This spray often carries the germs of disease. From certain forms of leprosy and tuberculosis, thousands of germs capable of producing these diseases, are breathed in by those who are standing within the zone of the spray. Many of the influenzas or so-called colds are communicated from one person to another in the same way. Some apparently healthy people have disease producing organisms that are sneezed out. If taken into the respiratory tract of others who have less resistance, they will cause whatever special disease the particular inspired germ produces.
Poor ventilation causes much sickness.
Fresh air twenty-four hours of the day is one of the greatest medicines in the world. Nearly everyone can get fresh air. A good walk in the day time and the circulation of fresh air in the house, school or office, both night and day, are great disease preventatives. Los Angeles Health Dept.