titer


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titer

 [ti´ter]
the quantity of a substance required to react with or to correspond to a given amount of another substance.
agglutination titer the highest dilution of a serum which causes clumping of microorganisms or other particulate antigens.

ti·ter

(tī'tĕr),
The standard of strength of a volumetric test solution; the assay value of an unknown measure by volumetric means.
[Fr. titre, standard]

titer

/ti·ter/ (ti´ter) the quantity of a substance required to react with or to correspond to a given amount of another substance.
agglutination titer  the highest dilution of a serum which causes clumping of microorganisms or other particulate antigens.

titer

[tī′tər]
Etymology: Fr, titre, to make a standard,
1 the normality of a solution or substance, determined by titration to find the equivalence of two reactants.
2 the extent to which an antibody can be diluted before losing its power to react with a specific antigen.
3 the highest dilution of a serum that causes clumping of bacteria or other visible reaction. Also spelled titre.

titer

Infectious disease Somewhat incorrectly, the term titer refers to the serum concentration of an antibiotic at which it is (bacteri)–cidal or static. See Serum bactericidal titer, Serum inhibitory titer.

ti·ter

(tī'tĕr)
The standard of strength of a volumetric test solution; the assay value of an unknown measure by volumetric means.
Synonym(s): titre.
[Fr. titre, standard]

Titer

A dilution of a substance with an exact known amount of fluid. For example, one part of serum diluted with four parts of saline is a titer of 1:4.

ti·ter

(tī'tĕr)
The standard of strength of a volumetric test solution.
Synonym(s): titre.
[Fr. titre, standard]

titer (tī´tur),

n the standard amount by volume of a material required to produce a desired reaction with another material.

titer

the quantity of a substance required to react with or to correspond to a given amount of another substance.

agglutination titer
the highest dilution of a serum which causes clumping of microorganisms or other particulate antigens.
References in periodicals archive ?
None of the 173 study participants were positive for IgG against AMAV or LCMV The IgG titers against WWAV in the positive samples were 320 (n = 1), 1,280 (n = 3), and [greater than or equal to] 5,120 (n = 4).
The noninferiority and superiority tests were done separately for the two influenza seasons, because the vaccine formulations for those seasons contained different A/H3N2 and B strains; the A/H1N1 strains were the same during both seasons, which may explain the lack of superiority in titer response for A/H1N1 during the 2012-2013 season, since 34 patients received the vaccine in 2011-2012, as well, Dr.
HBsAg and anti-HBs titer were determined one month after the 1st, 2nd, 3rd and 4th doses of vaccine.
Similar concentration-dependent titer reduction by addition of exogenous recombinant human tTG suggests that sequestration of anti-tTG antibodies by endogenous RBC-tTG is the mechanism responsible.
The seroprotection rate was defined as the percentage of serum titers [greater than or equal to]40 by HI or titers [greater than or equal to]160 by MN.
Their HAI titers were measured just before vaccination (day 0), and on days 21 and 42.
For example, a corticosteroid or an immunosuppressant is indicated in cases that are complicated by an increase in lactate dehydrogenase and serum ANA titers.
During the 14 days of treatment, three of five patients evaluated had an initial decrease in viral load, whereas two of five exhibited little initial change in viral titer.
Scale-up runs demonstrating viable cell densities up to 170 million cells/ml, and record titer improvements of 5-10 fold over standard fed-batch and perfusion processes have been consistently achieved in multiple mammalian cell systems including CHO, hybridoma and human cell lines.
0/1 2/5 positive/total Modal RPR titer 16 8 Syphilis stage Secondary Characteristic HIV-positive HIV-negative Total no.
In a multivariable regression model for pneumococcal serotype 23, antibody titer was associated with AF-alb, but only with marginal statistical significance (p = 0.
Her complete blood count and her blood levels of thyroid-stimulating hormone (TSH), thyroperoxidase antibody, antinuclear antibody, rheumatoid factor, Lyme titer, and anti-acetylcholine receptor antibody were within normal limits.