In scientific research, controls are employed as standards. By separating the control from the samples exposed to an experimental condition, such as the introduction of an analyte, the effects of the ...

Control swabs are included in some testing kits. These are used to check that the tests are working properly and are not for use in patient testing. An Instagram post shares an image of what appears ...

Hepatitis A blood tests check for immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies. An IgG-positive and IgM-negative result may suggest immunity to hepatitis A. A doctor may request a ...

Bacterial species, and even specific strains can be differentiated using a number of molecular techniques such as PCR, quantitative PCR, genome sequencing and mass spectrometry. But even without ...