that would be true of almost any building that housed a lot of people coming and going......various people of dubious cleanliness using the bathrooms, coughing, hacking, etc.....
whenever you exist in a closed in environment, you can expect an increased chance of "catching" the flavor of the day....
point is:.....during cold and flu seasons, stay away from large crowds in buildings, and do not go to the hospital unless absolutely necessary.....
and anyone who really thinks they are being "kind" by visiting sick people in the hospital, are foolish.....sick people need to have peace and quiet and chances to sleep thru out the day since there is so much commotion 24/7 as it is.....and don't come calling on sick people if you are already sick yourself, even a little cough......
Personally this is advice I have been given several times from doctors, from hospital staff nurses and from lawyers. Some patients who otherwise had a fair to good chance of recovering have suffered from neglect and in some rare cases they have suffered outright abuse. I have witnessed both.