Differences between innate and acquired immunity

Differences between innate and acquired immunity

Differences between innate and acquired immunity There are two general types of immunity:- Innate immunity  Acquired immunity Innate immunity:  The innate immune system includes anatomical barriers against infection both physical and chemical as well as cellular responses Acquired immunity: Acquired immunity is also called adaptive immunity.  Acquired immunity against a microbe may be induced by the …

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Cell mediated immunity vs Humoral immunity

Cell mediated immunity vs Humoral immunity

Cell mediated immunity vs Humoral immunity Cell-mediated immunity: It is mediated by both activated TH cells and CTLs. Cytokines secreted by TH cells activate various phagocytic cells, enabling them to phagocytose and kill microorganisms. This type of cell-mediated immune response is especially important against a host of bacterial and protozoal pathogens. CTLs play an important …

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Haptens

Haptens

Haptens Haptens are small organic molecules that are antigenic but not immunogenic. They are not immunogenic because they cannot activate helper T cells. Failure of hapten to activate helper T cells is due to their inability to bind to MHC proteins; they cannot bind because they are not proteins and only proteins can be presented …

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Anaerobic Culture Media, Specimen Collection and Methods of Anaerobic Culture

Anaerobic Culture Media, Specimen Collection and Methods of Anaerobic Culture

Anaerobic Culture Media, Specimen Collection and Methods of Anaerobic Culture Obligate anaerobes are bacteria that can live only in the absence of oxygen. These anaerobes are killed when exposed to the atmosphere for as briefly as 10 minutes. Some anaerobes are tolerant to small amounts of oxygen. Facultative anaerobes are those anaerobes that grow with or …

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Culture methods in microbiology

Culture methods in microbiology

Culture methods in microbiology Culture methods in microbiology are very crucial in a microbiology laboratory. Various culture methods are carried out to: Isolate bacteria in pure culture and identification by performing various tests. Demonstrate biochemical, antigenic, and other phenotypic and genomic properties of the isolated colonies. Demonstrate susceptibility of the isolated bacteria to antibiotics, bacteriophages, bacteriocins, …

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