Pathogen n., plural: pathogens [ˈpæθ ə dʒən] Definition: An agent causing disease or illness to its host, such as an organism or infectious particle capable of producing a disease in another organism. Table of Contents
Opportunistic pathogen is an infectious pathogen that is a normally commensal or harmless microorganism in the body. It causes diseases when the resistance of the host is altered.
Each pathogen has specific antigens. An antigen is a substance the body does not recognize that results in an immune response. This may be a molecule on the surface of a pathogen or a substance such as a protein, lipid, polysaccharide, or nucleic acid. When a pathogen enters the body,...
Learn the definition of the virulence factor. Discover virulence factor examples. Know about virulence factors of bacteria and virulence factors of...
Using the OmpB proteins located on the surface outer membrane, the bacteria are also able to adhere to the endothelial cells. This allows the bacterium to interact with given a protein (Ku70) on the surface of the cell (host cell) which results in the internalization of the pathogen through...
The human body employs three lines of defense against pathogens: mechanical and chemical barriers, the innate immunesystem, and the adaptive immune system. The first line includes skin and mucous membranes that block pathogen entry. The innate immune system features phagocytic cells, such as macrophag...
“Vehicles that may indirectly transmit an infectious agent include food, water, biologic products (blood), and fomites (inanimate objects such as handkerchiefs, bedding, or surgical scalpels). A vehicle may passively carry a pathogen — as food or water may carry hepatitis A virus.” ...
plant virus - a plant pathogen that is a virus consisting of a single strand of RNA animal virus - an animal pathogen that is a virus slow virus - a virus that remains dormant in the body for a long time before symptoms appear; "kuru is caused by a slow virus" tumor virus - a cel...
a patient is likely to experience tender and bleeding gums, teeth sensitivity, a gradual separation of the gum from the teeth, and teeth loss. This is further aggravated by the fact that as the pathogen proliferates, they form biofilms that not only protect them but also allow them to sprea...
Provide an example of a pathogen in the category. Provide the genus and species of the pathogen, along with the name of the illness the pathogen causes in humans. From List several ways in which microbes affect the lives of humans. What four conditions must ...