Air pressure in the middle ear usually is the same as the air pressure outside the body. Most people are familiar with the pressure changes (relieved by ear popping) that occur when you fly, travel to high altitudes, or dive underwater.
There are many types of E. coli, and most of them are harmless. But some can cause bloody diarrhea. Some strains of E. coli bacteria (such as a strain called O157:H7) may also cause severe anemia or kidney failure, which can lead to death.Other strains of E. coli can cause urinary tract infections or other infections. You get an E. coli infection by coming into contact with the feces, or stool, of humans or animals.This can happen when you drink water or eat food that has been contaminated by feces. E. coli can get into meat during processing.ther strains of E. coli can cause urinary tract infections or other infections. You get an E. coli infection by coming into contact with the feces, or stool, of humans or animals. This can happen when you drink water or eat food that has been contaminated by feces.
Different strains of E. coli can be found in different type of animals, so we can determine the source (from human or from other animals) of the stools by examining which strain of E. coli is present in the stools. E. coli can also be found in environments at higher temperature, such as on the edge of hot springs. E. coli is commonly used as an indicator in the field of water purification. The E. coli-index can indicate how much human feces is in the water.