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Further, the market has been studied from the perspective of technology platforms such as enzyme linked immunosorbent assay (ELISA), chemiluminescence assay, immunofluorescence assay, immunoturbidity assay, radioimmunoassay, and immunoprotein electrophoresis.
A 4-fold anti-ONNV IgG titer decrease in the indirect immunofluorescence assay was demonstrated in the second serum sample, which was collected 26 days after disease onset (Table).
Cell culture, combined with immunofluorescence assay (CC-IFA), is the gold standard for identifying Adenovirus but can take weeks to process.
Current guidelines date to 1989, when the Centers for Disease Control and Prevention (CDC) and the Association of Public Health Laboratories (APHL) released recommendations for a sequential, two-test algorithm for serodiagnosis of HIV-1 infection, using an enzyme immunoassay (EIA) for screening and either a Western blot (WB) or an indirect immunofluorescence assay (IFA) to confirm screen-positive results.
pneumoniae could not be detected by PCR or immunofluorescence assay in any specimen.
Sandwich 2-step NT-proBNP immunofluorescence assay (IFA).
Anticytokeratins are a potential source of false-positive indirect immunofluorescence assays for C-ANCA.
This compares with 1-2 weeks for the most commonly used initial HIV test, the enzyme immune assay, confirmed with Western blot or immunofluorescence assay.