Results 191 to 200 of about 3,788,927 (242)

Hepatitis A virus hemagglutination and a test for hemagglutination inhibition antibodies

Journal of Clinical Microbiology, 1989
Like enteroviruses, hepatitis A virus (HAV) hemagglutinated various species of erythrocytes under similar conditions. HAV-specific antibodies in both acute- and convalescent-phase sera were found to inhibit hemagglutination. The HAV hemagglutination inhibition test can be used for diagnosis, epidemiological surveillance, and vaccine assessment.
K H, Eckels, P L, Summers, D R, Dubois
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Rubella-Virus Hemagglutination-Inhibition Test

New England Journal of Medicine, 1967
THE isolation of rubella virus1 , 2 in 1961 opened a period of remarkable progress in studies of the virus,3 the disease4 and, recently, experimental vaccines for preventing the disease.5 , 6 Comparable progress has not been made in the development of simple, rapid serodiagnostic methods.
G L, Stewart, P D, Parkman, H E, Hopps, R D, Douglas, J P, Hamilton, H M, Meyer   +5 more
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Comparison of Mycoplasma synoviae Hemagglutinating Antigens by the Hemagglutination-Inhibition Test

Avian Diseases, 1980
Mycoplasma synoviae (MS) strains were isolated from the trachea of hens from MS-positive broiler breeder flocks having progeny condemnations due to airsacculitis. Hemagglutinating (HA) antigens were made from several strains. The HA antigen made from the 95th medium passage of MS FMT strain was compared with that of the standard MS WVU 1853 strain by ...
T H, Vardaman, J H, Drott
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Cryopreserved erythrocytes in clinical laboratory hemagglutination and hemagglutination inhibition tests

Journal of Clinical Microbiology, 1985
Various concentrations of pig, guinea pig, chicken, and turkey erythrocytes (RBCs) were cryopreserved and compared with fresh RBCs in hemagglutination and hemagglutination inhibition tests. Hemagglutination and hemagglutination inhibition titers obtained with cryopreserved or fresh RBCs from the same donor differed by not more than one twofold dilution.
R K, Maes, M M, Hayes, J P, Newman
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Influence of albumin on rubella virus hemagglutination and the hemagglutination-inhibition test

Canadian Journal of Microbiology, 1975
The HEPES–saline–albumin–gelatin (HSAG) diluent found optimal for agglutination of fowl erythrocytes by rubella virus antigen is also optimal for agglutination of trypsin-treated human group O cells. Albumins from different commercial sources, however, can have varying inhibitory effects on rubella hemagglutination titers.
J B, Campbell, T, Grunberger, M L, Ellins   +2 more
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Simple hemagglutination inhibition test for the diagnosis of toxoplasmosis

Journal of Clinical Microbiology, 1985
A simple hemagglutination inhibition (HI) test for the serological diagnosis of toxoplasmosis has been developed and evaluated. A total of 84 human and 120 mouse serum samples were tested by the newly developed HI test and compared with an immunoglobulin G-indirect fluorescent antibody test. Statistical analysis of serum titers obtained by using the HI
G N, Chang, J A, Nemzek, J L, Tjostem, D A, Gabrielson   +3 more
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Sensitive hemagglutination inhibition test for mumps antibody

Journal of Clinical Microbiology, 1981
Incorporation of heterologous immunoglobulin against human immunoglobulin G into the mumps HI tests provided a highly sensitive and specific way of measuring mumps antibody in human sera. The sensitivity of this enhanced mumps HI test compared favorably with that of an anti-immunoglobulin-enhanced virus plaque neutralization test, but the HI test ...
P, Albrecht, M, Klutch
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A Hemagglutination-Inhibition Test for Mycoplasma meleagridis Antibodies

Avian Diseases, 1969
A hemagglutination-inhibition test for demonstrating antibodies to Mycoplasma meleagridis is reported. Antigen used in the test was prepared from a hemagglutinating strain of M. meleagridis isolated from a turkey embryo. The antigen, suspended in phenolized saline, could be stored at 50C for weeks and still be effective. Examination of serums from both
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Use of Turkey Erythrocytes for Vaccinia Virus Hemagglutination and Hemagglutination-Inhibition Tests

American Journal of Clinical Pathology, 1974
Turkey erythrocytes are uniformly susceptible to agglutination by vaccinia virus hemagglutinin prepared from the chorioallantoic membrane of the chick embryo and from primary rabbit kidney tissue cell cultures. Forty-seven lots of erythrocytes were tested and all were agglutinated by vaccinia virus.
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Preparation of Mycoplasma Synoviae Hemagglutinating Antigen and Its Use in the Hemagglutination-Inhibition Test

Avian Diseases, 1969
SUMMARY A satisfactory hemagglutinating (HA) antigen was produced from isolate WVU 1853 of M. synoviae grown in a mycoplasma broth formulated by Frey. The HA antigen, employed in the HI test, showed good specificity in differentiating M. synoviae from M. gallisepticum infection.
T H, Vardaman, H W, Yoder
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