Ads
related to: pathogen synonym dictionary free
Search results
Results From The WOW.Com Content Network
In biology, a pathogen (Greek: πάθος, pathos "suffering", "passion" and -γενής, -genēs "producer of"), in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. [1] The term pathogen came into use in the 1880s.
In pathology, pathogenesis is the process by which a disease or disorder develops. It can include factors which contribute not only to the onset of the disease or disorder, but also to its progression and maintenance. [1]
Subsequently, the word was used in Frank Scully's puzzle book Bedside Manna, after which time, members of the N.P.L. campaigned to include the word in major dictionaries. [ 9 ] [ 10 ] This 45-letter word, referred to as "p45", [ 11 ] first appeared in the 1939 supplement to the Merriam-Webster New International Dictionary, Second Edition .
To obtain free iron, some pathogens secrete proteins called siderophores, which take the iron away from iron-transport proteins by binding to the iron even more tightly. Once the iron-siderophore complex is formed, it is taken up by siderophore receptors on the bacterial surface and then that iron is brought into the bacterium.
The simultaneous infection of a cell or host by more than one pathogen, i.e. by more than one species or strain of virus, or by a virus and another type of microorganism such as a bacterium. complex cytopathic effect (CPE) Also cytopathogenic effect. Any change in the structure, morphology, or physiology of a host cell that is caused by viral ...
Germ (microorganism), an informal word for a pathogen; Germ cell, cell that gives rise to the gametes of an organism that reproduces sexually; Germ layer, a primary layer of cells that forms during embryonic development; Cereal germ, the reproductive part of a cereal grain; Tooth germ, an aggregation of cells that eventually forms a tooth
An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [1] An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection.
A human pathogen is a pathogen (microbe or microorganism such as a virus, bacterium, prion, or fungus) that causes disease in humans. The human physiological defense against common pathogens (such as Pneumocystis ) is mainly the responsibility of the immune system with help by some of the body's normal microbiota .