antibody titer


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antibody titer

the concentration of antibodies circulating in the bloodstream of an individual. A rising titer usually indicates the body's response to antigens associated with an active infection.

antibody titer

The amount of a specific antibody present in the serum, usually as a result of an acquired infection; titers for IgM usually rise abruptly at the time of infection–acute phase and fall slowly; during the 'convalescent' phase, IgG ↑ and is elevated for life. See Seropositivity.

antibody titer

The concentration of a specific antibody in plasma. Antibody titers are used to establish the diagnosis of some infectious diseases: a rising titer indicates a recent exposure to a specific infectious antigen.
See also: titer
References in periodicals archive ?
29%) developed protective antibody titer after receiving their 4th dose of vaccine compared with other trials done by Goyal et al.
In the control group, average maternal antibody levels were as high as 8 of HI antibody titer at hatch and thereafter decreased quickly.
1964) and an increase in the antibody titer and cell-mediated response (DTH) at 100 mg/kg body wt.
However, hemagglutination inhibition (HI) and/or microneutralization (MN) test results showed 7 persons had antibody titers [greater than or equal to] 80 for subtype H5N2 virus; 6 of these persons showed seroconversion for the virus (Table 2).
Unfortunately, it was not possible to check her VZV antibody titers before her recurrent varicella episode.
To evaluate the effect of the storage time on the anti-human-tTG titers, we compared the antibody titers of the negative sera collected in 1991 with the antibody titers of the sera collected in 2003 from 100 randomly selected individuals belonging to group 3.
2% of all travelers had a confirmed influenza virus infection, defined as a [greater than or equal to] 4-fold increase in antibody titers, and an influenza incidence of 1.
HI titer 1:40 is defined as the proportion of subjects with a minimum post-vaccination HI antibody titer of 1:40.
Antibody titers against pneumococcal vaccine were measured at the Department of Immunology, Institute of Child Health (London, UK).
At 5 weeks post injection, it is found that microparticles with higher aspect ratios (ratio of its longer dimension to its shorter dimension) have significantly higher antibody titers than particles with an aspect ratio of 1 or soluble protein.
To determine the seroprevalence of preexisting hemagglutinin inhibition (HAI) antibody titers to influenza strains with pandemic potential, we tested serum samples for antibodies to A(H1N1)pdm09 virus and the 1918, 1957, and 1968 pandemic viruses.

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