Weekly Wellness: The Truth about Coughing & Sneezing

2 weeks 1 day 22 hours ago Monday, November 04 2019 Nov 4, 2019 Monday, November 04, 2019 1:01:00 PM CST November 04, 2019 in Weekly Wellness
By: Amanda Barnes, KOMU 8 Wellness Coach
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COLUMBIA- ‘Tis the season… for sneezing and coughing and illness (oh my!) It seems that everywhere we go we are around someone who is sniffing. At work, in a coffee shop, on an airplane. Enclosed spaces – eek! So, when do we need to worry about our own health when around someone who is seemingly ill? How far can germs be spread when people sneeze and cough?

There are a few modes of transmission:

Large droplet transmission: This refers to the droplets sick people expel when they cough, sneeze, or talk. If someone else inhales those secretions, they can get sick, too. Illnesses like the flu, the common cold, and pertussis (whooping cough) are thought to mainly spread this way.

Airborne transmission category: Illnesses like measles, tuberculosis, and chickenpox are in this category. Unlike large droplets, which need to quickly come into contact with someone’s mucous membranes in order to cause an infection, airborne transmission allows potential pathogens to remain suspended in the air for some time after someone coughs, sneezes, or talks. Then someone else can breathe in those particles and get sick.

Both at the same time: Some illnesses can infect people via both forms of transmission. For instance, the flu mainly spreads through large droplets, but the CDC notes that it can be airborne as well.

So, how far can germs actually make it through the air? There are really only estimates regarding how far germs can travel – depends on how forcefully a person can cough or sneeze.

Large respiratory droplets containing pathogens like influenza can travel up to 6 feet when a sick person coughs or sneezes, according to the CDC. A 2014 study by MIT scientists published in the Journal of Fluid Mechanics suggests this number may be way higher for smaller airborne particles. Researchers used high-speed video upwards of 1,000 frames per second to record sprays of mist as well as human coughs and sneezes, finding that smaller droplet particles traveled as far as 2.5 meters horizontally through the air. That’s more than 8 feet. (The study also recorded smaller airborne droplets spraying 13 to 20 feet vertically in the air, which researchers noted was theoretically high enough to enter and travel through some ceiling ventilation systems in some buildings.)

The problem with airborne pathogens isn’t just how far they can spread, it’s also how long they can hang out in the air and on objects. Measles, for instance, can live for up to two hours in the air and on surfaces, according to the CDC. This illness is so contagious that 90 percent of people who are close to a person with measles but who aren’t immune (like through vaccinations) will catch the illness.

What can we do to prevent getting ill from the coughers and sneezers around us?

  • Wash your hands! Soap and water are most effective at preventing transmission of illnesses like the cold and flu. Also keep alcohol-based (60% alcohol) hand sanitizer at the ready for the times you can’t wash your hands.
  • Try to avoid touching areas like your mouth, nose, and eyes, since those are possible portals for pathogens.
  • If someone around you is sick, the CDC advises avoiding close contact if at all possible.
  • Disinfect common surfaces (like doorknobs) often.
  • Keep your immune system strong with adequate sleep, proper food and managing stress.

If you ARE sick, what can you do to not share your germs?

  • Cover your face when you sneeze and cough – but don’t use your hands! The CDC recommends coughing or sneezing into a tissue and then throwing it away, or sneezing into your upper shirt sleeve or elbow, completely covering your nose and mouth.
  • Wash your hands thoroughly and frequently. (Especially if you slip up and cough or sneeze into your hands.)
  • Try to keep your distance from people (including staying home from work if you can).
  • Frequently disinfect surfaces you’re always touching.

Let’s do what we can to get through this flu season unscathed!

(Source: https://www.self.com/story/germs-sneezing-coughing)

 

 

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