نتایج جستجو برای: haemagglutination inhibition
تعداد نتایج: 328725 فیلتر نتایج به سال:
Haemagglutination inhibition tests are easy to perform and easy to read. The results are reproducible and are not subject to the vagaries of supply and temperament inherent in tests using living creatures. In a series of tests with Prepuerin done in parallel with the Hogben test the former has shown a higher sensitivity. There have been three false positive results with Prepuerin tests in the s...
Radial haemolysis (RH) for assaying rubella antibody was studied in parallel tests with haemagglutination-inhibition (HAI) on 1102 sera from adult women. Simple to perform and economical in reagents, the RH test is as sensitive as the HAI test and is a useful method of screening antenatal and other sera for rubella immunity. It detects IgG but not IgM antibody.
BACKGROUND Older individuals often have a reduced immune response to influenza vaccination, which might be improved by administering a higher vaccine dose. We compared the immune response to two single doses of the AS03A-adjuvanted H5N1 pandemic vaccine (3.75 μg hemagglutinin of A/Vietnam/1194/2004) with that of two double vaccine doses (7.5 μg hemagglutinin) in adults aged ≥61 years. Here we r...
Synopsis A short history of the laboratory diagnosis of pregnancy is followed by an evaulation of four immunological methods of pregnancy diagnosis. The immunological methods based upon haemagglutination-inhibition and slide latex agglutination, gave a.lOO% accuracy. It is concluded that these techniques are suitable for the diagnosis of pregnancy after the 35th day following the last menstrual...
The passive haemagglutination and bentonite flocculation tests were compared for detecting plant viruses, using antibody-sensitized tanned red cells or bentonite particles. Parsnip yellow fleck, raspberry ringspot, turnip yellow mosaic, narcissus mosaic, potato X and tobacco rattle viruses were detected by both tests in purified preparations and, where studied, in crude plant extracts. The high...
199 human serum samples were examined for the presence of myxovirus parainfluenza 3 (mpi 3) haemagglutination inhibition (hi) antibodies. or tbe total male sera, 75% and female 70.52% had hi antibody titers of t:32 or greater. the percentage of positive samples increased according to the age grouping of the human beings. these results indicate that mpi 3 virus infection is widespread among the ...
The findings agree closely with those of Hobbs and Aw (1968). The isoamylase patterns of normal plasma and urine are similar, though the activity in urine is greater. Three bands are usually found in normal urine, the slower, and usually more distinct, band being the pancreatic component, and the faster those derived from salivary gland. The activities of these isoenzymes in plasma appear to be...
OBJECTIVE To determine whether the novel avian influenza H7N9 virus can transmit from person to person and its efficiency. DESIGN Epidemiological investigations conducted after a family cluster of two patients with avian H7N9 in March 2013. SETTING Wuxi, Eastern China. PARTICIPANTS Two patients, their close contacts, and relevant environments. Samples from the patients and environments we...
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