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a preliminary investigation of the effects of salinity on the bacterial flora of the tay estuary.two features of the effects of salinity on the bacterial flora of the tay estuary are considered. first the effect of salinity on the size and species composition of the resident microflora at various sites within the estuary. the second part is concerned with data obtained from laboratory experiments designed to study the effects of subjecting marine and freshwater bacteria, isolated from the tay, to salt stress.19751208501
studies on the so-called nag vibrios. 19751213771
[nutrition and taxonomy of "enterobacteriaceae" and related bacteria. iii. nutritional characters and differentiation of the taxonomic groups (author's transl)].a batch of 186 strains belonging to the families enterobacteriaceae or vibrionaceae has been studied by determination, for each strain, of the "versatility" towards 146 organic substrates tested as sole source of carbon and energy. this study allowed to work out a classification of these strains into the 32 classes which have been previously described. in the present paper the nutritional characters of these classes are reported. on the basis of these characters, the 32 classes may be regrouped ...19751217784
[incompatibility grouping of r factor detected from aeromonas hydrophila and a. salmonicida]. 19751240266
[demonstration of specific antibodies in sera of patients with infections caused by aeromonas hydrophila (author's transl)].according to the formation of specific antibodies against aeromonas hydrophilia in patients with infections caused by this microorganism the sera of two patients of different clinical picture were investigated. among the antibodies there could be demonstrated the antihaemolysins against the haemolysin of the monolgous strain, agglutinins against the o-antigen and praecipitins against soluble antigens. the special problems of the technics are described. the results are discussed and interpreted.19751240712
meningitis due to aeromonas hydrophila.a case of meningitis caused by aeromonas hydrophila is reported. the infection complicated an otherwise successful frontotemporal craniotomy. survey of the literature revealed that human infections due to this organism are relatively uncommon, and its causal relationship in meningitis has not been previously reported. a. hydrophila is known to cause bacteremia in patients under treatment with immunosuppresive agents. we report meningitis with bacteremia, caused by this organism, in an immunologi ...19761254706
blood changes in brook trout induced by infection with aeromonas salmonicida.furunculosis was induced in brook trout, salvelinus fontinalis, by experimental inoculation with aeromonas salmonicida. total protein, hemoglobin, sialic acid, fatty acids, triglycerides, cholesterol, inorganic-phosphorus, acid-soluble phosphorus, and lipid-phosphorus decreased in the blood of the infected fish while amino acids, urea, total creatinine, ammonia, and glucose increased. pyruvic acid, lactic acid, and ascorbic acid values showed no significant change.19761255917
a septicaemic disease of east african snakes associated with enterobacteriaceae.a bacterial epizootic disease of snakes at a snake farm in kenya is described. the condition shows characteristic clinical signs and post mortem lesions and is characterized by a bacteraemia and septicaemia. the mortality rate is high and newly captured snakes die within a few weeks. attempted control of the disease is discussed briefly and attention is drawn to the significance of such a condition in a commercial enterprise.19761265824
[study of the flagellins of microorganisms of the virbio and aeromonas genera]. 19761266454
enterotoxin, haemolysin and cytotoxic protein in aeromonas hydrophila from human infections.three different toxins were detected in culture supernatants from 11 strains of aeromonas hydrophila. the haemolysin and the cytotoxic factor(s) interferred in the three test systems for enterotoxin, but they could be neutralized by heating at 56 degrees c or by specific antihaemolysin.19761274594
inducible oxacillin-hydrolyzing penicillinase in aeromonas hydrophila isolated from fish.an inducible penicillinase was shown to be present in a strain of aeromonas hydrophila subsp. hydrophila isolated from freshwater fish. enzyme induction was observed with benzylpenicillin or 6-aminopenicillanic acid, and the enzyme was cell bound. the penicillinase was purified 50-fold from a crude cell extract. the molecular weight was estimated to be 23,000 by gel filtration. the ph and temperature optima for the enzyme activity were 8.0 and 35 degrees c, respectively. the penicillinase showed ...19761049517
less frequently reported gram-negative fermentative rods.the clinical significance and distinguishing characteristics of less frequently reported gram-negative fermentative rods (pasteurella, yersinia, vibrio, aeromonas and plesiomonas, enterobacter agglomerans, and chromobacterium) are described. increased awareness of these organisms, a knowledge of possible sites in which they cause infection, and identification criteria which will separate them from similar bacteria will prepare the clinical microbiologist for the isolation and identification of t ...1976769548
reductive microbial conversion of anthracycline antibiotics.reductive conversion of several anthracycline glycosides to their 7-deoxyaglycones occurs during their microaerophilic incubation with strains of aeromonas hydrophila, citrobacter freundii, and escherichia coli. further, extracts of microaerophilically grown a. hydrophilia catalyze dpnh-dependent reductive conversion of the same compounds. anthracycline substrates cleaved by both whole cells and by the cell-free system include steffimycin, steffimycin b, nogalamycin, cinerubin a, and daunomycin. ...1976786368
[the detection of aeromonads of the "hydrophila-punctata-group" within the hygienic control of drinking water (author's transl)].the first part brings a retrospective analysis of bacteriological water examinations at single wells at which within a new one year examination period e. coli, coliforms and colony count determinations were performed and in addition the water samples were examined regarding aeromonas of the "hydrophila-punctata-group". the single wells have been divided in five groups because of the pre-testing and reexamination results and because of the local circumstances. they are summarized in the tables 1- ...1976788410
the bactericidal action of benzoic acid and sodium acetate on the gram-negative flora of dialysis fluid.benzoic acid in concentrations from 0.18 per cent and upwards exerted a bactericidal action on the gram-negative flora of dialysis fluid at ph 4.75 in vitro. at a concentration of 0.32 per cent, a reduction of 10(5) was obtained with 24 hours. sulphonamide resistance did not affect the bactericidal action. the killing effect was hardly more than directly proportional to the concentration of benzoic acid. increasing inoculum decreased the bactericidal effect. therefore, benbzoic acid should not b ...1976788461
starvation effects on escherichia coli and aquatic bacterial responses to nutrient addition and secondary warming stresses.a gram-negative polar flagellated rod, isolated from a colorado mountain stream and considered to be an aeromonas sp., a mixed aquatic microbial population, and a culture of escherichia coli were starved to determine their responses to the short-term presence of nutrients and mild warming stress (49.5 c for 2 min) in relation to starvation time. at the beginning of the starvation period, the aeromonas isolate was extremely sensitive to the secondary warming stress. this response was markedly dim ...1976793521
[immunofluorescence technique applied at serological diagnosis of the respiratory tract infections from gram-negatives bacteria (author's transl)].the immunofluorescence indirect technique was evaluated for detecting specificities, ig classes, and levels of serum and sputum antibodies against bacteria isolated from sputa in patients with broncho-pulmonary infections. results obtained with the fa method were compared with those obtained with a passive haemagglutination test. the former method gave much more reliable results than the latter. by using fa indirect method it was possible to assess pathogenicity of baceterial strains isolated fr ...1976797326
[aeromonads--taxonomy and nomenclature]. 1976799450
a taxonomic study of the aeromonas hydrophila-aeromonas punctata group.a total of 203 characters has been determined for 68 strains of aeromonas belonging to the aeromonas hydrophila-a. punctata group. the results have been subjected to computer analysis using the coefficient of jaccard-sneath and the strains clustered by the method of aggregation according to the variance. the 68 strains can be divided into two well-segregated classes on the basis of 59 variable characters, of which seven are of diagnostic value. the two classes are considered as two separate spec ...1976932684
necrosis and bacterial infection in channel catfish (ictalurus punctatus) following hypoxia.apparently sterile lesions developed in the skin and musculature of channel catfish (ictalurus punctatus) six days after fish were severely stressed by an oxygen depletion associated with a phytoplankton die-off in an 8.9 ha pond. lesions were characterized by hemorrhage and necrosis. aeromonas hydrophila was isolated from either the lesions ot internal organs of all moribund fish necropsied the day after lesions were first found. as the water quality improved the health of the fish improved. wa ...1976933317
fever: effect of drug-induced antipyresis on survival.to determine whether the prevention of fever affects the survival of an animal infected with pathogenic bacteria, lizards (dipsosaurus dorsalis) were infected with live aeromonas hydrophila and received varying doses of sodium salicylate, an antipyretic drug. twelve lizards received identical injections of bacteria along with a nontoxic dose of sodium salicylate; five animals increased their mean body temperature at least 0.6 degrees c and survived the week, whereas seven did not develop a fever ...1976935867
a survey of aquarium fishes, their foods, and environmental water for salmonellae.the presence of salmonellae in the pet shop environment, fishes, aquarium water, and in a variety of commercially prepared and natural fish foods was determined. salmonellosis attributed to turtles purchased from pet shops has been responsible for an estimated 280,000 human cases annually in the united states. the possibility that aquarium fishes, or their food and aquatic habitat might also serve as sources of human salmonellosis was deemed worthy of clarification. results of the present survey ...1976940312
[sensitivity of aeromonas punctata to antibiotics]. 1976948845
[disc-electrophoresis of the protein spectra of representatives of the genera aeromonas, comamonas and pseudomonas]. 1976961260
[antigenic structure of non-agglutinating vibrios and bacteria of the genus aeromonas].the authors carried out a comparative study of the antigenic structure of nonagglutinating vibrios and the respresentatives of aeromonas genus. a number of common antigens (some of which were of protein origin) were revealed in the so-called enterotoxins of nonaggultinating vibrios and aeromonas and also in the cytoplasm and ribosomes of these strains. "enterotoxin" of aeromona s strain contained the factor of vascular permeability. the serum to "enterotoxin" of the aeromonas strain neutralized ...1976961271
fever and antipyresis in the lizard dipsosaurus dorsalis.lizards (dipsosaurus dorsalis) were placed in a desertlike environment in which the ambient temperature (ta) at night (1800-0600 h) was 12 degrees c and the day (0600-1800 h) ta was between 30 and 55 degrees c depending on the location within the chamber. when dead aeromonas hydrophila (4 x 10(9) organisms) was injected into nine lizards, an elevation in body temperature (tb) of 2.7 degrees c was observed during the same day. on the day after bacterial injection the lizards' body temperatures av ...1976961860
effect of aeromonas salmonicida (furunculosis) infection on the incorporation of [1-14c]acetate into lipids of trout liver.[1-(14)c]acetate is incorporated into lipids more rapidly by liver from aeromonas salmonicida-infected trout than by normal trout liver, both in vitro and in vivo. the increase was, in general, about twofold to less than threefold.1976965100
ultrastructural examination of aeromonas cultured in the presence of organic lead.aeromonas sp. will methylate trimethyl lead acetate (me3pboac) to volatile tetramethyl lead (me4pb). examination of cultures grown in the presence of me3pboac revealed no major irregularities between cells of the treated and untreated cultures. some cells, however, showed evidence that intracytoplasmic materials had been leached from the cells. the lead-treated cells were interpreted to contain lead ions on the basis of energy-dispersive x-ray analysis.1976984840
[taxonomic importance of fermentation balances of enterobacteriaceae (author's transl)].fermentation balances have been studied on 66 strains from 9 taxa of enterobacteriaceae. in addition, 6 strains of aeromonas have been investigated. among these fermentation balances, 7 types could be distinguished. it was shown, that the taxa of enterobacteriaceae differed with respect to the balance types involved. this is true especially for vp-positive taxa. for example, hafnia, the klebsiella-enterobacter-serratia group, enterobacter cloacae and erwinia are to some extend characterized by d ...1976998036
enterotoxin-producing bacteria and parasites in stools of ethiopian children with diarrhoeal disease.enterotoxinogenic bacteria were isolated from 131 (37%) of 354 ethiopian infants and children with acute gastrointestinal symptoms. only one of these isolates belonged to the classical enteropathogenic serotypes of esch. coli. two colonies from each patient were isolated and tested for production of enterotoxin by the rabbit ileal loop test, the rabbit skin test, and an adrenal cell assay. however, only 38% of the isolated enterotoxinogenic strains were esch. coli; the others belonged to klebsie ...19761008593
aeromonas neutral protease. 19761012006
aeromonas aminopeptidase. 19761012016
[trout diseases in fish ponds]. 19761028290
[production of anti-aeromonas salmonicida agglutinins by the rainbow trout. influence of temperature, an adjuvant and an immunosuppressive agent].adult rainbow trout were immunized intraperitoneally with a chloroform killed aeromonas salmonicida suspension. agglutinating antibodies were titrated using a microtiter system. antibody activity was associated with igm fraction obtained from sepharose 4 b gel filtration. the kinetics of antibody formation were established at three temperatures. at 50c detectable antibodies were found at day 50 post immunization. at 10degrees c and 16 degrees c the agglutinin titer rose before day 20. the antibo ...19761028376
taxonomy of the family vibrionaceae considered with respect to data on the primary structure of deoxyribonucleic acid. 19761034656
sources of the slow-growing pigmented water bacteria.the group of organisms often labelled as "slow-growing pigmented water bacteria" may include various species of the xanthomonas, cytophoga, pseudomonas, aeromonas and flavobacterium genera. due to their slow growth, this group is usually overlooked in the average clinical laboratory since the pigmented colonies are most easily noted on membrane filter pads or on surface streaked agar plates, but only after 5-15 days of incubation at room temperature. although present at low levels in free-flowin ...1976816754
superactivation of neutral proteases: acylation with n-hydroxysuccinimide esters.a series n-hydroxysuccinimide esters of acylamino acids previously shown to acylate and thereby increase the activity of thermolysin by several orders of magnitude (blumberg, s., and vallee, b. l. (1975), biochemistry 14, 2410) has been used to modify the related neutral proteases from bacillus subtilis, bacillus megaterium, and aeromonas proteolytica. each of these enzymes is activated to a level characteristic of the particular protein and the particular acyl group incorpporated when monitored ...1976823965
interaction of pseudomonas and enterobacteriaceae plasmids in aeromonas salmonicida.we observed that aeromonas salmonicida aro200 will maintain either or both the pseudomonas r-factor, pmg1, and enterobacteriaceae r-factors. this bacterial strain, therefore, provides a unique background wherein the host ranges of pseudomonas and enterobacteriaceae plasmods overlap. co-maintenance of these plasmids resulted in behavior of plasmid aggregates that allowed transfer of r-dterminants beyond the host range of the parent plasmid. we observed that the aro200 genetic background facilitat ...1976824271
an evaluation of commercial thiosulphate citrate bile salt sucrose agar (tcbs). 1976825501
the binding site of escherichia coli ribosomal protein s4 on 16-s ribosomal rna from different bacterial species.ribosomal protein s4 of escherichia coli was bound to 16-s ribosomal rnas from several bacterial species and the complexes digested with pancreatic ribonuclease in an effort to isolate heterologous rna binding sites for protein s4. 16-s rnas from aeromonas punctata, pseudomonas fluorescens and vibrio cuneatus each gave rise to protected fragments whose electrophoretic mobility was 7s, i.e. similar to that of the fragment generated from e. coli 16-s rna using the same conditions. no comparable fr ...1976827436
localization of selenium in bacterial cells using tem and energy dispersive x-ray analysis.bacteria isolated from lake sediment samples reduced sodium selenite to elemental selenium. finestructural observations were made on a number of different bacterial species cultured in the presence of sodium selenite. examination of escherichia coli and a pseudomonas species revealed electron-dense deposits of irregular shape, composed of smaller units, within the cytoplasm but not on the cell wall and cell membrane. cells of aeromonas and flavobacterium species exhibited conspicuous intranuclea ...1976175749
esterase activity of zinc neutral proteases.the hydrolysis of a series of depsipeptides demonstrates that the zinc neutral endopeptidases of bacteria are active esterases. esters such as bzgly-ophe-ala, bzgly-oleu-ala, and fa-gly-oleu-nh2 are hydrolyzed at rates three- to eightfold slower than are their exact peptide analogues, when hydrolyzed by thermolysin, bacillus subtilis neutral protease and the neutral protease from aeromonas proteolytica. ester hydrolysis by zinc neutral proteases follows the characteristic preference for hydropho ...19762276
comparative study of the proteinograms of vibrios and of closely related microorganisms by means of polyacrylamide gel disc electrophoresis.proteinograms of 112 strains of vibrios and closely affiliated microorganisms were studied by disc electrophoresis in polyacrylamide gel. up to 25 protein peaks with definite mobility coefficients were revealed. the influence of the culture medium on the protein spectrum of the microbes was found. the frequency of peak formation was of great significance for the differentiation of the microbes under study. the quantitative characteristics of the peak area could not be used for differentiation.19767908
acute arthritis caused by aeromonas hydrophola: clinical and therapeutic aspects.two cases of aeromonas hydrophila arthritis are reported and a third case present in the literature is reviewed. all three cases occurred in patients with myelogenous leukemia; the knee joint was involved in 2 patients and the metacarpal-phalangeal joint in the third. in the 2 patients presented here, synovial fluid antibiotic levels were measured and were adequate; but a hydrophila was repeatedly cultured from the knee joints, a fact suggesting that other factors, such as normal functioning leu ...19761062992
nalidixic acid as a selective agent for the isolation of enterobacteria from river water.enterobacteria are more resistant to nalidixic acid than the majority of other gram-negative organisms isolated from river water, so allowing their selection on macconkey agar containing nalidixic aicd. selection is further improved by anaerobic incubation which, with nalidixic acid, virtually eliminates oxidase-postivie strains such as pseudomonas or aeromonas.19761068190
comparative susceptibility of atlantic salmon (salmo salar) to the enteric redmouth bacterium and aeromonas salmonicida.the bacterium causing enteric redmouth (erm) and aeromonas salmonicida were found to be equally pathogenic for fingerling atlantic salmon (salmo salar). injection of 5 x 10(5) cells of erm or a. salmonicida killed all salmon within 96 h. after a 30 min exposure to water-borne cells of the two test bacteria about one-half of the test salmon died within 14 days. both erm and a. salmonicida were transmitted horizontally. results indicate that efforts should be made to prevent introduction of erm in ...197616498881
aeromonas distribution and survival in a thermally altered lake.par pond is a thermally enriched monomictic southeastern lake which receives heated effluent from a production nuclear reactor. fish populations in the lake have lesions of epizooty from which aeromonas spp. are readily isolated. distribution and population densities of aeromonas in the water column were measured along an oxygen and temperature gradient as well as seasonally. greater population densities of aeromonas occurred below the oxygen chemocline when the lake was stratified. survival of ...197716345182
partial purification and some properties of tyrosine phenol-lyase from aeromonas phenologenes atcc 29063.tyrosine phenol-lyase was purified 32-fold from aeromonas phenologenes atcc 29063, the organism that produces phenol in refrigerated haddock. the purification procedure included ammonium sulfate fractionation, protamine sulfate treatment, and column chromatography with sephadex g-200, diethyl-aminoethyl-cellulose, and hydroxyapatite. the enzyme was found to be thermally inactivated at temperatures above 40 degrees c. the optimum ph of the enzyme was found to be ph 8.5. the michaelis constants fo ...197716345185
effects of naturally occurring aquatic organic fractions on am uptake by scenedesmus obliquus (chlorophyceae) and aeromonas hydrophila (pseudomonadaceae).naturally occurring organics were extracted from water collected from skinface pond near aiken, s.c. organics were separated into four nominal diameter size fractions (i, >0.0183; ii, 0.0183 to 0.0032; iii, 0.0032 to 0.0009; iv, <0.0009 mum) by membrane ultrafiltration and introduced into scenedesmus obliquus and aeromonas hydrophila cultures to determine their effects on am availability for uptake. effects on am uptake were determined in actively growing s. obliquus cultures after 96 h of growt ...197716345193
partial purification and characterization of a bacterial enzyme catalyzing reductive cleavage of anthracycline glycosides. 197713796
fever and antipyresis in the bluegill sunfish, lepomis macrochirus. 197720274
bacterial metabolism of anthracycline antibiotics. steffimycinone and steffimycinol conversions.streptomyces nogalater, uc-2783, and streptomyces peucetius var. caesius, imru-3920/uc-5633, catalyze ketonic carbonyl reduction of steffimycinone (1, scheme 1). using cell-free preparations of s. nogalater, the process of ketonic carbonyl reduction has been shown to be tpnh linked. the product, steffimycinol (2), is reduced further by aeromonas hydrophila, 2c/uc-6303, by the process of microaerophilic conversion of anthracyclinones previously reported1,2) with the result being the formation of ...197720436
group f, a new vibrio? 197795779
[procedure for the detection cytochrome-oxidase enzymes in bacteria (author's transl)]. 1977199818
[possible errors in bacteriological diagnosis of cholera]. 197769759
isolation of enterotoxigenic aeromonas from fish.this paper reports two different enterotoxigenic classes of the genus aeromonas isolated from fishes. strains of a. sobria were isolated from healthy fishes only wheras strains of a. hydrophila were isolated from both healthy and moribund fishes. aeromonas sobria and hydrophilia strains produced a cytotoxic factor and were highly proteolytic. seventy-five percent (75%) of the a. sobria strains produced only one type of hemolysis on 5% blood agar, but 92% of the a. hydrophilia produced two types ...197771190
[antigenic relations between vibrio cholerae and aeromonas hydrophila].the antigenic relationships between vibrio cholerae and the oxidase-positive intestinal bacteria, agglutinated on slides by cholera antiserum, were investigated by the agglutination reaction. of the 478 oxidase-positive strains studied only strain 209 a, belonging to species aeromonas hydrophila was selected. evidence was found of common agglutinogenic fractions between vibrio cholerae and aeromonas hydrophila 209 a. attention is drawn to possible confusions in the preliminary stages of a labora ...1977143704
[seasonal dynamics of the abundance of vibrios and related microorganisms in the don river].the density of bacteria of the vibrio, aeromonas and comamonas genera the don river was subject to seasonal variations. the maximal vibrio concentration was recorded at the water temperature of 22 degrees c, and of aeromonas and comamonas--at lower temperature. unlike aeromonas, vibrios displayed a reverse dependence of the density on the extent of water contamination.1977146383
the effect of oxidase positive bacteria on total coliform density estimates.the most probable number method for enumerating coliforms was shown to give a false estimate of the coliform density. the inflated estimates were due to lactose positive, non-coliform bacteria whose presence was detected by an oxidase test. thirty-six percent of all the samples examined contained oxidase positive bacteria that were able to produce gas from lactose. their presence resulted in coliform density overestimates which ranged from 2 to 33 times the true value. the frequency of occurrenc ...1977323198
test reproducibility of the api (20e), enterotube, and pathotec systems.thirty-three strains of bacteria (30 enterobacteriaceae and one strain each of aeromonas formicans, a. hydrophila, and plesiomonas shigelloides) were tested three times in each of 27 conventional tests and in the api, enterotube, and pathotec systems. the results obtained were analysed for test reproducibility within each kit, correlation of the kit tests with the equivalent conventional media, and the identification of the strains by the kits. difficulties in evaluation and comparison of identi ...1977323296
pollution indicator bacteria associated with municipal raw and drinking water supplies.a total of 3819 bacterial cultures isolated from municipal water samples were identified using a combination of enterotubules and confirmatory media. frequency distributions for the different genera or groups of bacteria were similar for raw water and drinking water isolations, except for escherichia organisms which doubled their frequency in raw water. differences between the membrane filter (mf) and presence-absence (p-a) test with regard to types of organisms isolated were limited to klebsiel ...1977324588
an aeromonas species implicated in ulcer-disease of the cod (gadus morhua).vibrio anguillarum is the most frequently isolated bacterial species involved in ulcer disease in salt water fish. however, an aeromonas species was very often incriminated in ulcers and septicaemia in cods (gadus morhua) in danish coastal areas. these aeromonas strains were very uniform in their biochemical activities only differing in growth on simmons citrate agar, and the mean value for the guanine + cytosine content of dna was 59 per cent with a standard deviation of 0.4. primary serologica ...1977325501
synthetic disaccharide-protein antigens for production of specific 04 and 09 antisera for immunofluorescence diagnosis of salmonella.the synthetic disaccharides abequose 1 leads to a 3 mannose and tyvelose 1 leads to a 3 mannose, representative of salmonella o-antigen 4 and 9 respectively, were covalently linked to bovine serum albumin (bsa) . antisera from rabbits immunized with these immunogens were used in indirect immunofluorescence assay for the identification of group b (o-antigen 4) and d (o-antigen 9) salmonella. a total of 1030 enteric bacterial strains were tested, including 207 group b and 55 group d salmonella. th ...1977327249
microbial aggregate contamination of water lines in dental equipment and its control.water from some dental clinics has been examined and found to be discoloured, badly tasting and with a foul odour. moreover, brown or black flakes were often present in tap water, as well as in the water lines of dental equipment. examination by phase-contrast and electron microscope showed the flakes to consist of aggregated fungi and bacteria, and similar structures were found in a layer on the inner surfaces of the clinics water tubes and pipes. the ultrastructure of some aggregating microorg ...1977329637
enteric pathogens: use of flow diagrams for identification.a protocol is presented for the cultural processing of stool specimens. flow diagrams were developed which allow all stool cultures to be processed in a consistent and efficient manner. criteria have been established to indicate when definitive identification and antimicrobial susceptibility testing are required. a review of the food-poisoning syndrome and infective gastrointestinal disease due to bacterial agents is included.1977329674
gastroenteritis in children: a two-year review in manitoba. i. etiology.during two years, 1,217 children hospitalized with gastroenteritis at the children's centre in winnipeg, manitoba, canada were studied. bacterial pathogens were present in 25% of these children: enteropathogenic escherichia coli in 120, shigella in 139, salmonella in 24, and multiple pathogens in 18. rotavirus was detected in 54 (11%) of 472 patients examined. rotavirus and enteropathogenic e. coli were the most common pathogens in infants, and shigella was the most common in older children. bac ...1977330769
the role of opportunistic bacteria in human disease. 1977334044
cholera-like diarrhea in canada. report of a case associated with enterotoxigenic escherichia coli and a toxin-producing aeromonas hydrophila.a 67-year-old indian patient was admitted with an acute cholera-like illness. toxigenic escherichia coli producing both heat-stable and heat-labile enterotoxins grew from cultures of feces. in addition, an aeromonas hydrophila producing a cytotoxic toxin was also isolated from this patient's feces. the unusual severity of this patient's illness may have resulted from coinfection with these two toxigenic organisms, although any role of the toxin produced by a hydrophila is speculative.1977335999
septic arthritis of the glenohumeral joint. unique clinical and radiographic features and a favorable outcome.seven patients (eight shoulders) with sepsis of the glenohumeral joint were studied clinically and radiographically. despite the advanced age of the patients, the presence of gram-negative organisms, and multiple risk factors in each patient (including serious chronic underlying diseases), needle drainage and parenteral antibiotics were all that were required for successful management, provided early diagnosis with prompt institution of antibiotics and drainage occurred. contrast arthrography sa ...1977336053
[water and antibioresistant bacteria: an ecological study (author's transl)].the goal of this work is to describe the evolution of bacteria resistant to antibiotics in an aquatic environment and to compare their importance at different stages: human flora, sewage, surface water. coliforms, fecal coliforms and aeromonas are selected at test bacteria. the incidence of this difussion and influencing factors are discussed.1977337871
rapid concentration of bacteriophages from aquatic habitats. 1977407206
aeromonas hydrophila septicaemia producing ecthyma gangrenosum in a child with leukaemia.a 4-year-old girl with leukaemia developed fever and ecthyma gangrenosum. aeromonas hydrophila was isolated from blood and skin lesions. ecthyma gangrenosum is often considered pathognomonic of pseudomonas aeruginosa septicaemia. as is evident from the case reported, it may also result from infection with a. hydrophila, which has different antibiotic sensitivities, and which is now being recognised more frequently as a serious pathogen in immunosuppressed patients.1977408919
techniques for the assessment of growth of micro-organisms on plumbing materials used in contact with potable water supplies. 1977409706
hyperthermia and human leukocyte functions: effects on response of lymphocytes to mitogen and antigen and bactericidal capacity of monocytes and neutrophils.it has recently been demonstrated that fever, or hyperthermia, results in enhanced survival of lizards infected by aeromonas hydrophila. in the present study, the effects of hyperthermia on certain immune functions were assayed in vitro with purified human leukocytes. lymphocyte transformation responses to the mitogen phytohemagglutinin and the common antigen streptokinase-streptodornase were enhanced at 38.5 degrees c relative to 37 degrees c whether analyzed according to absolute counts per mi ...1977412788
a simplified procedure for the examination of drinking water for bacteria of public health significance: the differential hydrobacteriogramme.a new method is described which can be used for the examination of piped drinking water. it is also suitable for monitoring water which was initially of potable quality, and is intended for reuse in the food industry. the method is based on clark's "p-a test" and, because this allows many bacterial types to be detected, i.e. enterobacteriaceae, e. coli, p. aeruginosa, aeromonadaceae and lancefield group d streptococci it is called differential hydrobacteriogramme. a preliminary resuscitation tre ...1977416629
media-dependent oxidase reaction in a strain of aeromonas hydrophila.a strain of aeromonas hydrophila isolated from bile was oxidase positive only when grown on nonselective media. the isolate was oxidase negative when grown on gram-negative selective and/or differential media. it is proposed that oxidase tests on gram-negative rods be performed on colonies grown on nonselective media to assure valid results.1977833265
aeromonas hydrophila in the coelomic cavity of the earthworms lumbricus terrestris and eisenia foetida. 1977858944
survival value of fever in fish. 1977859637
effect of tetramethyl lead on freshwater green algae.the toxicity of tetramethyl lead (me4pb) towards freshwater algae was studied by bubbling biologically generated me4pb from one flask containing 5 mg of pb 1-1 as me3pboac into the culture medium in another flask where a test alga scenedesmus quadricauda was grown. as me4pb is not soluble in water and is volatile, the exposure of an alga to this lead compound was only momentary. it was estimated that less than 0.5 mg of pb(me4pb) had passed through the culture medium. the primary productivity an ...1977869587
[aeromonas in surface waters]. 1977873239
pathogenicity of nonpigmented cultures of chromobacterium violaceum.nonpigmented cultures of chromobacterium violaceum have been found to be similar to pigmented cultures in their virulence for mice and the pathology of their infections. clinicians and microbiologists should be prepared to consider nonpigmented c. violaceum in their differential diagnoses of infections caused by gram-negative bacteria. the laboratorian who is not aware of this possibility is likely to erroneously identify nonpigmented strains of c. violaceum as members of closely associated gene ...1977874071
cefuroxime, a new parenteral cephalosporin: collaborative in vitro susceptibility comparison with cephalothin against 5,887 clinical bacterial isolates.cefuroxime, a new parenteral cephalosporin was compared with cephalothin by broth microdilution susceptibility testing against 5,887 routine clinical bacterial isolates in four large clinical laboratories. the minimal inhibitory concentrations (mics) of cefuroxime against the enterobacteriaceae were consistently lower than those of cephalothin. this was most striking among the enterobacter species, which were generally susceptible to cefuroxime (mic </= 8 mug/ml), but resistant to cephalothin. s ...1977883818
an immuno-india ink technique for rapid laboratory diagnosis of fish furunculosis. 1977885822
aeromonas hydrophila in acute diarrheal disease: detection of enterotoxin and biotyping of strains.eleven isolates of aeromonas species from human stool cultures were found to produce enterotoxin activity as determined by assay of culture filtrates in rabbit intestinal loops and rabbit skin and on adrenal y1 cells. hemolysin(s) and a cytotoxic protein were found to interfere in all three assay systems but could be inactivated upon heating at 56 degrees c or by specific antihemolysin. biotyping of each isolate was performed with a conventional test system and with api 50e and apizym kit system ...1977893660
enterotoxicity of aeromonas hydrophila.live cells and cell-free culture supernates of 50 strains of aeromonas hydrophila isolated from diarrhoeic and healthy human faeces, drinking water, sewage, the river ganges and faeces from domestic animals caused accumulation of fluid in ligated ileal loops of adult rabbits. the amount of fluid produced was comparable to that of a toxigenic strain of vibrio cholerae. three of the strains gave positive reactions only after two passages in ileal loops of rabbits. inocula of about 10(3) viable cel ...1977894697
[role of aeromonads in human pathology]. 1977899446
[choleriform syndromes due to aeromonas hydrophila. 2 cases]. 1977917795
bacterial flora of the sea urchin echinus esculentus.a total of 85 isolates of mesophilic, aerobic, heterotrophic bacteria were isolated from the gut, peristomial membrane, and coelomic fluid from specimens of the sea urchin echinus esculentus from the clyde sea area of scotland. these isolates were compared with 26 isolates from sand and seawater in the same locality. overall, strains of pseudomonas and vibrio predominated. gut (with an average bacterial viable count of 2 x 10(7) per 3-cm section) and coelomic fluid (which was often sterile and r ...1977921260
[identification of the causing agent of erysipelas of fishes]. 1977929917
[use of crotonolactone in aeromonas infection of the carp]. 1977929929
[2 choleriform syndromes caused by aeromonas hydrophila observed in western africa]. 1977589736
[aeromonas in food products and its possible role as a pathogen of food poisoning]. 1977590811
the occurrence of pseudomonas spp. in surface water and in tap water as determined on citrate media.citrate-utilizing bacteria were counted in 289 samples of tap water derived from either surface water or ground water and in 32 samples of raw or partially treated surface water by using media containing ferric ammonium citrate as the carbon and energy source. the citrate-utilizing bacteria constituted only small minorities of the colony counts on lab-lemco agar at 25 c in both tap water and surface water. a total of 1071 isolates were obtained, of which 979 were able to utilize citrate. charact ...1977596862
septic arthritis due to aeromonas hydrophila infection. 1977597462
[preliminary serological investigations on aeromonas and vibrio strains associated with the ulcussyndrome in cod (author's transl)]. 1977600698
[study of 50 strains of aeromonas hydrophilia isolated from fishes].a bacteriological survey of the healthy goldfish (carassius auratus) demonstrated the frequent occurrence of a. hydrophila. the biochemical characters and the sensitivity to 29 chemiotherapics and 15 antiseptics of 50 fish originating strains were studied and compared with a number of strains, implicated in human pathology. the results of this study indicate a good agreement for the biochemical characters and the sensitivity to chemiotherapics between the fish and the human strains. owing to thi ...1977603101
ticarcillin: a collaborative in vitro comparison with carbenicillin against over 9,000 clinical bacterial isolates.the minimal inhibitory concentrations of ticarcillin and carbenicillin were determined for 9,236 clinical bacterial isolates by the broth microdilution method at four participating laboratories. ticarcillin showed significantly increased activity against klebsiella pneumoniae (p less than .001), pseudomonas aeruginosa (p less than .001) and aeromonas hydrophilia (p less than .005) when compared to carbenicillin, but no signifcant differences were observed against other gram-negative organisms. t ...1977610415
[microbial pollution of the environment by herds of animals. ii. some gram-negative bacterial genera from bovine herds]. 1977616588
behavioral fever in anuran amphibian larvae. 1977300138
[antibiotic treatment and opportunistic infections]. 1977559126
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