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UrduAs the seasons transition from warm fall nights to cool and wintry evenings, children with asthma often experience a rise in wheezing or chest tightness, because weather changes and cold temperatures are often asthma triggers.
Tag: Coughing
Face Shield or Face Mask to Stop the Spread of COVID-19?
If CDC guidelines aren’t enough to convince you that face shields alone shouldn’t be used to stop the spread of COVID-19, then maybe a new visualization study will. Researchers simulated coughing and sneezing from a mannequin’s mouth using a laser light to visualize droplets expelled. They tested a plastic face shield and found that they block the initial forward motion of the exhaled jet, however, aerosolized droplets are able to move around the visor with relative ease.
Sounds of sickness: Perceptions of coughs, sneezes not diagnosed accurately
You’re standing in the store’s check-out line, and the customer behind you viciously coughs.
Stay 6 Feet Apart. Mechanically Simulated Cough Reveals That May Not be Enough
A preliminary, flow visualization experiment suggests that staying 6 feet apart may not be sufficient. It only took the particles from the simulated cough a couple of seconds to travel 3 feet; in about 12 seconds it reached 6 feet and in about 41 seconds it reached around 9 feet. For a heavy cough, the particles can even travel up to 12 feet. In addition, a face mask doesn’t stop the particles 100 percent, but it does slow down the cough jets.