This article from the New York Times is very helpful and contains good information about the virus and how to protect yourself when flying.
When a video of Naomi Campbell cleaning her airplane seat and wearing a mask and gloves was shared online last year, it made the rounds because her behavior seemed exaggerated. (“Clean everything you touch,” Ms. Campbell said in the video.)
Major airlines, including Delta Air Lines and American Airlines, say they clean their planes to varying degrees between flights, and that plane cleanliness is a priority. But some travelers, including apparently Ms. Campbell, prefer the comfort of knowing they’ve also taken measures of their own to sanitize their airplane space.