Results 261 to 270 of about 468,048 (310)
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American Journal of Veterinary Research, 1972
SUMMARY A relationship was shown to exist between agglutination titers and immunologic responses of cattle vaccinated with experimentally produced and commercially available Clostridium chauvoei-containing bacterins. The immunity of vaccinated and control cattle was challenged with C. chauvoei spore F.
M E, Macheak, K D, Claus, S E, Maloy
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SUMMARY A relationship was shown to exist between agglutination titers and immunologic responses of cattle vaccinated with experimentally produced and commercially available Clostridium chauvoei-containing bacterins. The immunity of vaccinated and control cattle was challenged with C. chauvoei spore F.
M E, Macheak, K D, Claus, S E, Maloy
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A comparison of methods for the potency test of rubella vaccine
Journal of Biological Standardization, 1977Forty titrations of HPV/77 rubella vaccine by the cytopathic effect microassay and 26 titrations by the tube interference test were performed. The variance analysis of the results demonstrated that the cytopathic effect microassay is a more reliable method for the potency test of rubella vaccine.
M, Rapicetta, R, Santoro, M E, Grandolfo
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A review of the effectiveness of vaccine potency control testing
International Journal for Parasitology, 2003The use of potency control testing is a valuable tool for testing the actual relative strength of manufactured assembly lots of vaccine. Biological-based manufacturing methods are inherently variable and potency testing is a tool to ensure lot-to-lot consistency of commercial vaccines.
David Scott, McVey +2 more
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A One-Dose Potency Test for Poliomyelitis Vaccine
The Journal of Immunology, 1965Summary Studies leading to the development and use of a one-dose potency test for poliomyelitis vaccine are described. The test is based on the measurement of neutralizing antibody in the serum of 6-week-old chickens that received one dose of a single dilution of vaccine.
R M, VANFRANK +5 more
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A Guinea Pig Potency Test for Adenovirus Vaccine
The Journal of Immunology, 1960Summary An assay for potency of adenovirus vaccine in guinea pigs based on the antigen extinction principle is described. The potency test values in repeat titrations were reproducible within a maximal 7-fold range. Further need for control with a standard reference vaccine is indicated. Potency values for a number of vaccines of diverse
L N, BINN, M R, HILLEMAN
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A potency test for live Newcastle disease vaccines
Journal of Biological Standardization, 1980The potency of live Newcastle disease vaccines was assessed by means of a multi-point challenge assay in vaccinated chicks. The assay was shown to give reproducible results and to be capable of detecting significant differences between the protective capacities of various vaccines.
D H, Thornton, C N, Hebert
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Relative mutagenic potencies determined in the micronucleus test
Journal of Theoretical Biology, 1978Abstract Data from two publications which include dose-response data were subject to model fitting using a Poisson distribution and a linear dose-response function. In Swiss mice, acetylaminofluorene was the weakest mutagen tested. Aflatoxin B 1 , 3-methylcholanthrene and dimethylnitrosamine were 66, 14, and 140 times as potent, respectively.
M A, Friedman +3 more
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Simple potency test for LH-RH preparations
Journal of Biological Standardization, 1980Proestrous rats, pretreated with fluphenazine dihydrochloride (FD) to block ovulation, were used to compare the ovulation-inducing activity of two synthetic LH-RH preparations; one was received from the National Institute for Biological Standards and Control labelled Gonadorelin acetate (77/596) and the other one was prepared in Ayerst Research ...
U K, Banik, M L, Givner
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A collaborative study on the potency testing of antirabies globulin
Journal of Biological Standardization, 1975Studies have shown that Rabies Immune Globulin, Human, used in combination with vaccine, is most effective when given within a relatively narrow dose range. A dosage of 20 International Units (i.u.) per kg gave satisfactory results while 10 i.u./kg appeared to be insufficient for early protection and 40 i.u./kg may have interfered with optimal antibody
E A, Fitzgerald +3 more
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Zentralblatt für Veterinärmedizin Reihe B, 2010
Summary Adult mice vaccinated with monovalent foot-and-mouth disease vaccines prepared according to the Frenkel method developed complement fixing antibodies demonstrable by a modified direct complement-fixation test, which was called “complement-consumption test” (CCT) in distinction from conventional CFT.
E, Traub, P, Thein, F, Kesting
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Summary Adult mice vaccinated with monovalent foot-and-mouth disease vaccines prepared according to the Frenkel method developed complement fixing antibodies demonstrable by a modified direct complement-fixation test, which was called “complement-consumption test” (CCT) in distinction from conventional CFT.
E, Traub, P, Thein, F, Kesting
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