How to Spot And Avoid Sick Air Travelers

(AFP) People who fly on airplanes while contagious can indeed get other people sick, but the risk is mainly to those seated next to them or in the adjacent row, US researchers said Monday.

The study in the Proceedings of the National Academy of Sciences (PNAS) is the first to quantify the odds of getting sick based on a passenger’s proximity to an infectious person.

Researchers studied 10 transcontinental flights and meticulously tracked passenger movements to estimate the likelihood of common respiratory infections like severe acute respiratory syndrome (SARS) and influenza, which are spread by tiny droplets in the air and on surfaces.

“Passengers seated within one row and within two seats laterally of the infected passenger had an 80 percent or greater probability of becoming infected,” said the study.

“For all other passengers, the probability of infection was less than three percent.”

Researchers also warned that infectious crew members could infect an average of 4.6 passengers per flight.

“Thus, it is imperative that flight attendants not fly when they are ill,” said the study led by researchers at Emory University and the Georgia Institute of Technology.

The good news is that public health guidelines typically go even further, urging those seated within two rows of an infected passenger to undergo surveillance for certain contagious diseases.

“The authors’ model argues that it requires you to be closer than previously reported — within one row and two seats of an infected passenger — as opposed to two rows regarding greatest risk of becoming ill on an airplane,” said Lenox Hill Hospital emergency physician Robert Glatter, who was not involved in the study.

“But the risk was significantly less if you were seated beyond two rows of an infected person who was coughing or sneezing. This runs counter to traditional thinking that if a person coughs or sneezes anywhere in the cabin, they will infect the entire plane.”

Public health concern

The study, which was conducted during flu season, reported only one person actively coughing, “which is often not the experience of the flying public,” Glatter added.

Swabs for respiratory viruses on tray tables and seatbelts also showed no trace of viruses, suggesting that most illness is spread by sneezing and coughing, not droplets that fall on surfaces or the ground.

“Meticulous attention to hand washing, or using hand sanitizer remain important ways to reduce your risk of becoming ill during air travel,” said Glatter.

Traveling while contagious is “an important public health concern” given that three billion passengers per year travel by air, said the report.

In 2014, a woman who was infected with Ebola flew from Cleveland to Dallas the night before she was hospitalized.

Her trip raised alarm about the prospect of a public health emergency, but luckily, no one was infected.

According to Michael Grosso, chair of pediatrics at Northwell Health in H untington, New York, the study helps clarify what has long been rumored.

“I think everyone knows that travelers often experience the onset of a cold within a couple of days after flying and they naturally connect the two,” he said.

“The bad news is that travel websites have no option which says, ‘click here to find a seat at least three away from an influenza sufferer.'” Displayed with permission from AFP via Repubhub. Image: Matthew Hurst, CC BY-SA 2.0

How to Spot – And Avoid – Sick Travelers

(Headline Health) Traveling through airports puts you at risk of picking up the germs of your fellow passengers. Here are some tips used by frequent flyers to minimize their exposure:

  • Take the first flight out in the morning. Planes and airport facilities are cleanest first thing in the morning. Passengers with infirmities, small children, and large families are less likely to be at the airport for 6 am departures. (Other advantages of very early morning flights are shorter security lines, fewer delays, and less turbulence.)
  • Use your time in the gate area before boarding to scout out passengers you wish to avoid, such as any who are sneezing, coughing, carrying medication, or traveling with children. If these passengers board ahead of you and you are assigned a seat next to them, immediately and politely ask a flight attendant to reseat you. (You should have already greeted, smiled at, and made eye contact with flight attendants while boarding.) If you are already seated and any of these passengers come on board to claim a set next to you, also immediately get up and try to get a different seat. This is easiest to do on airlines that have open seating, such as Southwest.
  • Choose aisle seats to increase the ease of changing seats before take-off or during the flight if needed.
  • Take special note of passengers who pre-board; they have publicly identified themselves as having special needs and possible infirmities. You may wish to avoid sitting next to them.
  • Know where the airlines put sick passengers. The first row bulkhead is one common spot. On the other hand, the airline wants only healthy, able-bodied adult passengers in the exit rows, making those rows a better option for avoiding sick travelers.
  • Carry hand sanitizer and a face mask; use them as needed. A loose fitting bandana or scarf may also serve as a face mask.
  • If you know you will need to use the rest room during the flight, be prepared to be the first one in when the pilot turns off the seatbelt sign.


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