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After seroconversion, sufficient concentration of the specific antibody exists in the blood, and the serological assay will detect the antibody. The individual is now seropositive for the antibody. [14] During seroconversion, when the amounts of antibody and antigen are very similar, it may not be possible to detect free antigen or free ...
Seroconversion is defined as an increase in HI (Hemagglutination-Inhibition) antibody titer of at least 4-fold, with a minimum post-vaccination HI titer of 1:40. I believe this refers to results from a Viral Hemagglutination Assay
Changes in viral load are usually reported as a log change (in powers of 10). For example, a three log increase in viral load (3 log10) is an increase of 10 3 or 1,000 times the previously reported level, while a drop from 500,000 to 500 copies would be a three-log-drop (also 3 log10). [citation needed]
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Correlates of immunity or correlates of protection to a virus or other infectious pathogen are measurable signs that a person (or other potential host) is immune, in the sense of being protected against becoming infected and/or developing disease.
House Speaker Mike Johnson informed Republicans at a closed-door meeting Saturday that Donald Trump favored moving his agenda as one sweeping package, according to sources in attendance — a key ...
$220 at Amazon. See at Le Creuset. 2024 F&W Best New Chef Leina Horii of Kisser in Nashville thinks that a large, seasoned cast iron skillet makes for a fantastic (albeit, heavy) holiday gift ...
Clinically, measured IgG antibody levels are generally considered to be indicative of an individual's immune status to particular pathogens. A common example of this practice are titers drawn to demonstrate serologic immunity to measles, mumps, and rubella (MMR), hepatitis B virus , and varicella (chickenpox), among others.