Sentence examples for serum samples were defined from inspiring English sources

B. burgdorferi seropositive serum samples were defined by the presence of B. burgdorferi antibody as determined by ELISA and supplemental Western blot IgM or IgG assays.

B. miyamotoi sensu lato?"seropositive serum samples were defined by the presence of B. miyamotoi sensu lato antibody as determined by using ELISA and confirmatory Western blot assays for IgG alone or IgG plus IgM antibody.

The SLE activity at periodic serum sampling was defined based on the SLEDAI values in the medical records [ 22].

The lowest concentration of analyte (anti-PA IgG) that can be detected with a specific degree of probability in a diluted serum sample is defined as the minimum detectable concentration (MDC).

The neutralization titer (PRNT50) of the test serum sample is defined as the reciprocal of the highest test serum dilution for which the virus infectivity is reduced by 50% when compared with the average plaque count of the challenge virus control and is calculated by using a four-point linear regression method.

On the basis of this test, 22 patients with immunoreactivity in both serum and SF samples were defined as HTLV-I carriers.

At the end of the incubation, 50 µl of 0.5% chicken (for influenza H1) or turkey (for influenza H3 viruses) red blood cells were added and incubated for a minimum of 30 min. The serum HAI antibody titer of a given sample was defined as the reciprocal of the last serum dilution with no hemagglutination.

The standard serum was defined as 100 U and antibody titers of serum samples were calculated from the standard curve.

The standard serum was defined as one unit and the antibody titers of serum samples were determined by the standard curve.

Patients were defined as having advanced disease if they were found to be unresectable at the time of operation or had nodal involvement on final pathology.Preoperative serum samples were available for 134 patients.

Serum samples were collected from 2003 through 2007.