Activation of B cells requires two signals. Depending on the nature of the antigen, B-cell activation proceeds by two different routes, one dependent on helper T cells (TH cells), the other...
Year: 2018
Bismuth sulfite agar (BS) is a selective as well as a differential medium for isolation and presumptive identification of Salmonella spp, especially Salmonella Typhi. Salmonella spp are the...
Blood culture is one of the most simple and commonly used investigations to establish the etiology of bloodstream infections (i.e. detection of bacteremia, sepsis, and fungemia). Early diagnosis and...
IgG antibody crosses the placenta and plays an important role in protecting the developing fetus. If I can write only a single sentence to introduce IgG, the above sentence may be the most...
Chromogenic culture media are used to isolate, identify, and differentiate specific microorganisms from a heterogeneous population. The medium contains chromogenic substrate which is utilized by...
Immunity is defined as the resistance offered by the host against microorganisms or any other foreign substance(s). Immunity can be broadly classified into two types based on its specificity; less...