The common fly (Musca domestica).- the only way to prevent the flight curing diseases to destroy history in place, keep them out of the home, etc., when developed, by screens and swat or catch by flypaper, etc., everyone seen in a room.

Houseflies are a danger to human life.  Airborne filth, feed upon garbage, sewage waste matter of all kinds.  They carry germs on the pro-business of their bodies, and a single flaw is known to have carried as many as 350,000 germs and given them off into the liquid food in which it was floating.  They also carry numerous germs inside their bodies which they convey to food, etc., and their vomit and all matter.

Flies can carry disease germs of typhoid fever, consumption, diarrhea, dysentery and other diseases from a sufferer to you.  They come in contact with your food, milk, water, etc., you’re sleeping child, or a light on an open wound, direct from the garbage can, because the door, this bit industry, etc., from decaying animal and vegetable matter and from the sick room.  Thus every individual should do everything possible to aid the physician, city and state and destroy these known carriers of filth and disease and thereby prevent sickness, due to carelessness and indifference by permitting flies to breathe and live.

If you consider the tone of this particular section, you would think that the housefly was the Swiss Army knife of disease carriers in the Western world.  In fact today we understand their purpose and the world a little bit better, but that doesn’t mean that they should be entirely permitted to run amok.  Typically the presence as a result of some other item that has started to decay in the area and attracted flies.  The presence of this item sometimes can be more dangerous than the flight itself, but the fly can definitely spread that around once the process is started.  In their defense there are some practical uses for utilizing flies or even sterile I’ll maggots to help clean items from time to time.