When the switch of a flashlight is pushed into the ON position, it makes contact between two contact strips, which begin a flow of electricity, powered from the battery. The batteries are connected in such a way that electricity (flow of electrons) runs between the positive and negative electrodes of the battery.
Shigella infection (shigellosis) is an intestinal disease caused by a family of bacteria known as shigella. The main sign of shigella infection is diarrhea, which often is bloody. Shigella can be passed through direct contact with the bacteria in the stool.
When the intestinal infection is caused by bacteria, it is termed as a bacterial intestinal infection or bacterial gastroenteritis. The pathogenic bacteria invades the intestines and causes inflammation. It enters the human body through the intake of contaminated food, water, and undercooked meat.hen the intestinal infection is caused by bacteria, it is termed as a bacterial intestinal infection or bacterial gastroenteritis. The pathogenic bacteria invades the intestines and causes inflammation. It enters the human body through the intake of contaminated food, water, and undercooked meat.