How Contagious Is A Single Sneeze?
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- Опубликовано: 1 ноя 2018
- How far can your germs travel in sneezes? Turns out, it’s not just about the biggest droplets, but also the smaller ones that stay in the air. The cloud of exhaled air that comes out of your mouth when you sneeze can potentially travel farther and wider than previously expected.
Read more from the Bourouiba Research Group here: lbourouiba.mit.edu/
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#Sneezes #Flu #ScienceInsider
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Following is a transcript of the video:
Achoo!
Are you sick? Don't you dare sneeze on me!
Do you know how far your germs can travel?
Normally, you hold about half a liter of fluid in your lungs. So when you sneeze, you’re able to spray as much as a water bottle’s worth of mucus into the air around you.
It shoots out of your mouth in the form of moist, germ-infested sheets, traveling at up to to 35 meters per second. That’s fast enough to give you a speeding ticket on a highway. Once that sheet hits the air, it expands, breaking up into snotty strings, then a series of different-sized droplets all trapped in a turbulent gas cloud.
One brave group at MIT discovered that the biggest droplets can travel up to 2 meters- about the distance between your desk and two desks down.
But most other droplets? Those travel much farther- up to 8 meters. That’s about 5 desk lengths!
Not only that: The germ-infested gas cloud is less dense than the air around it. So, it rises upwards, right to where ventilation systems and other people’s unsuspecting noses and mouths await. And even though these are relatively smaller droplets, they’re probably still teeming with harmful pathogens, like the flu virus. Even worse - depending on ventilation - they can spread through a room in just a few seconds, and remain suspended for up to 10 minutes!
Now, if you happen to notice someone around you sneeze or cough, you can hold your breath as you move out of range. But during flu season, that might not be enough, because there are danger zones everywhere- specifically on surfaces like desks, door knobs, and especially steel handrails.
Turns out, the flu virus has been found to survive for 24 hours on a steel surface, and if you touch that surface and don’t wash your hands before eating, you may have just gotten infected.
So, let’s say you show up to work sick with the flu one day, and you start to sneeze. Now, according to one study, you’ll probably infect 1 to 2 other people. You’re clearly showing symptoms of the flu. However, it takes a few days for symptoms to show up in the other people you infect. So, those poor souls unknowingly also come to work sick over the next few days and potentially infect 1 or 2 more people. In an office of 100 desks, this could mean 10 or 15 sick people by the end of two weeks! That’s over 10% of the office.
And all of it started with just one sick person: You. All thanks to the germ-laden cloud you so generously shared.
So, next time you’re not feeling great, and sneezing up a storm, think about your poor coworkers and take a sick day for yourself. And them.
How Contagious Is A Single Sneeze? 
Наука
This is why I hate people who don’t sneeze or cough in their elbow
@@colonelcat8639
i feel sorry for you.
ColonelCat You know what’s worse? All my family members refuse to cough in their elbow. I get sick from them every time. My dad also never washes his hands...
Digital Cyclone well, 1 week of cold symptoms, 1 day of fever symptoms, then 3 more weeks of coughing-up phlegm.
There's a coworker that I don't speak to. He never covers his mouth during a sneeze or cough. To make matters worse, he spits in the garbage can. Not only is he spreading his respiratory droplets, he's a stubborn know it all and nasty!
@@melanier7309 Sounds horrible.
I suddenly picture a war zone but instead of bullets it's just a bunch of people sneezing
Lol
kremit the frog lol i saw u in the infographics show.
Time to write a novel in which sneezing is the primary weapon used in war.
Achoo pew pew pew pew
lol
My sneeze doesn’t go further than my elbow: because im cultured
Anson Hu, that does help a lot but there are still nano particles being spread because your elbow does not fully cover your mouth as you sneeze. At least you have enough respect to cover your mouth because it is so disgusting when you see someone just sneeze with their mouth wide open!! I do my best to pull the collar of my shirt over my mouth if possible. If anyone gets infected it would be me!! Lol
Considering you're a live creature, I have a feeling that the germs will just fester and spread on your body/clothes anyway, and you're likely to spread it some other way after that. At work you're constantly touching and brushing again other things. Better off covering your entire mouth with a napkin or staying home. The likelihood of catching all sneezes whilst sick is pretty low.
And then there are people who sneeze into their hand instead of their elbow.
>_>
@MintyGacha Oof
I told my students to sneeze inside their shirts. It's their goo from their body, so it should stay on their body. And their clothes get washed so where's the hard part?
0:28 Well you can say that my nose was running...too fast
The door is this wa--
Wait that was actually pretty good.
Coronavirus: You’ve underestimated my power
The sneeze is the new coronavirus
Coronavirus is the new sneeze
This video should be mandatory to watch in all school systems and work place! THANK YOU.
Ok Karen
Mandatory lol ha ha
considering sending this to my mom because she doesn’t cover her mouth whenever she sneezes 🤢
My sister also doesn't.
This video is going to traumatize a lot of people 🕷
Sure, its as dangerous as ebola
Why do I watch these types of videos?
Why do I see you every where I go?
It did
Lol I thought the spiders are real and i was *FREAKING OUT*
Can my sneeze reach the moon?
yes, it can reach andromeda as well
@@WindowsSaturn ;-; well then
Found out that's because you can sneeze in 0G XD
CoolingTool it can travel to 18 light years
It can reach the edge of the universe
now im never gonna breath in flu season.
What r u? A dolphin? Bring a gas mask.
Good luck on that task
@@aircraft2 good idea
@@aircraft2 not a dolphin but those germs pisses me off 😆
I always take a full tank of oxygen to class.
This video is just another reminder to COVER YOUR GODDAMN SNEEZES
Exotic_ Dummy thank u 🤦♂️
So my sneezes can reach outer space?
If U sneez on an astronaute, probaby.
Oh my god, how do people think such a thing is close to possible. Its like saying my fart causes more global warming than China
Yes. Yes it can. 😂
@@theluluexpress8528 Work on your diet - just a suggestion.
i gess
Me: *WRITE THAT DOWN, WRITE THAT DOWN*
2020: don't give me anymore ideas.
This video should show up much more on COVID-19 Pandemic
While it might be fine to say "don't go to work" but how many times do employers say to come in as they need you and surely your not that sick. The pressure to still go to work is high coupled with the number of people that feel 'less' if they let being sick stop them from working don't help the spread of infections.
This should be shown at every job orientation
Who else is watching this during the coronavirus pandemic?
I am
I
I,am
Meee
Not me
I hold my breath when people sneeze but try to be slick to not offend them.
or you know, you can just cover your mouth.
If you sneeze on your hands, and touch someone or touch food, that person or your food could possibly be infected.
Use a tissue then?
@@solareclair357 wait how do you sneeze on your elbow? (I really dont know)
@@kimdokja320 you don't sneeze on your elbow. You sneeze on the part between your arm and your muscle which is behind the elbow.
Then wash your hands!
I wish my sneeze was as cute.
Can i show this video as an excuse?
Probably
My school would force me to come to school, even if I got a cold, because you can just sneeze on your arms.
...and stay sick for much longer
i just pretend i'm not sick and then it is fine actually i don't think i have ever been sick.
The other day a person sneezed in front of me and snot came out, and then it drilled to the floor. I was around food, so now every time I eat I get scared, and I make sure that I sneeze and cough into my elbow.
Thank you for making my germaphobia worse.
And this guys, is why taking time off work is important when sick
This is what happens in class sometimes!
Only one sick person infects the others and gets cured leaving the whole class sick
frr
You probably made some people tramatized.
I used to work at a hospital where they thaught us to sneeze into our elbows
Simple solution : Cover your mouth whenever you sneeze 🤧💦👍
Me at school during flu season 1:41
animations and story line are hilarious!! 😂😂
It would have been great to include how to prevent spreading those germ ridden sneezes from reaching his neighboring desks.... BY WEARING A MASK!!!
I literally sneezed WHILE I was clicking this😂
Good.
A water bottle's worth of mucus EACH SNEEZE?!?! Yeah I'm not buying that
Me neither
1:31 that's what i do everytime people that is near to me sneezes😂
What if we sneeze by covering mouth with handkerchief?
Then the handkerchief gets infected and everybody else is safe
stop abusing handkerchiefs
jk
That's sexual harassment!!.. No, it's rapee!! HELP IT'S A RAPEE, HELP!! THIS GUY IS A RAPIST!!!1!!
@@emptytoiletpaperroll9112 huh? R u crazy!!
@@AbdullahHayatKhan It's the favorite line of the feminists
Legend says that the guy still sneezes
I know that when a teacher I had in primary school sneezed in the classroom, I could SMELL it from all across the room, and it happened most of the time he sneezed. It always that SAME smell. So like, yeah we were basically inhaling those germs
Wolf Scent ew
@@Swess2908 smells weird! sickly sweet and musky?
Wolf Scent musty?
@@Swess2908 that too!
gross 🤢
0:55 dang
Unless I’m puking up blood my mom will make me go to school
Mood big ass mood
Next video:
*_How far can a fart travel_*
GETTING EXCUSE AT WORK FOR SNEEZING
“Did you find someone to cover your shift?”
There is no way that you are able to spray a water bottle of mucus when you sneeze. It has to be in the low single mililiter digits, like 2-3ml per sneeze. Not half a liter!!
Exactly.
The sneeze travelled so far it made me sneeze watching this video
People need to practise common sense when they are sick. I used to have an ex colleague who was sick but she refused to take medical leave and she spread the virus to me and a few other colleagues which made me quite annoyed 🙄🙄😑😑
Awesome video! Visiting here from 2021!!
Who else is here after Coronavirus?
Now I know how to stop my friends from sneezing in front of me.
Dads: am I a joke to you?
1:36 objective:
SURVIVE
Also higher distance=lower concentration of germs, so, whats the point of this?
What about covering your mouth when you sneeze?
Just cover your mouth during sneezing, dammit! :D
...wait until you take microbiology.
Since no one will read this I like to tell people to say ahhh and then quickly blast a sneeze directly into their mouth
Ha
ewwwwwwww
hahahah
Wow this comment aged well
So basically I’m going to work now when I got the flu
Because I don’t like my coworkers 😂
Watching this while having a flu.
The 35 m/s (80 mph for My Fellow Muricans) is deceptive. The viscosity of air becomes a significant factor in slowing down the tiny droplets we sneeze out. Even a small burst of air will slow down quickly. What DOES travel further, is when the burst of air collapses into a toroid vortex, this little donut miasma can travel far (albeit much much slower).
LOL, I sneeze a minute ago before watching this video! XDDDDDDD
I'm considering displaying this in every screen in the world
The only person I’m infecting is me, into my elbow. I do it without even thinking about it now!
Madagascar has closed it's port
Gesundheit! Bless you...
Blessh you
I sneeze even when I am not sick. Kind of surprising.
Allergic response to air pollutant (dust-- pollen--mold--chemical---++++ )
Because of the allgery's around your area thats why u sneeze when ur not sick
@@NotYourNormalKidYT8 Well I knew that after that comment from 3 years ago approx. But thanks anyways, even if it’s after I knew that. It’s fine though.
Well if i was going to sneeze then cover my mouth when it's going out then wash my hands will it still spread?
*Intercontinental balistic sneeze*
i remember having a cold/flu at school for a week and a few days latery classmate all had a cold
I hate when people come to school sick. I caught strep throat from someone at school and had to go to the hospital
Bosses watching this like, "naw, dont take a sick day for nobody."
Moist moist moist moist moist moist moist moist moist moist moist moist moist moist moist moist moist moist
I fuckin hate it that ppl dont understand how disgusting and potentially harmful it is when u dont close ur mouth when u sneeze
Who the hell even sneezes without covering their face ..
20:38 thanks for saying im so generous!! 😋
Aw man I sneeze everyday when my nose got wet
So let this be a lesson, cover your sneezes and stay home if you have a fever!
Sibling: *sneezes*
Me: *dives into a blanket*
This is the best video to explain why wearing a face mask is so important during coronavirus
Don't work duhhh
I like sneeze to
*you*
ok
Boooi if u dont back up
Omg I’m never eating in a public area again
I caused a mini-epidemic at the elementary school i was at.
One of the stupid cruise ships in Alaska had an infected bunch of foreign tourists and my class, of course, got to tour this specific cruise ship, the tourists were horribly mannered, they stole food from tables at local vendors and one even screamed and got me kicked out of the restaurant my class went to on the ship because i wouldn't give her child my Scorch plushie (i have ADHD and Autism and plushies help, idk why, Scorch is a TY beanie baby) and of course the snotty brat comes up and _licks_ my hand and starts yanking on it saying "I WANT IT I WANT IT" and of course *I* was kicked out for being "rude" and "causing a disruption". The kid had the Norovirus and had probably barfed and not washed her hands after trying to yank Scorch's head off, and a week afterwards, i got sick and couldn't even stand. My sister got a stick up her behind and turned the heater off after i had taken a shower, so i also developed Pneumonia. And the kid was probably carrying roundworm as well because lo and behold, i got that as well!
Edit: I forgot to mention that is was the middle of winter and about 10° F *with the window open* and my hair is really thick so it holds water. I can literally wring it out like a rag 10 minutes after i finish washing it.
I don't know if this is a more effective way of keeping my sneeze from spreading to other things or people, but I cup my mouth with both my hands and sneeze. I close both my hands together and walk to a sink, and then I use anything but my hands to turn the handle to rinse my hands. Is this smart or am I just an idiot? This also isn't reliable because haha, there won't be a sink everywhere.
Interesting video.
In class when someone is sneezing in FRONT OF ME ugh!
I said "get away from me!!! Ughh" or even "what the heck *the name of the Classmate sneeze on me*"
And my classmate said
"Your so arte"
Ugh I hate my classmates I actually wishing to move in other school can't wait
art*
Knew someone from school who would run to his locker to sneeze on his mirror in his locker or go run up to his crush if she was around and sneeze on her. I love public high school.
And this reminds me to get my flu jab...🙄
Bless you.
Today in the news, *HURRICANE SNOT*
This is why you put your hand in your mouth when sneezing
Your immune system is laughing at you freaking out
*Coronavirus anyone?.....*
why did i watch this now im paranoid
How do you prevent it tho? Any tips?
1:39 when people so hard to prank you
Well what will happen if I cover my mouth while sneezing?
I think this is like TED-Ed.
"Take a sick day" lol what a joke really like many of us are able to do that without repercussions.
Thats why my boss must give me a free day
2:04 GOD THAT WAS AN INTENSE SNEEZE