A toxin produced by a microorganism that is released into the surrounding environment.
A toxic protein produced by a bacterium and released into its environment. It may exert adverse effects quite remote from the site of infection.
A type of bacterial toxin with the following properties: May be produced by either gram-positive or gram-negative bacteria Is secreted by the bacteria The action of the exotoxin does not necessarily require the presence of the bacteria in the host Most exotoxins are peptide or protein Most exotoxins are heat sensitive (exception: enterotoxin of Staphylococcus aureus) Classes of exotoxins: Neurotoxic, cytotoxic, or enterotoxic exotoxins Neurotoxins: Interfere with proper synaptic transmissions in neurons Cytotoxins: Inhibit specific cellular activities, such as protein synthesis Enterotoxins: Interfere with water reabsorption in the large intestine; irritiate the lining of the gastrointestinal tract
a toxic heat-labile, protein substance formed by bacteria that is found outside the bacteria.
A toxin released by a microbe.
Harmful substance produced within cells, but excreted from intact cells into the surrounding environment.
A toxic substance, secreted by bacteria and released outside the bacterial cell.
a toxin that is secreted by microorganisms into the surrounding medium
a neurotoxin produced by the bacterium Clostridium botulinum
Toxic chemicals produced inside the bacteria and secreted into the environment. Exotoxins are also responsible for food poisoning.
A toxin that originates outside the body.
a toxic substance produced and released by bacteria.
A poisonous substance produced by the microbial cell and liberated into the surrounding environment without destruction of the cell.
A toxic substance secreted by a bacterium, often causing disease, which can also act as a pyrogen.
A poison released from a living microorganism.
A toxic substance made by bacteria released outside the bacterial cell that causes illness in a patient.
A poisonous secretion produced by bacilli which is carried in the bloodstream to other parts of the body.
An exotoxin is a soluble chemical excreted by a microorganism, including bacteria, fungi, algae, and protozoa. An exotoxin is a protein which can cause damage to the host by destroying cells or disrupting normal cellular metabolism. Both gram negative and gram positive bacteria produce exotoxins.