-
CLASS SWITCHING
the change in immunoglobulin isotype (or class) secretion that results during B-cell and then plasma cell differentation
-
ANTITOXIN
an antibody to a microbial toxin, usually a bacterial exotoxin, that combines specifically with the toxin, in vivo and invitro, neutralizing the toxin.
-
LYSOZYME
an enzyme that degrades peptidoglycan by hydrolyzing the (1-4) bond that joins N-acetylmuramic acid and N-acetylglucosamine.
-
ONCOGENES
a gene whose activity is associated with the conversion of normal cells to cancer cells.
-
VIRON
a complete virus particle that represents the extracellular phase of the virus life cycle. At the simplest it consits of a protien capsid surrounding a single nucleic acid molecule.
-
NUCLEOCAPSID
the nucleic acid and its surrounding protein coat or capsid. the basic unit of virion structure.
-
CYTOPATHIC EFFECTS
- the observable change that occurs in cells as a result of viral replication.
- example include ballooning, binding together, clustering or even death of the cultured cells.
-
XEONOGRAFT
a tissue graft between animals of different species.
-
COOPERATION
a positive but not obligatory interaction between two different organism
-
PATHOGEN
any virus, bacteria, or other agent that causes disease
-
FORMITE
an object that is not in itself harmful, but is able to harbor and transmit pathogenic organisms.
-
OPPORTUNISTIC
a microorganism that is usually free living or a part of the host normal microbiota, but which may become pathogenic under certain circumstances such as when the immune system is compromised.
-
ANAMNESTIC RESPONSE
the recall, or the remembering by the immune system of a prior response to a given antigen.
-
PARASITISM
a type of symbiosis in which one organism benefits from the other and the host is usually harmed.
-
LATENT INFECTION
Virus infection in which the virus stops reproducing and remains dormant for a period before becoming active again.
-
ACUTE INFECTION
Virus infection with a fairly rapid onset that last for a relatively short time. Short but severe.
|
|