Fear of flying during the pandemic has drastically reduced global air traffic, which has also been restricted due to border closures. If new scientific claims are borne out, the perceived heightened risk of boarding an airplane could be unfounded.
In one case, about 328 passengers and crew members were tested for coronavirus after it was learned that a March 31 flight from the US to Taiwan had been carrying 12 passengers who were symptomatic at the time. However, all the other passengers tested negative, as did the crew members.
And while there have certainly been cases of infected passengers passing the virus on to an airplane's crew or fellow travelers in recent months, the transmission rates are low.
A study recently published in medical journal JAMA Network Open found evidence of the possible spread of coronavirus during a four-hour flight from Tel Aviv to Frankfurt in March.
Two passengers developed infections after flying with a group of tourists who had come into contact with an infected hotel manager and also became infected, according to researchers from the Institute for Medical Virology at Goethe University in Frankfurt.
The two who may have been infected were seated at the back of the aircraft, directly across the aisle from seven passengers who had unknowingly picked up the virus.
An earlier flight from the UK to Vietnam on March 2, in which one passenger seemingly spread the virus to around 14 other passengers, as well as a crew member, is so far believed to be the only known on-board transmission to multiple people.
One explanation for the apparently low risk level is that the air in modern aircraft cabins is replaced with new fresh air every two to three minutes, and most planes are fitted with air filters designed to trap 99.99% of particles.
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