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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]
Risk of infection is a nursing diagnosis which is defined as the state in which an individual is at risk to be infected by an opportunistic or pathogenic agent (e.g., viruses, fungi, bacteria, protozoa, or other parasites) from endogenous or exogenous sources. [1] The diagnosis was approved by NANDA in 1986. Although anyone can become infected ...
Many bacteria produce virulence factors that inhibit the host's immune system defenses. For example, a common bacterial strategy is to produce proteins that bind host antibodies. The polysaccharide capsule of Streptococcus pneumoniae inhibits phagocytosis of the bacterium by host immune cells. [citation needed] Toxins
A number of compounds can decrease the risk of bacteria growing on surfaces including: copper, silver, and germicides. [43] There have been a number of studies evaluating the use of no-touch cleaning systems particularly the use of ultraviolet C devices. One review was inconclusive due to lack of, or of poor quality evidence. [44]
Mycobacterium tuberculosis is a species of bacteria that causes tuberculosis, a respiratory infection. [13] Pseudomonas aeruginosa is a bacterium that can cause respiratory infections. It is frequently associated with cystic fibrosis and hospital-acquired infections. [14] Salmonella is a genus of bacteria, known to cause gastrointestinal ...
Health authorities around the world are still grappling with lessons learned at the start of the Covid-19 pandemic and trying to determine the best way to prevent a new one.. Many researchers have ...
An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection. Infections can be caused by a wide range of pathogens, most prominently bacteria and viruses. [2] Hosts can fight infections using their immune systems.
Sepsis is caused by many organisms including bacteria, viruses, and fungi. [10] Common locations for the primary infection include the lungs, brain, urinary tract, skin, and abdominal organs. [2] Risk factors include being very young or old, a weakened immune system from conditions such as cancer or diabetes, major trauma, and burns. [1]