At the component level, this diagram illustrates two different direct hemagglutination reactions, a positive viral hemagglutination assay (HA) reaction (above), and a negative viral HA reaction. (cdc.gov)
1:640) or a fourfold rise in the indirect haem-agglutination assay (IHA) titres in convalescent samples [ 2 , 7 , 12 ]. (biomedcentral.com)
Moreover, the capabilities of rAalb_CTL1 against microorganisms were measured by microbial-agglutination assay. (biomedcentral.com)
For haemagglutination assay, the result displayed no agglutination in all the testing concentration. (jatstech.org)
12. A sensitive hemagglutination assay of human chorionic gonadotropin in the diagnosis of ectopic pregnancy. (nih.gov)
Inhibition7
Measles hemagglutination inhibition (HI) antibody titer, widely used in clinical practice to simply and easily determine the measles immunity level has, in recent years, been increasingly replaced by measles IgG-antibody titer determined by enzyme-immunoassay (EIA). (unboundmedicine.com)
The Journal of the Japanese Association for Infectious Diseases JO - Kansenshogaku Zasshi VL - 83 IS - 5 N2 - Measles hemagglutination inhibition (HI) antibody titer, widely used in clinical practice to simply and easily determine the measles immunity level has, in recent years, been increasingly replaced by measles IgG-antibody titer determined by enzyme-immunoassay (EIA). (unboundmedicine.com)
Drs. Parkman, Meyer, and George L. Stewart, and Hope Hopps , Barbara Meyer, Robert D. Douglas, and Judith P. Hamilton were part of the team who developed a better blood test (rubella hemagglutination-inhibition immunity test) to screen people for rubellaantibodies in 1967. (nih.gov)
The rubella hemagglutination-inhibition immunity test was patented in 1971. (nih.gov)
Thus, the inhibition of agglutination demonstrates the presence of antibody and immunity. (nih.gov)
The rubella hemagglutination-inhibition immunity test was used to ascertain whether expectant mothers who have been exposed to rubella have cause for concern or are immune and at no risk. (nih.gov)
Haemagglutination Inhibition tests (HI tests) are used for viruses that can cause haemagglutination: the virus forms complexes with erythrocytes, resulting in a characteristic clotting. (gddiergezondheid.nl)
Antibody3
EIA-IgG antibody titer does not correlate with the protective level, similar to particle agglutination (PA) titer, because EIA measures different antibodies, including those unrelated to measles protection. (unboundmedicine.com)
Agglutination is a reaction in which particles (as red blood cells or bacteria) suspended in a liquid collect into clumps usually as a response to a specific antibody. (wikipedia.org)
The binding of an antibody with an antigen of the type that stimulated the formation of the antibody results in agglutination, precipitation, complement fixation, greater susceptibility to ingestion and destruction by phagocytes, or neutralization of an exotoxin. (biologyease.com)
Indirect1
Antimicrosomal antibodies (AMA) were measured by the indirect agglutination technique using artificial gelatin particle carriers sensitized with thyroid microsomal antigen and antithyroglobulin antibodies (ATA) by the tanned red cell hemagglutination technique. (e-cep.org)
ELISA4
Thus, the plate agglutination test can detect seroconversion a few days earlier than the HI and ELISA. (ufl.edu)
An HI or ELISA test is often used as a backup for suspicious plate agglutination reactors. (ufl.edu)
Haemagglutination and ELISA tests to detect antibodies to Newcastle disease (ND) were conducted on 950 poultry sera. (scirp.org)
In addition to ELISA, the GD Animal Health laboratory carries out other serological tests, such as various agglutination tests (HI tests), agar-gel immunodiffusion tests and serum neutralisation tests. (gddiergezondheid.nl)
Using this direct agglutination test, the agglutinating antibodies on the surface of the viral particles, react directly with antigens on the surface of the erythrocytes (RBCs), forming a lacey pattern, or visible clumps of particles, that can be seen accumulating in the bottom of the test tube, or well, as seen in the top reaction. (cdc.gov)
We describe a red cell agglutination test for the detection of antibodies to the SARS-CoV-2 receptor binding domain (RBD). (ox.ac.uk)
We show that the Haemagglutination Test ("HAT") has a sensitivity of 90% and specificity of 99% for detection of antibodies after a PCR diagnosed infection. (ox.ac.uk)
If specific antibodies against these viruses are present in the test sample, they attach to the virus and haemagglutination is prevented or inhibited. (gddiergezondheid.nl)
To test whether agglutination of erythrocytes from different animal species could be used to assess the receptor specificity of influenza A viruses, we determined the agglutinating activities of a range of virus strains, including those with known receptor specificities, using erythrocytes from seven animal species. (nih.gov)
Furthermore, pretreatment of erythrocytes with either influenza C virus or bovine coronavirus eliminates subsequent binding and agglutination by either coronaviruses or influenza C virus, whereas binding of influenza A virus remains intact. (mssm.edu)
In addition, hemagglutination by coronaviruses can be inhibited by pretreatment of erythrocytes with Arthrobacter ureafaciens or Clostridium perfringens neuraminidase or by addition of sialic acid-containing gangliosides. (mssm.edu)
Plasmodium falciparum-infected erythrocytes: agglutination by diverse Kenyan plasma is associated with severe disease and young host age. (ox.ac.uk)
Latex agglutination1
Histopathological examination was done for 9 pregnant women who tested positive by the latex agglutination test but we found no evidence of toxoplasma infection. (who.int)
The test employs the biological principle of hemagglutination, or red blood cell clumping. (nih.gov)
5. Evaluation of a direct agglutination latex particle test for human chorionic gonadotropin. (nih.gov)
The ECE-grown and cell culture-grown viruses were monitored for replication kinetics based on tissue culture infectious dose (TCID 50 ), Hemagglutination (HA) test and quantitative real time RT-PCR (qRT-PCR). (biomedcentral.com)
A positive direct Coombs' test, as well as, apparently, an aggregate hemagglutination test, is not a mandatory indicator of autoimmune hemolytic anemia. (blood-pressure-meds.com)
Agglutinin2
Gruber introduced the term agglutinin (from the Latin) for any substance that caused agglutination of cells. (wikipedia.org)
To exclude a cold agglutinin, the EDTA-anticoagulated blood was warmed to 37 o C for 30 minutes and re-assessed for agglutination, microscopically and on the analyzer. (eclinpath.com)
Tests6
Landsteiner's agglutination tests and his discovery of ABO blood groups was the start of the science of blood transfusion and serology which has made transfusion possible and safer. (wikipedia.org)
Red cell agglutination tests have a long history in blood typing, and general serology through linkage of reporter molecules to the red cell surface. (ox.ac.uk)
Agglutination Tests" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (wakehealth.edu)
This graph shows the total number of publications written about "Agglutination Tests" by people in this website by year, and whether "Agglutination Tests" was a major or minor topic of these publications. (wakehealth.edu)
Below are the most recent publications written about "Agglutination Tests" by people in Profiles. (wakehealth.edu)
If agglutination occurs, this indicates that the donor and recipient blood types are incompatible. (wikipedia.org)
A negative reaction, as seen on the bottom, reveals that there are no surface antigens present on the RBCs, which would bond to the virions, thereby, inducing an agglutination reaction, hence no hemagglutination occurs. (cdc.gov)
Reaction1
Austrian physician Karl Landsteiner found another important practical application of the agglutination reaction in 1900. (wikipedia.org)
Commonly1
Agglutination is commonly used as a method of identifying specific bacterial antigens and the identity of such bacteria, and therefore is an important technique in diagnosis. (wikipedia.org)
Human1
Haemagglutination was performed against all human blood groups while free radical scavenging activity was performed to investigate the antioxidant potential of A. tortuosum. (jatstech.org)
Sodium1
To determine if the agglutination was EDTA-dependent, a fresh blood sample was drawn from the cat and placed into a vacutainer tube containing 3.8% sodium citrate. (eclinpath.com)
Biochemical1
7 Despite the anemia, artifactual agglutination was suspected in this case due to the lack of other clinical, biochemical or morphologic indicators of in vivo agglutination from an immune-mediated anemia, such as spherocytosis (albeit difficult to recognize and confirm in cats), ghost cells (if there was an intravascular component to a hemolytic anemia), and bilirubinemia. (eclinpath.com)
An aliquot of the citrate-anticoagulated blood was then transferred to an EDTA-containing tube and a smear of this mixed sample showed agglutination (Figure 2). (eclinpath.com)
Blood cells2
Hemagglutination is the process by which red blood cells agglutinate, meaning clump or clog. (wikipedia.org)
To our knowledge, there has only been one report of EDTA-dependent hemagglutination in animals, which was also a cat from our institution. (eclinpath.com)
Sugar1
were examined by Real-Time qRT-PCR and the biological functions of the recombined mature Aalb_CTL1 were tested by hemagglutination and sugar inhibitory agglutination assays. (biomedcentral.com)
Specific1
Two bacteriologists, Herbert Edward Durham (-1945) and Max von Gruber (1853-1927), discovered specific agglutination in 1896. (wikipedia.org)
Study1
In the current study, the antimicrobial, phytotoxic, haemagglutination and antioxidant potential of crude methanolic extract (Crd. (jatstech.org)
Case1
In this case, additional testing revealed that it was EDTA-dependent pseudo-agglutination (see below). (eclinpath.com)