Pretty much sums up how some still believe it's nothing to worry about.
“Three main factors stand in the way of prevention: First, public indifference. People do not appreciate the risks they run. The second factor.....is the personal character of the measures which must be employed...It does not lie in human nature for a man who thinks he has only a slight cold to shut himself up in rigid isolation... Third, the highly infectious nature of the respiratory infections adds to the difficulty of their control.”
Major George A Soper, 1919, The Lessons of the Pandemic, Science
Some will never learn
“Three main factors stand in the way of prevention: First, public indifference. People do not appreciate the risks they run. The second factor.....is the personal character of the measures which must be employed...It does not lie in human nature for a man who thinks he has only a slight cold to shut himself up in rigid isolation... Third, the highly infectious nature of the respiratory infections adds to the difficulty of their control.”
Major George A Soper, 1919, The Lessons of the Pandemic, Science
Some will never learn