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Virulence is the degree of pathogenicity within a types of parasites. The factors of virulence are the colonization of a niche in the host, immunoevasion, immunosuppression, entry and exit of cells and obtaining nutrition from the host.
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoa gene in any pathogen which codes for the virulence factor like protein or polysacchride is called virulence gene and is denoted by Vir genes
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What are disease-producing microorganisms called?
They are usually just called organisms or bacteria, virus, pathogen, or parasites.
What are the 2 types of DNA plasmids found in microorganisms?
Plasmids are autonomous DNA molecules of varying size which are localized within the cytoplasm of bacteria. There are two kinds:virulence plasmids = determines the virulence factors of the bacteriaresistance plasmids (R-plasmids) = determines the bacteria's resistance to anti-infective agents
How is the capsule stain used in clinical microbiology?
Demonstrating the presence of a capsule is a means of diagnosis and determining the organisms virulence.
Why virulence lost on sub-culturing?
Because in culture outside of the host organism microbe or virus are not subject to immune response pressure, so their own genes that are responsible for virulence become not necessary and can be lost due to lack of selective pressure. Also, composition of the culture media can be such, that some important genes that are needed to pathogen's survival in its normal host stop being necessary. The whole thing is a lot like an atrophy of muscles when they are not used.
Which part of a virus determines which host cells it can effect?
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What are the virulence factors of Rocky Mountain spotted fever?
How does the rocky mountain spotted fever organism result in disease & what are the virulence factors?
Microbial virulence factors?
The virulence factor list include capsules, fimbriae, outer membrane proteins, techoic acids, protein A, and m protein. Virulence factors are factors that allow pathogens to avoid host defense mechanisms and adversely affect the host.
What is a virulence marker?
A virulence marker is a diagnostic tool in detecting viral factors. The importance of identifying viral factors lies in opportunities for prevention and to identify modes of transmission.
What are Virulence factors of pathogens under exoenzymes and toxins?
Erythrogenic
Attributes of an organism that promote pathogenicity are called?
Virulence factors
What are parasites and their virulence factors also What are some diseases that are parasitic?
candida produces parasites
What does not contribute to the virulence of a pathogen?
There are infinitely many things that do not contribute to the virulence of a pathogen. Elvis does not contribute to the virulence of a pathogen.
What are the virulence factors for propionibacterium acnes?
The primary virulence factors of propionibacterium acnes are lipase (which helps to break down the yucky oils/lipids on our face), hyaluronidase (which is an enzyme that breaks down the connective tissues and increases the permeability of connective tissues), neuraminidase, proteases, inflammatory mediators, and other enzymes.
When was Virulence - album - created?
Virulence - album - was created on 2007-01-23.
What is a virulence factor for diphtheria?
The virulence factor for diphtheria is an exotoxin named diphtheria exotoxin.
Are toxins virulence factors?
No. For something to be virulent it must be alive. Virulence usually refers to pathogens, like bacteria, viruses, and yeasts. But, pathogens, themselves, can create toxins by their metabolic activity. Still, however, the toxin itself wouldn't have the property of being virulent, only the "bug" would be.
Do microorganisms with smaller infectious dose have greater or lesser virulence?
small infectious dose leads to greater virulence
