptomatic fashion. There have been several documented cases in meat packing plants, zumba class, choir practice, church, night clubs. Mostly places where people are in an enclosed space and forecefully expelling air, whether it be through physical exertion, singing or talking very loudly. I doubt it is on the same scale as for measles but I still would not feel comfortable going to a small gym class or a pub unless it was obviously ventilated. I mean windy. I think care homes could be ventilated more as well. They tend to congregate together for long periods of time in communal areas so I'm guessing transmission is more through close contact in these environments.

[DogeHandle]

Still learning more about coronavirus to this day is mind blowing

[islandbirdw]

Kudos to this channel for a balanced and simple approach in involving great expert guests. 🙏

[Swenthorian]

10:57 Oh come on! They could have just Googled that.

[sandracoffie]

The information is very good, thank you

[cozmorobotshow]

I looked up aerosols because I was wondering what these tiny particles are in the air. You can’t see them in normal light, but you see them in a beam out of a high powered flash light

[reza_dc]

What about in the outside environment ; are the particles able to get into your system as in would inside a retail store?
Say if your on a path with an occasional runner passing by you at 6 ft, is there a chance you can get the particles into your system?

[ЭндокринологЭлбекМаматкулов]

DW thanks so much. You are great team. Hello from Uzbekistan.

[Lisa-xpxl]

And not forgetting onboard cruise ships. The particles can travel up to 12 feet.