Commonly the people have a tendency to clean their nose in the public place. This is an unwanted act and also unhygienic. They may rub the mucous in some place especially in the handles of chairs in which they are sitting. Certain viruses can spread out of this habit.
Even I have seen well educated and rich people are doing this leave alone uneducated and village folks. So, people especially children in the schools need to be taught about the need for cleaning the nostrils while taking bath so that there will not be any mucus to be removed and rubbed in public places. Will it reach the public?