Publications

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brucella abortus in fresh cream and cream products. 19684297595
[nucleic acid metabolism of rat spleen during synthesis of antibodies against brucella abortus]. 19684387857
[influence of endoxan (cyclophosphamide) and 6-mercaptopurine on nucleic acid metabolism of rat spleen during synthesis of antibodies against brucella abortus]. 19684387858
lymphoepithelial tissues of the intestine and differentiation of antibody production.the antibody response of young rabbits to the injection of killed brucella abortus was abolished by prior extirpation of intestinal lymphoepithelial tissues combined with lethal xirradiation and reconstitution with rabbit fetal liver cells. extirpative surgery alone, like lethal x-irradiation and reconstitution without surgery, did not abolish this response. intestinal lymphoepithelial tissues of rabbits apparently play a central lymphoid function and are responsible for the differentiation of t ...19684173040
antibody and immunoglobulin production at the cellular level in bursectomized-irradiated chickens.the effect of bursectomy combined with sublethal x-irradiation in the newly hatched chicken on the immunoglobulin and antibody producing capacity in later life was investigated. the previous findings of a significant incidence of hypogammaglobulinemia in such animals were confirmed. spleen cells from severely hypogammaglobulinemic animals synthesized and secreted little or no immunoglobulin. such spleen lymphoid cells contained fewer immunoglobulin antigenic determinants than spleen cells from i ...19694181832
a preliminary study of the development of 19s and 7s immunoglobulins in sera of two sheep vaccinated with brucella abortus, strain 19.the pattern of antibody response to vaccination with brucella abortus, strain 19, was studied in two sheep. agglutinative activity was detected by the third and fifth days and complement - fixing activity by the fifth and seventh days post-vaccination. density gradient centrifugation and deae cellulose column chromatography showed the 19s antibody developed first, followed soon after by 7s antibody. the former had disappeared by the 25th day but the latter persisted longer in both sheep. a small ...19694237299
fate of brucella abortus in neonatally thymectomized rats. 19694976513
antibody response to brucella abortus. 19694977407
on the fatty acids of brucella abortus and brucella melitensis. 19694978225
the chemical basis of the virulence of brucella abortus. ix. the increased immunogenicity of br. abortus grown in media which enhance its ability for survival within bovine phagocytes. 19694978351
abortion in sheep associated with brucella abortus infection. 19694978562
the second international standard for anti-brucella abortus serum.in 1965, the who expert committee on biological standardization (1966) noted that stocks of the international standard for anti-brucella abortus serum were almost exhausted and requested the central veterinary laboratory, weybridge, england, to examine a quantity of serum offered by that laboratory for its suitability to serve as a replacement, and to arrange a collaborative assay. after being distributed into ampoules and freeze-dried, the serum was assayed against the international standard by ...19694978932
distribution of chromate-labeled brucella abortus endoxin in tolerant mice.endotoxin tolerance as manifested by a lesser degree of hypoferremia was demonstrated in mice when both pretreatment (10 mug per injection) and challenge (100 mug) does of brucella abortus endotoxin were administered intraperitoneally. qualitative and quantitative studies on the distribution of chromate-labeled endotoxin in normal mice revealed that the endotoxin localized predominately in the liver and hypoferremia could be related to a high uptake of endotoxin by this organ. in tolerant mice, ...19694974396
[the "free" lipids of brucella abortus bang. concerning the neutral lipids]. 19694979663
ultrastructure of brucella abortus l-forms induced by penicillin in a liquid and in a semisolid medium.brucella abortus l-forms were induced by 5.0 or 10.0 mug of penicillin/ml in a broth medium containing 0.3 m sucrose, and in a semisolid medium containing 10% calf serum and 20.0, 40.0, or 60.0 mug of penicillin/ml. after 96 hr of incubation, l-forms of various sizes and shapes were observed. basic structures of the l-forms were similar whether induced in liquid or semisolid medium. l-forms had two "unit" membranes, each consisting of two outer dense layers separated by a lucent layer. a few lar ...19694980069
the isolation of brucella abortus from a waterbuck (kobus ellipsiprymnus). 19694980299
increased host resistance to infection elicited by lipopolysaccharides from brucella abortus. 19694980494
[interferences by coxiella burneti infection in the mouse with non-specific resistance or immunity against the brucella abortus test]. 19694982515
[demonstration of a compound of acid nature bearing antigenic specificity in brucella abortus in the smooth and rough phases]. 19694983505
studies of experimental brucellosis. brucella abortus infection in the male guinea pig and effect of sensitization on various organs. 19694983853
[a case of canine brucellosis due to brucella abortus]. 19694985208
[phenotypic variation of the morphology of brucella abortus colonies]. 19694984757
use of mitomycin c to distinguish brucella abortus field strains from the vaccinal brucella abortus strain 19.field strains of brucella abortus were resistant to mitomycin c, whereas strain 19 was sensitive; therefore, the antibiotic was used to distinguish b. abortus strain 19 from other strains.19694984768
experimental study on the protective antigen derived from the vaccine strain brucella abortus ba-19. 19694985512
[isolation of brucella abortus from the organs of mink]. 19694985671
persistence of brucella abortus, strain 19 infection in immunized cattle. 19694993565
isolation of brucella abortus from vaginal mucus samples. 19694989379
antibody elicited by brucella abortus antigen in vitro: prolonged production by cell suspensions. 19695765459
antigenic relationship of brucella ovis to brucella abortus and brucella melitensis using the complement fixation test. 19695005098
[experimental brucellosis in cattle. ii. distribution of brucella abortus 6 weeks after parturition and 3 to 5 and one-half months after experimental infection]. 19705003298
[experimental bovine brucellosis. 3. the vaginal excretion of brucella abortus before and after parturition]. 19705003299
illness following accidental self-inoculation of brucella abortus strain 19 vaccine. 19704991107
immuno-electrophoretic characterization of brucella abortus antigenic strain 99. ii. chemical extracts. 19704991969
reversion of rough (r) to smooth (s) forms in brucella abortus. ii. comparison of the sii form obtained after reversion with the initial si form, as well as ri and rii rough variants. 19704992358
differentiation of the serologicl response to yersinia enterocolitica and brucella abortus in cattle.the serological responses of cattle to inoculation with brucella abortus and yersinia enterocolitica type ix were compared. complete cross-reactions were found in serum agglutination, antiglobulin, complement fixation and rose bengal plate tests. the cross-reaction between br. abortus and y. enterocolitica ix was confirmed by immunodiffusion tests. although antibodies specific for each organism could also be detected by immunodiffusion tests with high titre rabbit or bovine sera, these tests wer ...19704992575
sero-chemical characterization of a soluble antigen extracted from brucella abortus. 19704993699
[studies on the complement fixation test in brucellosis. iv. correlation between titers by agglutination and by complement fixation determined with brucella abortus antigens in human and inoculated rabbits' sera]. 19704999678
transfer of antibody production with cells from bursa of fabricius.f(1) hybrid chicks isogenic for the strong b histocompatibility locus and for most weak h-loci were x-irradiated on day 1 after hatching, injected intraperitoneally on day 2 with dispersed cells of bursa, spleen, or thymus from 4- or 10-wk-old f(1) hybrid donors, and immediately challenged by the same route with either brucella abortus, sheep erythrocytes, or a mixture of both together. the agglutinin titers were measured in sera obtained 1 wk later. with 4-wk-old donors, a greater primary respo ...19704994444
the proliferative and anamnestic antibody response of rabbit lymphoid cells in vitro. ii. requirement for adherent and nonadherent cells of the responses to particulate antigens in spleen cell cultures.both primary and secondary responses to sheep erythrocytes and to brucella abortus antigen have been obtained in cultures of dispersed rabbit spleen cells. removal of adherent cells by repeated incubation of spleen cells on absorbent cotton diminished the ability of the spleen cell suspensions to give secondary as well as primary responses in vitro. when comparing cultures made in dishes and in tubes, the loss of responsiveness after incubation on cotton was much more evident in the dish culture ...19704986217
trimethoprim-sulphamethoxazole in enteric fevers.clinical improvement was rapid in all 13 patients with enteric fever and one with brucella abortus infection treated with trimethoprim-sulphamethoxazole. there were no side-effects of the treatment and it was found easy to administer to toxic and delirious patients.19704989044
agglutinin response of rabbits to combined pasteurella tularensis-brucella abortus vaccination.a schedule was developed for the simultaneous production of a pasteurella tularensis-brucella abortus antiserum in rabbits. three doses of 10(8) viable p. tularensis lvs organisms were given intravenously at weekly intervals. one day prior to the final dose of p. tularensis, the rabbits received 10(9) viable cells of b. abortus strain 19 intravenously. the use of live vaccines, administered in this sequence, resulted in high agglutinin titers within 3 weeks. the maximal agglutinin titer to eithe ...19704985429
endotoxin-containing preparations of brucella abortus: chemical studies. 19704984309
endotoxin-containing preparations of brucella abortus: biological studies. 19704984310
[brucellosis caused by brucella abortus in humans in france. a survey at indre-et-loire]. 19704316963
[ratio of serum antibodies in the immune response to brucella abortus]. 19704191371
reversion of rough (r) to smooth (s) forms in brucella abortus. i. the manner of manifestation of r-s reversion. 19704099090
some structural and biological properties of brucella endotoxin.hot phenol-water extraction of smooth brucella abortus and b. melitensis cells yielded a toxic fraction which was recovered from the phenol phase (fraction 5). chemically, fractions 5 from both brucella species were lipid-carbohydrate-protein-2 keto-3-deoxyoctulosonic acid complexes which were stable to heat and resistant to pronase digestion. electron micrographs of the brucella toxins were morphologically indistinguishable from those of enterobacterial endotoxins. biologically, brucella toxins ...197016557710
comparison of chemical components of cell walls of brucella abortus strains of low and high virulence.amino acid, carbohydrate, and lipid components of cell walls of brucella abortus strain 19a (low virulence) and strain 2308 (high virulence) were compared by thin layer chromatography (tlc) and by use of an amino acid analyzer. a total of 15 amino acids were detected by both chromatographic methods. each amino acid was present in greater amounts in strain 2308 than in strain 19a when equal amounts of hydrolysates of cell wall and endotoxin-containing preparations were analyzed. a component with ...197016557825
interferon induction and resistance to virus infection in mice infected with brucella abortus.induction of circulating interferon and protection against vaccinia virus infection in mice by injection of brucella abortus were studied. it was demonstrated that morphologically intact brucellae (either live or killed by heat or exposure to naoh) induce high and prolonged levels of circulating interferon in mice. in each instance, the inducing principle remained associated with the bacterial particle. disruption of brucellae by mechanical means destroyed the interferon-inducing capacity. howev ...197016557902
blocking serum lysis of brucella abortus by hyperimmune rabbit immunoglubulin a. 19714103920
the hygiene and marketing of fresh cream as assessed by the methylene blue test. a report by a working party to the director of the public health laboratory service.the hygiene and marketing of fresh cream in england and wales was investigated by a working party of the public health laboratory service (phls) between 1 october 1968 and 31 july 1969. thirty-one cream-producing dairies were visited and observations made in the light of the code of practice published by the milk and milk products technical advisory committee of the ministry of agriculture, fisheries and food, and the scottish home and health department. suggestions are made in this report to st ...19714326247
[neutral lipids of brucella abortus]. 19714329697
[comparative chemical studies on the polysaccharide component of the somatic antigens of brucella abortus s19 and brucella melitensis 16m]. 19714400726
specific secondary biological properties of purified rabbit immunoglobulin m and immunoglobulin g antibodies to brucella abortus and bordetella pertussis.rabbit immunoglobulin (ig)m and igg antibodies to brucella abortus and bordetella pertussis were isolated as purified products and their specific secondary biological activities were compared. igm antibodies were found to be more active than igg proteins in inducing agglutination and sensitization of b. abortus for the complement-dependent bactericidal effect and in inhibiting b. pertussis-induced lymphocytosis in the mouse. igm and igg antibodies were found to be equally effective in inducing a ...19714343404
[immunostimulating effect of an imidotiiazole in the immunization of mice against brucella abortus infection]. 19714995369
the use of various extracts of brucella abortus for haemagglutination test in brucellosis. 19714998500
a purified killed brucella abortus vaccine. 19714998841
immunisation of laboratory animals and cattle with non-agglutinogenic extracts of brucella abortus strain 45-20. 19714998854
electron microscopy of tissue culture cells infected with brucella abortus.thin sections of hamster kidney tissue cultures were examined by electron microscopy over a 7-day period after infection with brucella abortus 3183. numerous bacteria and structures resembling l-forms were present both intracellularly and extracellularly after the first 24 hr of infection. most intracellular microorganisms were enclosed by a cytoplasmic membrane, but in a few instances no limiting membrane was detected. after 4 to 7 days, fewer microorganisms were present, and most normal-appear ...19715001204
microagglutination procedures for febrile agglutination tests.febrile agglutination tests were done by using as antigens brucella abortus, salmonella group d, proteus ox19, and pasteurella tularensis. comparison of results from 23 sera showed that the microtechnique, rapid slide, and test tube methods gave similar titers, although those from the microtechnique were generally higher. the sensitivity of the microtechnique depended upon the concentration of antigen, and, to obtain reproducible results, the optimal concentration of antigens had to be determine ...19715002142
the occurrence of agglutinating, complement-fixing, and incomplete antibodies to brucella abortus in milk, and their relationship to the milk ring test. 19714993976
antibody response, delayed hypersensitivity, and immunity in guinea pigs induced by smooth and rough strains of brucella abortus. 19715004116
[lysogenic variations of brucella abortus. ii. variations obtained in vitro]. 19715005071
[vaccination of cows with live dessau brucella abortus vaccine]. 19715104381
recall of acquired cellular resistance in mice by antigens from killed brucella.mice infected with brucella abortus 19 were challenged intravenously with listeria monocytogenes. spleen assays to determine the number of viable listeria cells present revealed that these mice were highly resistant to listeria when challenged on day 17 of the brucella infection. resistance was absent in mice challenged on the 5th day and was declining in mice challenged on the 33rd day. resistance could not be detected by day 49 of the brucella infection but could be recalled by the injection o ...19724632467
the use of brucella abortus 45-20 adjuvant vaccine as a diagnostic aid in the brucellosis eradication campaign in papua new guinea. 19724651121
ontogeny of bursal function in chicken. 3. immunocompletent cell for humoral immunity.to study the occurrence of immunocompetent cells directly responsible for antibody production, cells from yolk sac, embryonic liver, bursa of fabricius, bone marrow, spleen, or thymus were injected together with srbc and brucella abortus into 4-day old cyclophosphamide-treated chicks. a second stimulation was given 4 days later, and samples taken 4 days thereafter were used for antibody titrations. during ontogeny, immunocompetent cells appeared in significant numbers first in the spleen for ant ...19724403475
interferon production linked to toxicity of polyriboinosinic acid-polyribocytidylic acid.different procedures have been used in attempts to increase the production of interferon by polyriboinosinic acid-polyribocytidylic acid (poly [ri].poly [rc]) in mice: simultaneous injection of lead acetate, cycloheximide, or actinomycin d and prior injection of freund's adjuvant, chlorite-oxidized oxyamylose (coam), endotoxin, or brucella abortus. in the experimental conditions tested, lead acetate, cycloheximide, freund's adjuvant, and coam brought about a parallel increase in interferon produ ...19724564891
characterization of brucella abortus strain 19. 19724622856
brucella abortus recovery from milk samples. 19724623756
subclinical brucella infection in man.much subclinical infection with brucella abortus affects the dairy farming community, slaughterhouse workers, and veterinary surgeons. high titres of antibody to b. abortus by the saline agglutination, antihuman globulin, or complement fixation test may be shown in subjects from the first two groups and generally there are no symptoms or signs of brucella infection whatever. veterinary surgeons are prone to subclinical infection and young practitioners frequently display high titres against the ...19724625113
the use of laboratory animals in the potency test of brucella abortus s.19 vaccine. response of guinea-pigs to graduated doses of vaccine and challenge. 19724625200
brucella melitensis rev. 1 and brucella abortus 45-20 vaccines in goats: immunity. 19724626469
the mechanism of immunostimulation induced by inactivated brucella abortus. 19724626522
the effect of passively acquired antibodies to brucella abortus on the immune response to strain 19 vaccine. 19724627403
the immunization of guinea-pigs and mice with a whole-culture extract of a smooth and a rough strain of brucella abortus. 19724628447
the chemical basis of the virulence of brucella abortus. x. a surface virulence factor which facilitates intracellular growth of brucella abortus in bovine phagocytes. 19724630410
a case of abortion consequent upon infection with brucella abortus biotype 2.the case described here is that of young primigravida in normal health who, on serological evidence, contracted acute brucellosis, and subsequently aborted spontaneously, br. abortus biotype 2 being isolated from the amniotic fluid.19724630417
mechanism of resistance to virus challenge in mice infected with brucella abortus. 19724343370
the relationship of brucella abortus agglutinogenic antigens to the receptor sites for tbilisi phage. 19724111734
[on the bactericidal power of samples of human blood against strains of brucella melitensis and brucella abortus]. 19724205694
[lysogenic variants of brucella abortus. 3. a study of the allergic reaction in experimentally infected laboratory animals]. 19724197603
a serological investigation on adult cattle vaccinated with brucella abortus strain 19. 19734197922
abortion associated with brucella abortus (biotype 1) in the t.b. mare. 19734198441
serological cross-reactions between different brucella species and yersinia enterocolitica. biological and chemical investigations of lipopolysaccharides from brucella abortus and yersinia enterocolitica type ix. 19734199585
the survival of brucella abortus in milk and milk products. 19734200287
stimulation of anti-brucella vaccination in mice by tetramisole, a phenyl-imidothiazole salt.the effect of tetramisole (hydrochloride of racemic 2, 3, 5, 6,-tetrahydro-6-phenyl-imidazo [2, 1-b] thiazole) on immunization was investigated in mice vaccinated by killed brucella melitensis cells suspended in incomplete adjuvant. immunity to brucella abortus challenge was estimated by the reduction in number of b. abortus colonies per gram of spleen in those mice which escaped full immunization and also by calculation of mean infective doses for each group of mice. all tetramisole treatments ...19734200541
immune response to a syngeneic rat tumour: evolution of serum cytotoxicity and blockade. 19734202457
the immuno-diffusion method for the identification of cattle vaccinated with brucella abortus strain 45-20. 19734202541
the sensitivity of brucella abortus to chemotherapeutic agents. 19734202898
assessment of fluorescent antibody absorption procedures for differentiation of the serological response to yersinia enterocolitica serotype ix and brucella abortus in cattle. 19734203694
the incidence of the various biotypes of brucella abortus in cattle in the south-west of scotland. 19734204008
[increase in the immunostimulation properties of inactivated brucella abortus b 19 by simultaneous use of a specific immune serum]. 19734197497
the direct fluorescent antibody test for detection of brucella abortus in bovine abortion material.the direct fluorescent antibody test was assessed for detection of brucella abortus in bovine abortion material. br. abortus organisms could be readily detected as characteristic intra-cellular clumps, in smears stained with fluorescent antibody. counterstaining with evans blue was necessary to suppress tissue auto-fluorescence. the method was specific and enabled brucella infection to be differentiated, inter alia, from q-fever infection.19734121013
serological cross-reactions between different brucella species and yersinia enterocolitica. immunochemical studies on phenol-water extracted lipopolysaccharides from brucella abortus and yersinia enterocolitica type ix. 19734125692
serological cross-reactions between different brucella species and yersinia enterocolitica. agglutinating activity of 19 s and 7 s antibodies aginst somatic antigen of brucella abortus and yersinia enterocolitica type ix. 19734128117
evaluation of various media and the use of soil infusion in the production of brucella abortus antigen.brucella abortus (adri 413) was grown on various synthetic, commercial, laboratory-formulated and soil infusion-supplemented agar media. of 22 media tested, three soil infusion-supplemented media and a serum dextrose agar yielded more brucella antigen than the meat infusion agar, the standard reference medium. results from agglutination and stability tests indicated that antigens produced from most of the laboratory-formulated media and the soil infusion-supplemented agars compared favourably wi ...19734265551
the utilization of brucella abortus culturing and biotyping results in the epizootiologic investigation of bovine brucellosis. 19734283853
[greater attenuation of the virulence of brucella abortus 19 with preservation of its immunogenicity]. 19734208623
the rose bengal plate agglutination test in dairy cattle in zambia vaccinated over age with strain 19 brucella abortus. 19734213481
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