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Results for “Neutralization Tests”

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At least 379 records · Page 21Linked to original sources
PubMed1979

Neutralization test in influenza: use in individuals without hemagglutination inhibition antibody.

In influenza immunization trials, patients who were seronegative by the hemagglutination inhibition test could be divided into two groups according to preimmunization levels of neutralizing (Neut) and neuraminidase inhibition (NI) antibodies. The group with low levels of Neut and NI antibodies usually developed adequate levels of hemagglutination inhibition antibody after one dose of vaccine, and the group with undetectable Neut and NI antibodies did not.

Antibodies, Viral↗
PubMed1987

Antigenic relationship of West Nile strains by titre ratios calculated from cross-neutralization test results.

The antigenic relationship of ten South African West Nile isolates, the South African prototype virus H442, the Egyptian strain EG101 and the Indian strain G2266 were compared using titre ratios. The titre ratios or 'R' values were calculated from heterologous and homologous neutralization titres and expressed as a percentage. Substantial antigenic differences were demonstrated between the South African prototype strain and the majority of the recently obtained South African isolates, seven of which were fairly closely related and possibly form a distinct antigenic sub-set. The recent isolates also differed from the Egyptian and Indian West Nile isolates. The heterologous results between the South African West Nile strains and the Indian strain G2266 suggest that prior infection with an Indian West Nile virus would give poor protection against the South African viruses, whereas the reverse would not be so.

Animals↗
PubMed1993

[Comparative studies of the detection of antibodies against BHV-5 using the enzyme-linked immunosorbent assay, serum neutralization test, cell assay and immunofluorescence test].

A comparison of the analyses of 490 serum samples from various flocks of sheep for the detection of BHV-5 antibodies using ELISA, serum neutralisation test, cell assay and immunofluorescence assay showed nearly identical results regarding the distinction between positive and negative serum samples. The percentage of serum samples with antibodies against BHV-5 antigen differed from test to test: ELISA 268 (54.7%), cell assay 323 (65.8%), immunofluorescence assay 222 (46.6%) and serum neutralisation test 221 (45.1%). With ELISA, cell assay and immunofluorescence assay the experiment can be carried out more simply and rapidly than with serum neutralisation test.

Animals↗