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Bacterial infections are diseases that can affect your skin, lungs, brain, blood and other parts of your body. You get them from single-celled organisms multiplying or releasing toxins in your body. Common bacterial diseases include UTIs, food poisoning, STIs and some skin, sinus and ear infections. They’re often treated with antibiotics.
How Bacteria cause Disease in Living Organisms. Cell Damage by Intracellular Bacteria. One of the mechanisms that bacteria use to cause disease is through cell damage. Unlike viruses, which are obligate intracellular pathogens, not all pathogenic bacteria are obligate intracellular pathogens.
May 31, 2022 · Although most bacteria are harmless or even helpful to you, disease-causing bacteria can cause a variety of health problems. This article provides a brief overview of bacteria and bacterial diseases, their symptoms, how bacteria spread, and more.
Bacteria cause disease by secreting or excreting toxins (as in botulism), by producing toxins internally, which are released when the bacteria disintegrate (as in typhoid), or by inducing sensitivity to their antigenic properties (as in tuberculosis).
- The Editors of Encyclopaedia Britannica
Feb 18, 2022 · Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS. Fungi.
Jun 28, 2024 · Bacterial infections are caused by small, single-cell organisms called bacteria that invade the body. These infections are common, and there are many ways you can get them. An overgrowth of harmful bacteria causes a bacterial infection. Different types of bacteria can cause different symptoms.
Lactobacillus bacteria, which produce lactic acid to help with digestion. And though some microbes make us sick and even kill us, in the long run they have a shared interest in our survival. For these tiny invaders, a dead host is a dead end. The success of microorganisms is due to their remarkable adaptability.
