Coronavirus is a respiratory virus that is thought to be transmitted through tiny droplets excreted by coughing and sneezing. Research on other viruses has shown that on an airplane, you are at risk if you are within two or three rows of an infected person—basically the distance a droplet might travel.
Air on airplanes is generally isolated to specific zones—the air in your zone gets sucked in and recirculated in the same zone. In addition, most aircraft flying today pass recirculated air through a series of filters 20 to 30 times an hour. The filters used, called High-Efficiency Particulate Air, or HEPA, filters, are hospital-operating-room grade and capable of removing 99.9% of particulate such as bacteria, fungi, larger viruses and virus clumps, according to the CDC.
“The cabin air environment is not conducive to the spread of most infectious diseases,” the CDC says in a briefing on air travel.
The World Health Organization says its general recommendations for travelers apply to coronavirus:
* Frequently clean your hands by using alcohol-based hand rub or soap and water.
* When coughing and sneezing, cover your mouth and nose with flexed elbow or tissue, throw that tissue away immediately and wash hands.
* Avoid close contact with anyone who has a fever and cough.
* If you have a fever, cough and difficulty breathing, seek medical care early and share previous travel history with your health-care provider.
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* Airline cleaning of airplanes is scant, so you may want to bring your own disinfecting wipes for public surfaces like tray tables and arm rests.
* If you do want to wear a face mask, you have to get something better than a regular paper surgical mask. Those masks, which are designed to stop your germs from getting out and infecting others, won’t stop the coronavirus from getting in, doctors say. You need a mask called an N95 respirator, which is thicker than a standard mask. Those masks are challenging to put on and wear for long periods.
* If someone near you is sneezing and coughing, ask the person to cover his or her mouth, and then ask a flight attendant to move you to an empty seat. Even a middle seat.