Results 241 to 250 of about 37,780 (272)

Diagnosis of Invasive Aspergillosis by Passive Hemagglutination Assay of Antibody

Journal of Infectious Diseases, 1980
Sheep red cells treated with concanavalin A and sensitized with a partially purified aspergillus antigen were used to detect antibody to Aspergillus by passive hemagglutination (PHA). Sera from eight patients with aspergillomas or allergic aspergillosis had PHA titers of greater than or equal to 1:800 and antibody detectable by immunodiffusion (ID). Of
Jonathan W. M. Gold, Jonathan W. M. Gold, Bessie Yu, Bessie Yu, Bruce D. Fisher, Bruce D. Fisher, Donald Armstrong, Donald Armstrong, Nancy Chein, Nancy Chein   +9 more
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Hemadsorption Plaque Assay for Hemagglutinating Encephalomyelitis Virus

American Journal of Veterinary Research, 1972
SUMMARY A plaque assay was developed for titration of infectivity of hemagglutinating encephalomyelitis virus (hev). Viral infection in cell cultures was kept localized by adding nutrient medium containing 1% agar to the cultures. The medium was subsequently removed, and hemadsorption was used to detect otherwise macroscopically inapparent foci of ...
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Reactivity of nonsensitized control erythrocytes in rubella passive hemagglutination assays

Journal of Clinical Microbiology, 1983
Two commercially available, nonsensitized control erythrocytes for use in rubella antibody passive hemagglutination assays detected nonspecific reactions in 10 of 600 (1.7%) and 9 of 500 (1.8%) sera tested. Reactive sera were positive with one or the other cell type, but not both.
S R Coates, R D Madsen, D F Rippe
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A Rapid-Plate Hemagglutination Assay for the Detection of Infectious Bronchitis Virus

Avian Diseases, 2000
A rapid-plate hemagglutination (HA) test to detect infectious bronchitis virus (IBV) in allantoic fluid of embryonated eggs was introduced into routine procedures for IBV identification. This system was tested in 468 diagnostic cases received by the Poultry Diagnostic and Research Center at the University of Georgia.
Pedro Villegas, Miguel Ruano, J. El-Attrache   +2 more
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Passive Hemagglutination Assay for Antibody to Subtypes of Hepatitis B Antigen

The Journal of Immunology, 1974
Abstract Antibody to the d and y subtypes of hepatitis B antigen (HB Ag) was detected by a modification of the passive hemagglutination assay (PHA) for anti-HB Ag. With this technique, anti-d or anti-y activity could be detected in many sera negative for anti-HB Ag by counterelectrophoresis but positive by PHA.
J W, Gold, H J, Alter, P V, Holland, J L, Gerin, R H, Purcell   +4 more
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AUTOMATED HEMAGGLUTINATION ASSAYS

Annals of the New York Academy of Sciences, 1965
A. Gray, P. W. Grunmeier, A. Ferrari
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[52] Virus yield-reduction assays for interferon: Picornavirus hemagglutination measurements

1981
Publisher Summary This chapter presents the virus yield-reduction assays for interferon by picornavirus hemagglutination measurements. The typical assay consists of four steps, which are (1) preparation of cell cultures, (2) exposure of cells to interferon, (3) infection of washed cell cultures with virus, and (4) measurement of virus yield.
Patricia Jameson, Sidney E. Grossberg
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Hemagglutination Assay for Virus and Antibody Detection

Hemagglutination Assay for Virus and Antibody Detection.
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The Hemagglutination-Inhibition Assay of Erythropoietin

Laboratory Medicine, 1971
Robert D. Lange, Ted P. McDonald, Tommye Ann Jordan   +2 more
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The CRISPR–Cas toolbox for analytical and diagnostic assay development

Chemical Society Reviews, 2021
Wei Feng, Qianfan Yang, Feng Li
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