A total of 70 224 blood donations were tested at three Scottish blood transfusion centres for hepatitis B surface antigen /HBsAg) by an economical haemagglutination-inhibition method (E.H.A.I.) and the results compared with those of counterelectrophoresis (C.E.P.). A further 4086 donations were tested using the Wellcome turkey cell haemagglutination test, C.E.P., and E.H.A.I.E.H.A.I. was also c...

PAWESKA, J.T. , BARNARD, B.J.H. & WILLIAMS, R. 1995. The use of sucrose-acetone-extracted Rift Valley fever virus antigen derived from cell culture in an indirect enzyme-linked immunosorbent assay and haemagglutination-inhibition test. Onderstepoort Journal of Veterinary Research, 62:227-233 A sucrose-acetone-extracted , Madin-Darby-bovine-kidney (MDBK)-derived Rift Valley fever virus (RVFV) an...

The dengue viruses belong to the family Flaviviridae, named after the prototype yellow fever virus, which has played a leading role in the development of the science of medical virology. Other important viruses in this family are the Japanese encephalitis virus, St. Louis encephalitis virus and tick-borne encephalitis virus. All these viruses are arthropod-borne viruses and are important causes...

The exact nature of the "rheumatoid factor" is unknown, but it appears to be an antibody-like substance composed of a gamma globulin complex of high molecular weight. Two groups of tests have been used to detect it: the haemagglutination test and the latex-fixation or Bentonite flocculation test. In the first group the indicator consists of sheep red cells with rabbit anti-sheep haemolysin as t...

humoral immune response of vaccine-i (supermatent from sonicated sporulated oocyst), vaccine –ii (sediment from sonicated sporulated oocyst) and vaccine –iii (un-sonicated sporulated oocyst) against conccidiosis in chickens was determined by indirect haemagglutination (iha) test. iha antibody titre was significantly higher (p

Antibodies against snake venom or antivenom potency are assayed quantitatively by in-vivo neutralization test in mice, which requires large number of laboratory animals. In potency assays of biological substances such as antivenoms, it is highly desirable to avoid suffering and death of animals by substituting in-vivo method with in-vitro methods, provided such methods measure life-saving capab...

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...

BACKGROUND After alleged stop of transmission of schistosomiasis and further down the line in post elimination settings, sensitive tools are required to monitor infection status to prevent potential re-emergence. In Rahala, where transmission cycle of Schistosoma haematobium is interrupted since 2004 but where 30% of snails are still infected by S. bovis, potential human S. bovis infection can'...