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Pathogenic bacteria are bacteria that can cause disease. [1] This article focuses on the bacteria that are pathogenic to humans. Most species of bacteria are harmless and many are beneficial but others can cause infectious diseases. The number of these pathogenic species in humans is estimated to be fewer than a hundred. [2]
Due to misuse of antibiotics, such as prematurely ended prescriptions exposing bacteria to evolutionary pressure under sublethal doses, some bacterial pathogens have developed antibiotic resistance. [52] For example, a genetically distinct strain of Staphylococcus aureus called MRSA is resistant to the commonly prescribed beta-lactam antibiotics.
As microorganisms, in particular bacteria, are found virtually everywhere, harmful microorganisms may be reduced to acceptable levels rather than actually eliminated. In food preparation, microorganisms are reduced by preservation methods such as cooking, cleanliness of utensils, short storage periods, or by low temperatures.
Bacteria that derive electrons from inorganic compounds such as hydrogen, carbon monoxide, or ammonia are called lithotrophs, while those that use organic compounds are called organotrophs. [109] Still, more specifically, aerobic organisms use oxygen as the terminal electron acceptor, while anaerobic organisms use other compounds such as ...
Autotrophic bacteria and algae are unrelated organisms; however, in aquatic environments, they are both primary producers. [17] Cyanobacteria are an important autotrophic bacteria in the water food web. Explosions of cyanobacteria known as algal blooms can produce cyanotoxins harmful to both the ecosystem and
Food safety experts suggest that people cook beef to 160 degrees in order to kill all bacteria that can potentially cause illness. It is also important to keep raw meat away from other foods to ...
This is a list of bacteria that are significant in medicine. ... Cutibacterium acnes (previously called Propionibacterium acnes) E. Ehrlichia chaffeensis;
Bacteria found in a flagship Glasgow hospital within a couple of years of its opening were “not normal”, an inquiry has heard. The Scottish Hospitals Inquiry took evidence on Wednesday from ...