I think that I read that there have been 30000 cases so far.
I hope that it does not become a lot worse, especially in the next flu season.
I know that United Airlines stopped giving out blankets and pillows except for business class passengers because they said they don't always clean them between uses and they didn't want to risk spreading the flu. I think it's probably a BS reason and their real goal is just to save money and this gave them a convenient excuse, though.