A ceiling fan is a mechanical fan, usually electrically powered, suspended from the ceiling of a room, that uses hub-mounted rotating paddles to circulate air.
Escherichia coli (E. coli) bacteria normally live in the intestines of people and animals. Most E. coli are harmless and actually are an important part of a healthy human intestinal tract. However, some E. coli are pathogenic, meaning they can cause illness, either diarrhea or illness outside of the intestinal tract.
Escherichia coli is a type of bacteria that is normally found in the intestinal tracts of healthy farm animals. Most types of E. coli are harmless, but some can cause serious disease in people. E. coli is a common food-borne bacterium, but it can also be transmitted to people by farm animals and their environment.scherichia coli is a type of bacteria that is normally found in the intestinal tracts of healthy farm animals. Most types of E. coli are harmless, but some can cause serious disease in people. E. coli is a common food-borne bacterium, but it can also be transmitted to people by farm animals and their environment.