| [the pharmacological effect of yersinia enterocolitica (o) antigens on isolated guinea pig and rabbit ileum]. | in this study, acetylcholine-like effect of yersinia enterocolitica (o) antigen on isolated guinea-pig and rabbit ileum was observed. atropine was shown its antagonist. | 1989 | 2483247 |
| [stationary and migratory avifauna as reservoirs of salmonella, yersinia and campylobacter]. | domestic and wild animals have been always considered very important as reservoir of agents of human infections. particularly birds, because of their great mobility from a continent to another or within the limits of the same ecosystem may transfer pathogenic micro-organisms. the present survey was undertaken in order to evaluate the presence of campylobacter, yersinia and salmonella in migratory and permanent birds. during the period october 1986 to march 1988 intestinal loops were collected fr ... | 1989 | 2483644 |
| [current problems in the microbiological control of food]. | the paper deals with a number of aspects of current interest and significance on the subject of the microbiological testing of food with particular reference to the role of research institutes. the main objectives of microbiological testing of food are essentially two: (i) to establish the absence of a human health hazard due to microbial contamination of food (food safety); and (ii) to define the quality standard of food (food quality). as far as the first of these objectives is concerned, the ... | 1989 | 2483651 |
| [gram-negative flora of horticultural produce destined for consumption mainly in the raw state]. | a survey has been carried out to evaluate the recovery of enterobacteriaceae in freshly consumed horticultural products. 64 samples of these vegetables random chosen in different stores in the general vegetable market of ferrara have been examined among the families of compositae (lettuce, prickly lettuce, cabbage lettuce, common chicory, artichoke), umbrelliferae (curly parsley, carrot, celery, fennel), cruciferae (garden cabbage, red radish), liliaceae (onion), and solanaceae (tomato). 654 bac ... | 1989 | 2483908 |
| [the structure of o-specific polysaccharide of yersinia frederiksenii serotype o:16,29 lipopolysaccharide]. | a branched chain octose, 3,6-dideoxy-4-c-(l-glycero-1'-hydroxyethyl)-d-xylo- hexose, was isolated from the lipopolysaccharide of yersinia frederiksenii, serovar o: 16.29 and identified as yersiniose a from y. pseudotuberculosis, serovar vi. mild hydrolysis of the lipopolysaccharide with acetic acid afforded a rhamnan. structural features of the trisaccharide repeating unit were elucidated on the basic of 13c nmr spectral data, methylation studies and periodate oxidation. using these data as well ... | 1989 | 2483941 |
| [the fate of pathogens in waste-waters]. | a large variety of pathogenic organisms capable of transmission by the faecal-oral route may be found in wastewaters. among the bacteria salmonella, shigella, vibrio cholerae, yersinia and campylobacter are the important agents of concern. also the human enteric viruses (poliovirus, coxsackievirus, echovirus, hepatitis a virus, rotavirus) have been shown to be present in domestic waste and may not be completely removed by conventional sewage treatment processes, including chlorination. discharge ... | 1989 | 2484470 |
| [yersinia enterocolitica in fresh and packaged meats]. | in these last years it was observed an increased frequency of human infections by y. enterocolitica supported mostly in europe by serotype 0:3 and 0:9, and by serotype 0:8 in u.s.a. as far as it is concerned the transmission form to man, in addition to the possible infection between men, the one from animal to man and the one consequent on water use, most important suspicions are about foods derived from infected animals or however contaminated by man (fresh or preserved or processed meat, milk ... | 1989 | 2484479 |
| hemochromatosis and infection: alcohol and iron, oysters and sepsis. | hemochromatosis, or primary iron overload, is a variably expressed genetic metabolic disorder greatly modified by sex, age, diet, and alcohol consumption. although a diagnosis has been made at the bedside by careful documentation of the slow resolution of subcutaneous iron pigment, clinical diagnosis is frequently overlooked, and even autopsy may fail to reveal hemochromatosis as the cause for cirrhosis. genetic linkage studies have confirmed the extremely high prevalence of this disorder. untre ... | 1989 | 2486533 |
| [natural infection by yersinia pestis, in fleas from plague foci in the northeast of brazil]. | three different containment transport processes of fleas were evaluated as an approach to the bacteriologic isolation of yersinia pestis. the three methods employed were: live fleas in glass tubes containing pieces of wrapped filter paper; dead fleas in saline solution; and macerated fleas in cary-blair culture medium. the two latter methods were almost equal and superior to the first method. a total of 29512 flea pools, from plaque foci in northeast brazil collected during 1966 to 1982 were eva ... | 1989 | 2487774 |
| [yersinia and infantile gastroenteritis]. | fecal samples and intestinal mucosal biopsies of 16 patients in paediatric age, with protracted diarrhoea with blood and mucus, were examined for intestinal pathogens including yersinia. yersinia enterocolitica 1/5/xz and yersinia intermedia 1/18/xz were isolated from fecal samples of two patients. in another child, yersinia enterocolitica, 1/5/xz was isolated from fecal sample, while yersinia enterocolitica 1/self-agglutinable/xz from colon biopsy. the other intestinal pathogens were absent; ae ... | 1989 | 2490392 |
| [old and new pathologies proposed by epidemiology]. | the results of a study made in the areas of central italy on a random community on the significant presence of cases with seroantibodies against campylobacter, yersinia, legionella pneumophila, francisella tularensis and rotavirus confirm the hypothesis on the presence in the territory of microorganisms responsible. these positivities in man are not only single but also contemporaneous for at least two microorganisms. hence the hypothesis of the presence in the environment (animals, soil, surfac ... | 1989 | 2490401 |
| [cervical adenitis caused by yersinia pseudotuberculosis]. | | 1989 | 2490440 |
| listeria spp. and enteric pathogens in raw meat: a survey in the ferrara area. | the authors report the results of a study performed on 113 samples of raw meat of 6 different animal species in order to evaluate the extent of contamination by some organisms responsible for food-borne infections. a total of 2 strains of salmonella (1.7%), 36 of yersinia (31.8%), 35 of campylobacter (30.9%) and 13 of listeria (11.5%) were isolated. the possible role of contaminated meat in cases of human listeriosis is pointed out. | 1989 | 2491284 |
| [bacterial etiologies of acute infantile diarrhea in dakar]. | systematic research into all the bacterial etiological agents responsible for acute diarrhoea was undertaken on 276 diarrhoea stools collected from children aged 0-5 years. particular attention was given to finding bacterial agents usually overlooked during routine checks: campylobacter, vibrionaceae and yersinia enterocolitica. | 1989 | 2491376 |
| alexandre yersin: pursuer of plague. | | 1989 | 2494200 |
| focal ulcerative ileocolitis with terminal thrombocytopenic purpura in juvenile cotton top tamarins (saguinus oedipus). | a newly recognized syndrome characterized by an acute focal ulcerative ileocolitis, anemia and thrombocytopenic purpura in five juvenile cotton-top tamarins is described. the presentation and morphology of this syndrome is distinct from any other reported gastrointestinal disease reported in tamarins. traditional etiologies such as viruses, ingested toxins, campylobacter, salmonella and yersinia and clostridium difficile are not considered likely etiologic agents. nontraditional etiologies such ... | 1989 | 2496272 |
| [population dynamics of yersinia pseudotuberculosis in association with the infusorian tetrahymena pyriformis]. | the decisive role of biotic factors in the preservation of the viability of y. pseudotuberculosis is shown. the results of experiments suggest that protozoa may serve as reservoir in the spread of y. pseudotuberculosis infection. | 1989 | 2496540 |
| [recent bacterial risks in foods]. | knowledge about bacterial foodborne diseases has broadened over the last 15 years. to this development have contributed improved isolation and identification methods but also the application of systematic epidemiological studies. in principle, no "new" bacteria have been discovered but their occurrence in foods was not known (e.g. campylobacter jejuni/coli) or their detection in foods could not be firmly linked with disease in man (e.g. listeria monocytogenes, e. coli o157:h7). for campylobacter ... | 1989 | 2500815 |
| "new" food-borne pathogens of public health significance. | recent work by epidemiologists and microbiologists has uncovered several hitherto unrecognized food-borne bacterial pathogens of public health significance. one of these, listeria monocytogenes, has attracted considerable attention because of two major cheese-related outbreaks of listeriosis that were characterized by cases of meningitis, abortion, and perinatal septicemia. thus far, l. monocytogenes has been responsible for well over 300 reported cases of food-borne listeriosis, including about ... | 1989 | 2501376 |
| [the most frequent infectious causes of abortion in sheep in north bavaria with special reference to chlamydia and salmonella infections]. | between 1980 and 1987 1153 ovine fetuses and placentas were examined after abortion. in 68.5% of the cases a cause of abortion could be diagnosed as follows: 43.5% chlamydia psittaci var. ovis, 10.7% salmonella abortus ovis, 3.7% coxiella burnetii, 3.3% listeria monocytogenes and 0.4% campylobacter fetus intestinalis. hemolyzing escherichia coli and streptococci, yersinia pseudotuberculosis, salmonella typhimurium, salmonella enteritidis, corynebacterium pyogenes and other facultative pathogens ... | 1989 | 2503908 |
| detection of neisseria meningitidis and yersinia pestis with a novel silicon-based sensor. | a light-addressable potentiometric (silicon) sensor was used in an immunofiltration procedure for the detection of pathogenic bacteria. yersinia pestis was detected by filtering the cells onto nitrocellulose membranes and then filtering anti-y. pestis mouse monoclonal antibody and anti-mouse immunoglobulin g-horseradish peroxidase conjugate. for neisseria meningitidis detection, mouse monoclonal antibody to the major outer membrane protein of this bacterium was coupled directly to horseradish pe ... | 1989 | 2504767 |
| [possible control of capsule formation and intracellular synthesis of envelope antigen by each different plasmid]. | variants which lacked capsular envelopes on their cell surface were isolated from the culture of a highly virulent yreka strain of yersinia pestis grown in the presence of acridine orange, ethidium bromide or sodium dodecyl sulfate at incompletely growth-inhibitory concentrations. the variant could be divided into two types on the basis of the presence and the absence of intracellular envelope antigen. both types of the variants lacked the 13 megadaltone (md) plasmid. thus, it may well be said t ... | 1989 | 2504836 |
| arthropathy associated with brucella abortus strain 19 vaccination in cattle. i. examination of field cases. | thirty cows presenting with lameness and persistent serological reactions to brucella abortus had chronic granulomatous arthropathy of the femorotibial and occasionally other joints. attempts to culture brucella or other pathogens gave negative results but organisms of brucella morphology were seen in fluorescent antibody-stained cryostat sections of synovial tissue. the synovial fluids contained high titres of antibodies to b. abortus and yersinia enterocolitica o:9 and had elevated total prote ... | 1989 | 2505883 |
| [an identification of special antibodies for brucellosis]. | applying antigens of b. abortus and y. enterocolitica 0:3, detection 88 sera of cattle in foci of brucellosis was carried out by dot-elisa on nitrocellulose filter paper, and compared with conventional elisa and sat. the results showed that coincident rate of dot-elisa and elisa was 98%. their sensitivity was more than sat. in contrast with others, the dot-elisa should differentiate brucella antibody from antibody to y. enter. 0:9. in addition, the method is a simple, speed, stable, and very eas ... | 1989 | 2505930 |
| clinical manifestations of yersinia pseudotuberculosis infection in children. | the clinical manifestations of infection were analysed during an outbreak of 34 cases of yersinia pseudotuberculosis serotype ia infection. the diagnosis was based on the results of enzyme immunoassay and verified by stool culture in five cases. the first four patients were pupils from the same school, and information on any signs and symptoms of infection was obtained by questionnaire from pupils of the school. a blood sample was obtained from 101 children. strong igm and igg antibody responses ... | 1989 | 2506017 |
| [isolation of monoclonal antibodies for the identification of strains of the causative agent of plague that do not contain a capsular antigen]. | in most cases the immunological identification of y. pestis strains is based on the use of capsular antigen as an immunological marker. however, there are y. pestis strains without capsular antigen. for the immunological identification of such strains, homogeneous antigen with a molecular weight of 43 kd has been isolated and monoclonal antibodies to it have been obtained. the enzyme-linked immunosorbent assay, carried out with the use of these monoclonal antibodies and intended for the detectio ... | 1989 | 2511708 |
| yersinia enterocolitica associated diarrhoea in a neonate. | | 1989 | 2513193 |
| in vitro activity of dactimicin, a novel pseudodisaccharide aminoglycoside, compared with activities of other aminoglycosides. | the in vitro activity of dactimicin, a new pseudodisaccharide aminoglycoside which possesses a formimidoyl group, was compared with those of gentamicin, tobramycin, and amikacin against 500 isolates. dactimicin inhibited 90% of isolates from the family enterobacteriaceae at a concentration of less than or equal to 4 micrograms/ml. it was more active than amikacin against klebsiella pneumoniae, serratia marcescens, citrobacter diversus, enterobacter agglomerans, yersinia species, and salmonella s ... | 1989 | 2514625 |
| survival and growth of food poisoning bacteria following inoculation into cottage cheese varieties. | following inoculation into cottage cheese varieties with and without sorbic acid, obtained directly from the manufacturer, strains of enteropathogenic escherichia coli and other e. coli survived but failed to multiply during storage at 7, 10 or 25 degrees c. in the absence of sorbic acid spoilage due to pseudomonas fluorescens occurred after storage for 5-13 days at 7 or 10 degrees c and 1-2 days at 25 degrees c. salmonella enteritidis, s. hadar, s. saint-paul, s. typhimurium and s. virchow surv ... | 1989 | 2518228 |
| [in vitro activity of ampicillin and ampicillin-sulbactam on diverse bacteria]. | a foremost mechanism of bacterial resistance to penicillin and its derivatives is the chromosomal or plasmid mediated production of b-lactamase. inhibitors of these enzymes like sulbactam may help overcome this problem. we tested the in vitro activity of ampicillin alone or in association with sulbactam (1:1 ratio) against enterobacteriaceae, aeromonae, hemophilus influenzae, staphylococci and streptococcus fecalis, isolated from patients suffering different infectious diseases. the kirby-bauer ... | 1989 | 2519428 |
| seasonal patterns of rodents, fleas and plague status in the western usambara mountains, tanzania. | field and commensal rodents were live-trapped at three villages in an active focus of plague (yersinia pseudotuberculosis pestis) in lushoto district, western usambara mountains, tanga region, tanzania, from december 1983 to november 1984. their flea ectoparasites were collected, identified and counted. the rodent carcasses were serologically examined for specific plague antibodies and antigens, and bacteriologically examined for bipolar staining bacilli. a total of 1758 traps were set during th ... | 1989 | 2519642 |
| cloning and characterization of a pectate lyase gene from erwinia carotovora ec153. | a pel gene cloned from strain ec153 of erwinia carotovora encoded a pectate lyase that macerated plant tissue with moderate efficiency. this gene, called pel153, was sequenced and found to possess considerable homology with a pectate lyase gene from yersinia pseudotuberculosis. the yersinia protein, however, was truncated at the carboxyl terminal end relative to the erwinia gene product and had a lower isoelectric point. the erwinia pel153 gene was overexpressed in cells of escherichia coli, and ... | 1989 | 2520159 |
| presence of yersinia specific antibodies in hospitalized patients with arthritis and reiter syndrome. | a number of 50 patients admitted with arthritis and reiter syndrome were investigated to detect the presence of yersinia specific antibodies. the specific antibodies were evidenced in 5 patients (10%)--3 with antibodies to y. enterocolitica and 2 with antibodies to y. pseudotuberculosis, in titers greater than or equal to 1/160. the patients were followed in dynamics up to 3-4 months. the antibodies to y. enterocolitica persisted in time longer than those to y. pseudotuberculosis. for a better k ... | 1989 | 2520672 |
| [bacterial isolation in infants hospitalized for acute diarrhea]. | bacteria were investigated in stools of 156 children under two years of age admitted to the pediatric wards of a general hospital at the western metropolitan area of santiago, chile, because of acute diarrhea with only one stool sample. a known pathogenic agent was isolated from 115 cases (73.7%), this being a bacteria in 87/115 (75.6%). most prevalent microorganisms were enteropathogenic escherichia coli (epec). (65.5%), specially serogroups 0111, 0119 and 055, enterotoxigenic escherichia coli ... | 1989 | 2520838 |
| [iron assimilation by yersinia pestis on iron-deficient media]. | the growth of plague bacteria may be limited by the level of iron concentration in the nutrient medium. the virulent strains of the plague microbe possess the more pronounced mechanism of iron assimilation as compared to the vaccine strain. the iron ions are extracted by the virulent and vaccine strains only under the cell surface contact with the iron-saturated transferrin. the iron-sorbing function is peculiar to the plague microbe cell walls which is pronounced more strongly in the virulent s ... | 1989 | 2524638 |
| a yersinia pestis-specific dna fragment encodes temperature-dependent coagulase and fibrinolysin-associated phenotypes. | the effect of temperature on coagulase and fibrinolysin expression (pla) by yersinia pestis has been implicated in the transmission of plague by fleas. in an attempt to improve our understanding of this process, we have cloned, sequenced and characterized the gene encoding the pla phenotypes in y. pestis, and examined its temperature-dependent regulation. the coding region for this gene overlaps a 900bp y. pestis-specific dna fragment that we have previously shown to be capable of detecting plag ... | 1989 | 2526282 |
| [the prevalence of yersinia and its serologic variants in patients with acute intestinal diseases of undetermined etiology in leningrad]. | among yersinia enterocolitica strains of 32 serovars, proposed as typing strains, some strains were found to belong to new species. y. enterocolitica sensu stricto was represented by 21 serovars in the collection of typing strains. the occurrence of different yersinia serovars in patients with acute enteric diseases of unknown etiology in leningrad in 1983-1986 was determined with the use of the set of monoreceptor to 21 serovars. out of 2,947 cultures studied by biochemical and serological meth ... | 1989 | 2531522 |
| long-term analysis of data on the isolation of yersinia pestis cultures from rodents during epizootological examinations of natural foci in muyun-kum and eastern kizil-kum. | results are presented of a long-term examination and evaluation of data on the microbiological procedures of isolating yersinia pestis cultures from wild mammals and their association animal plague pathogenesis as suggested by investigations in the muyun-kum autonomous plague focus and the eastern kizil-kum mesofocus. 1772 yersinia pestits cultures were isolated largely from rhombomys opimus as the principle host over 23 years. the authors determined the frequency of pathological alterations in ... | 1989 | 2533934 |
| associative growth of yersinia enterocolitica 0:3 with pseudomonas aeruginosa and staphylococcus aureus in a diffusion apparatus. (ecologen). | to evaluate associative growth of psychorotrophic p. aeruginosa and s. aureus with y. enterocolitica 0:3, microorganisms were grown in trypticase soy broth in a diffusion apparatus (ecologen) and incubated for 9 days at 4 degrees c. the effects of culture interactions were determined by growth curves, lag times, generation times, ph changes and acid production. the observed growth curves for y. enterocolitica 0:3, p. aeruginosa and s. aureus, shows the stimulating effects of y. enterocolitica 0: ... | 1989 | 2534873 |
| outer membrane peptides of yersinia pestis mediating siderophore-independent assimilation of iron. | it is established that wild-type cells of yersinia pestis absorb exogenous hemin or congo red and thus grow as pigmented colonies at 26 degrees c on media containing these chromatophores (pgm+). pgm+ isolated are known to possess a siderophore-independent mechanism of iron-transport (required for growth in iron-deficient medium) which is absent in avirulent pgm- mutants. production of the bacteriocin pesticin and linked invasins (pst+) is an additional defined virulence factor of yersiniae; muta ... | 1989 | 2535180 |
| inhibition of polymorphonuclear leucocyte functions in vivo by yersinia enterocolitica lipopolysaccharide. | a single intravenous injection of 5 micrograms of yersinia enterocolitica lipopolysaccharide (lps) inhibits rabbit polymorphonuclear leucocyte (pmn) chemotaxis, enzyme secretion, and respiratory burst activation in response to partially purified rabbit c5a and leucotriene b4 (ltb4). respiratory burst activation is also inhibited in response to platelet activating factor (paf). in contrast, all these responses to n-formyl-methionyl-leucyl-phenylalanine (fmlp) remain unaltered. this lps does not m ... | 1989 | 2538104 |
| new approaches to vaccine development. | a survey of current approaches to the development of vaccines against enteric diseases illuminates several strategies for the rational design of mycobacterial vaccines. one approach is to identify virulence factors and, through the use of transposon-mediated gene inactivation, to produce mutants that lack these factors. such a strategy can provide important information on antigens important to protection. genetic deletion or modification of these virulence factors provides insight into both the ... | 1989 | 2540520 |
| [changes in the functional activity of polymorphonuclear leukocytes in pseudotubercular infection]. | the functional activity of polymorphonuclear leukocytes (pnl) of the peripheral blood of rabbits infected orally with y. pseudotuberculosis was studied. by day 5 of y. pseudotuberculosis infection the pronounced stimulation of the myeloperoxidase system with the appearance of respiratory explosion was registered with the use of the nitro blue tetrazolium (nbt) test. the nbt-positive leukocyte index was found to increase 3.32-fold in comparison with the initial data. according to the results of t ... | 1989 | 2540602 |
| infection caused by francisella philomiragia (formerly yersinia philomiragia). a newly recognized human pathogen. | we evaluated the clinical characteristics of patients with francisella philomiragia (formerly yersinia philomiragia) isolated from normally sterile sites. isolates from 14 patients were received by the centers for disease control between 1975 and 1987: 9 were from blood; 2 from lung biopsies; and 1 each from pleural, peritoneal, and cerebrospinal fluid. underlying problems included chronic granulomatous disease in 5 patients, near-drowning in 5, and a myeloproliferative disease in 2. all 13 pati ... | 1989 | 2541646 |
| determinants for thermoinducible cell binding and plasmid-encoded cellular penetration detected in the absence of the yersinia pseudotuberculosis invasin protein. | yersinia pseudotuberculosis inv mutants were analyzed for their ability to bind and penetrate mammalian cell lines. strains defective for the production of invasin and cured of the yersinia virulence plasmid pib1 were extremely defective for entry into the hep-2 cell line. inv strains harboring the virulence plasmid partially overcame this defect, indicating that the virulence plasmid mediates an invasin-independent pathway for low-level entry into cultured cells. plasmid-cured inv mutants were ... | 1989 | 2543628 |
| experimental studies on yersinia enterocolitica infection in chickens exposed at 1-day old. | 1. seventy 1-d-old broiler chicks were experimentally inoculated orally with yersinia enterocolitica serotype 0:3 (1.4 x 10(11) cells/chick), 0:8 (1.6 x 10(11) cells) and 0:9 (8.0 x 10(10) cells) with or without sodium bicarbonate solution (10 g/l). 2. none of the chicks showed any overt clinical signs or pathological lesions although the organism was demonstrated in the ileum and shedding was observed up to 13 d after exposure. 3. the serotype, dose of y. enterocolitica and administration of na ... | 1989 | 2545317 |
| identification of additional virulence determinants on the pyv plasmid of yersinia enterocolitica w227. | this paper describes the mutagenesis of the pyv plasmid from yersinia enterocolitica w22703 (serotype o:9) with tn2507, a new element generating operon fusions. analysis of the mutants allowed the identification of an additional yop protein called yop20 and the mapping of yop20, yop44, yop48, and lcrv, the gene encoding the v antigen. the last gene appeared to be part of an operon that also may contain yop37 and yop44. at 37 degrees c, mutants affected in this operon grew poorly, irrespective of ... | 1989 | 2545628 |
| [the occurrence of escherichia coli, aeromonas hydrophila, plesiomonas shigelloides and clostridium perfringens in the intestinal flora of gray herons (ardea cinerea)]. | the flora of the large intestine of 92 grey herons was examined for the frequency of aerobic and microaerobic growing bacteria. clostridium perfringens, aeromonas hydrophila, plesiomonas shigelloides and e. coli were isolated from 55%, 48%, 14% and 35% of the birds, respectively. it could be demonstrated that the findings of these bacteria in the intestinal flora are depending on the age of the birds. the percentage of carriers of clostridium perfringens, aeromonas hydrophila and plesiomonas shi ... | 1989 | 2548355 |
| infections in thalassemic patients (hepatitis and bone marrow transplantation related infections excluded). | | 1989 | 2550960 |
| arteriosclerotic abdominal aortic aneurysm infected with yersinia enterocolitica. | | 1989 | 2554423 |
| enterotoxin induced diarrhoea--an update. | the pathogenic personality or the criteria required to be a successful pathogen, of enteric bacteria includes, among others, the ability to produce potent proteins which by different intracellular mechanisms elicit what we overtly see as diarrhoea. enteropathogens belonging to several genera like vibrio, escherichia, shigella, salmonella, campylobacter, aeromonas and yersinia include species capable of elaborating strikingly similar exotoxins which seem to share common mechanisms of action invol ... | 1989 | 2554547 |
| epidemiology and aetiology of acute childhood diarrhoea in burma: a rural community survey. | identical epidemiological and microbiological surveys were carried out in a rural community at intakaw, burma, in 2 months, one in the hot wet and the other in the cool dry season. the incidence of diarrhoea was highest in children under 3 years old and in the hot wet month when enterotoxigenic escherichia coli was the predominant pathogen. rotavirus was the commonest pathogen in the cool dry month but was absent in the hot wet month. shigellae, salmonellae and campylobacter were isolated in bot ... | 1989 | 2559512 |
| antibacterial effect of the glucose oxidase-glucose system on food-poisoning organisms. | the antibacterial effect of the glucose oxidase-glucose system was studied on food-poisoning organisms including staphylococcus aureus, salmonella infantis, clostridium perfringens, bacillus cereus, campylobacter jejuni, listeria monocytogenes and yersinia enterocolitica using automated turbidometry. the bacteria were grown in sterile-filtered meat medium which was either raw or heat-denaturated. the results showed a clear growth inhibition with combinations of 0.5-1.0 mg/ml glucose and 0.5-1.0 ... | 1989 | 2561954 |
| type 3 fimbriae among enterobacteria and the ability of spermidine to inhibit mr/k hemagglutination. | the distribution of the gene cluster encoding type 3 fimbriae among various isolates of the family enterobacteriaceae was investigated by using 112 clinical and nonclinical isolates. closely related dna sequences were detected in all klebsiella strains, in most enterobacter isolates, in a smaller number of escherichia coli and salmonella spp., and in a single isolate each of yersinia enterocolitica and serratia liquefaciens but not in isolates of morganella or providencia species or serratia mar ... | 1989 | 2562835 |
| incidence and sonographic diagnosis of bacterial ileocaecitis masquerading as appendicitis. | 533 consecutive patients with suspected acute appendicitis or appendiceal mass were examined by ultrasonography to distinguish acute appendicitis from bacterial enteritis. in 61 (11.4%) ultrasonography revealed the characteristic picture associated with bacterial enteritis of the ileocaecal region--enlarged mesenteric lymph nodes and mural thickening of the terminal ileum and caecum--but no image of the appendix. in 41 of these a bacterial infection was confirmed: infection due to yersinia enter ... | 1989 | 2567879 |
| kikuchi's disease presenting as fever of unknown origin. | | 1989 | 2574785 |
| polyclonal b-cell activation by bacteria that induce nonsuppurative sequelae. | the polyclonal b cell activation (pba) process induced by klebsiella pneumoniae k34 (klebs) and yersinia enterocolitica 03 (yers) was investigated. both heat-inactivated bacteria and their cell wall biostructures (klebsm, muriene, protein i etc.) stimulate human blood b cells to differentiate into immunoglobulin-secreting cells without prior proliferation and without t cells. klebs-activated b cells secrete mainly igm and to a lesser degree igg (mainly igg2). the pba process was regulated by cd4 ... | 1989 | 2575282 |
| [rheumatologic syndrome in gastrointestinal diseases. clinical and pathogenetic aspects]. | patients with reactive arthritis, sacroiliitis, spondylitis or reiter's syndrome following intestinal infection from yersinia, salmonella, shigella or campylobacter organisms have been reported from endemic areas and after epidemic dysenteries. possession of the antigen hla b27 affects severity and prognosis of the arthritis and is more often associated with spondylitis and reiter's syndrome. articular manifestations are also quite common systemic complications of chronic inflammatory bowel dise ... | 1988 | 2577931 |
| ion selectivity of gram-negative bacterial porins. | twelve different porins from the gram-negative bacteria escherichia coli, salmonella typhimurium, pseudomonas aeruginosa, and yersinia pestis were reconstituted into lipid bilayer membranes. most of the porins, except outer membrane protein p, formed large, water-filled, ion-permeable channels with a single-channel conductance between 1.5 and 6 ns in 1 m kcl. the ions used for probing the pore structure had the same relative mobilities while moving through the porin pore as they did while moving ... | 1985 | 2580824 |
| [use of pseudotuberculosis coagglutinating antibody diagnostic agent in laboratory practice]. | | 1985 | 2581018 |
| [demonstration of a species specific determinant of bacteroides fragilis lipopolysaccharides using monoclonal antibodies]. | the reactivity of two monoclonal antibodies to bacteroides fragilis was tested (elisa) with 37 strains of b. fragilis, 1 strain each of b. thetaiotaomicron, b. ovatus, b. vulgatus and b. eggerthii, 1 strain of fusobacterium, as well as pseudomonas aeruginosa (6 strains), e coli (8 strains), klebsiella (2 strains), yersinia enterocolitica (1 strain) and lps from salmonella minnesota. both monoclonal antibodies proved to be specific for b. fragilis. the determinants recognized by these antibodies ... | 1985 | 2581371 |
| [basic somatic antigen or antigen obtained from yersinia pestis by the boivin-mesrobeanu method]. | | 1985 | 2581401 |
| a yersinia enterocolitica serotype 0:3 lipopolysaccharide-specific monoclonal antibody reacts more strongly with bacteria cultured at room temperature than those cultured at 37 degrees c. | it has been suggested that the o-side chains of the lipopolysaccharide (lps) of serotype 0:3 strains of yersinia enterocolitica vary quantitatively and qualitatively depending on whether they are cultured at 37 degrees c or 25 degrees c. it is uncertain whether this affects the expression of the serotype-specific antigens that are probably carried on the lps. we studied this question with a serotype 0:3-specific monoclonal antibody, 2c1. this monoclonal antibody immunoprecipitated a 39k major pr ... | 1985 | 2582049 |
| [use of hemin as a stimulator of the growth of the plague microbe]. | | 1985 | 2582200 |
| incidences of antibodies to yersinia enterocolitica: high incidence of serotype o5 in autoimmune thyroid diseases in japan. | antibodies to yersinia enterocolitica serotype o3, o5, o6 and o9 were measured by the micro-agglutination method in 445 healthy subjects and patients with grave's disease (n = 70), hashimoto's disease (n = 45) and thyroid tumor (n = 29). in contrast to previous reports, the incidence of antibodies to serotype o3 in each group of patients with thyroid diseases was not significantly different from that in healthy subjects. however, the incidence of antibodies to serotype o5 was significantly highe ... | 1989 | 2583057 |
| temperature-dependent incorporation of 4-amino-l-arabinose in lipid a of distinct gram-negative bacteria. | the presence and the relative amount of 4-amino-l-arabinose in lipopolysaccharides of members of the enterobacteriaceae family and in a single strain of chromobacterium violaceum has been studied with regard to growth-temperature dependent variations. changes in the presence and the amount of 4-amino-l-arabinose (4-aa) were observed in almost all cases, but the variations observed were not consistent among different species. while salmonella minnesota and proteus mirabilis showed higher levels o ... | 1989 | 2583477 |
| occurrence of yersinia spp. in migratory birds, ducks, seagulls, and swallows in japan. | | 1989 | 2585935 |
| yersinia enterocolitica 08 "american strain" isolated in italy. | a strain of yersinia enterocolitica serotype 08: b,e,f,i, "american strain", was isolated from a child suffering from febrile enteritis, without any history of foreign travel. such a strain, very uncommon in italy, though isolated from a sick child, lacked both in vivo and in vitro virulence-associated characteristics as lethality in mice, spontaneous autoagglutination and calcium dependency, traits correlated to a lack of the virulence plasmid. | 1989 | 2586336 |
| [findings of yersinia in slaughter pigs, synantropic animals and workers in meat products in a defined region]. | in 15 selected stocks in the strakonice district, 507 slaughter pigs, 708 small terrestric mammals and 110 free-living birds were examined in a two-year period (1986-1987) to study the occurrence of carriers of yersiniae and their elimination. rectal smears from 243 persons working in livestock production were examined in the same way. standard bacteriological methods, recent examination procedures (aulisio et al., 1980; aldová, 1981) and a diagnostic antiserum (03 imuna sarisské michalany) were ... | 1989 | 2588433 |
| heat resistance of campylobacter and yersinia strains by three methods. | two methods of determining the heat resistance of bacteria, a glass cup and a test tube method, were compared with a method using capillary tubes. three strains of yersinia enterocolitica, one of campylobacter jejuni and two of c. coli were tested in physiological saline. the differences between the results obtained by the glass cup method and the reference method were not statistically significant for five strains and were small also for the other, a yersinia strain. d values obtained by the gl ... | 1989 | 2592291 |
| binding to collagen by yersinia enterocolitica and yersinia pseudotuberculosis: evidence for yopa-mediated and chromosomally encoded mechanisms. | binding of yersinia enterocolitica and yersinia pseudotuberculosis strains to type i, ii, and iv collagens has been studied. wild-type strains which harbored the 40- to 50-megadalton virulence plasmid specifically bound all three types of collagen. curing of the virulence plasmid or tn5 insertion in the yopa gene encoding the temperature-inducible outer membrane protein yop1 abolished the binding of all three collagen types to y. enterocolitica and type i and ii collagens to y. pseudotuberculosi ... | 1989 | 2592347 |
| medicines--advice on their use in animals. | | 1989 | 2595961 |
| monoclonal antibodies reacting specifically with francisella sp. | twenty two hybridoma strains producing monoclonal antibodies against francisella tularensis atcc 6223, var. tularensis, were characterized. in an enzyme-linked-immunosorbent-assay (elisa) using formaldehyde fixed bacteria as antigens, neither cross-reactions with six different brucella spp., with yersinia enterocolitica 0:9 nor with two biotypes of yersinia pseudotuberculosis could be detected. the antibodies gave comparable titres with the three strains of f.tularensis tested. elisa binding stu ... | 1989 | 2596200 |
| serological investigations of children in iran for campylobacter, yersinia and shigella. | serological investigations for campylobacter, yersinia and shigella in hospitalized children (different hospitals) in iran revealed a contamination rate of 15% for campylobacter, up to 19% for yersinia and between 1 and 12% for the various strains of shigellae. in diarrhoeal diseases the possibility of an infection with campylobacter, yersinia and shigellae must be considered. | 1989 | 2599389 |
| [infectious diarrhea in the adult]. | infectious diarrhoeas are usually divided into two types; toxinogenic and invasive. invasive diarrhoeas are copious and responsible for dehydration which is the principal clinical sign; mucosal lesions and bacteraemia are absent. the most typical of toxinogenic diarrhoeas is cholera, but enterotoxicogenic e. coli and aeromonas infections have similar clinical features. in invasive diarrhoeas the responsible microorganisms penetrate into the epithelial cells of the intestine, producing fever and ... | 1989 | 2602888 |
| electrophoretic characterisation of the outer membrane proteins of yersinia pestis isolated in north-east brazil. | the outer membrane proteins of 38 yersinia pestis isolates from all known plague foci of north-east brazil were analysed by sds-page. approximately 20 bands were consistently found in all strains analysed and 11 were selected for comparative studies. although qualitative differences among the electrophoretic profiles of outer membrane proteins of wild y. pestis isolates were not observed, quantitative alterations were clearly noted for most of these proteins. no particular quantitative alteratio ... | 1989 | 2606164 |
| [the participation of the adrenergic receptors of the peritoneal leukocytes from white mice in the mechanism of the cellular control of the action of yersinia pestis adenylate cyclase]. | y. pestis extracellular adenylate cyclase suppresses the oxidation metabolism of peritoneal leukocytes in white mice. the character of the modulating action of the enzyme in its interaction with the target cell infers the participation of adrenergic receptors. | 1989 | 2609813 |
| [enhanced blocking capacity of the plague microbe in the body of the flea]. | during the stay of plague microbe in the organism of flea, under the effect of bactericidal factor increases its ability to form the block of proventriculus in these insects. thus, in fleas infected on white mice, which were infected in a natural way through blocked individuals, the block of proventriculus appears 2 to 3 times as often (59.5 and 34.0%) as in insects (15.02%) infected on animals, which were infected artificially. | 1989 | 2616196 |
| rheumatological lesions in individuals with human immunodeficiency virus infection. | one hundred and twenty-three patients with human immunodeficiency virus infection have been referred to rheumatologists at our hospitals between october 1985 and april 1989 because of musculoskeletal symptoms. thirty-four homosexual men presented with acute, peripheral, non-erosive arthritis (mean number of four joints affected) with the knees being involved in 23. other features developing concurrently with arthritis included psoriasis, keratoderma blenorrhagica, plantar fasciitis, urethritis, ... | 1989 | 2616738 |
| [determination of the sanitary quality and detection of salmonella spp and yersinia enterocolitica in ice cream]. | in order to determine the sanitary quality of ice-creams and the presence of pathogenic or potentially pathogenic species of salmonella and yersinia enterocolitica, 50 samples from 5 different industrial and semi-industrial producers in san luis (argentine) were examined. the enumeration of coliforms was positive for all the samples with values less than or equal to 20/g. fourteen per cent of the samples were positive for the investigation of staphylococcus aureus in 1 g. for the plates enumerat ... | 1989 | 2616772 |
| cl. difficile as possible cause of reactive arthritis. | | 1989 | 2617234 |
| the black death past and present. 1. plague in the 1980s. | this paper considers firstly the epidemiology of plague in the 1980s. the largest number of cases occurred in tanzania. most cases were in children and young adults; in the usa the male:female ratio was about 2:1. plague had a seasonal distribution. almost all cases arose from bites of infected rodent fleas, and rattus spp. were the most important reservoir hosts. virulence is linked with the presence of a 45 mda plasmid. the predominant clinical form of plague is bubonic, followed by septicaemi ... | 1989 | 2617596 |
| avidity of antibodies against released proteins of yersinia spp: comparison of patients with or without reactive arthritis. | the avidity of igm, igg, and iga class antibodies against virulence plasmid encoded proteins of yersinia, so called released proteins (rps), was studied in the serum samples of 22 patients with yersinia triggered reactive arthritis and 22 with uncomplicated yersiniosis. the avidity of anti-rp antibodies did not differ significantly between the patient groups, even though the total amount of iga class anti-rp antibodies was significantly higher in patients with arthritis than in those with uncomp ... | 1989 | 2619352 |
| yersinia enterocolitis. | | 1989 | 2621208 |
| [yersinia enterocolitica--its multiplication on nutrient media containing rhamnose, raffinose and sodium succinate]. | the kinetics of growth in vitro of strains yersinia enterocolitica, serovars 0:3, 0:5, 0:8 and 0:9, on culture media containing rhamnose, raffinose and sodium succinate and at different temperatures of cultivation (4 degrees, 25 degrees and 37 degrees c) was characterized. it was established, that all the yersinia enterocolitica serovars tested, cultivated at 25 degrees c, had the highest growth rate. a significant activation of growth at this temperature was observed when l-rhamnose and especia ... | 1989 | 2624160 |
| [the in vitro multiplication kinetics of yersinia pseudotuberculosis--the effect of rhamnose, raffinose and sodium succinate]. | the reproductive potentials of strains yersinia pseudotuberculosis serovars i, ii, iii, iv and v cultivated at different temperatures on media containing rhamnose, raffinose and sodium succinate were examined comparatively. it was established that the growth of serovars i, ii and iii was activated by sodium succinate at temperatures 4 degrees and 25 degrees c, while serovars iv and v showed lower growth rate regardless of the substrate used. at 37 degrees c d-raffinose activated the growth of th ... | 1989 | 2624161 |
| yersiniosis in czechoslovakia. results of a long-term study involving microbiological laboratories of the hygienic service. | the paper reports on 17 years' experience of yersiniosis surveillance. despite the fact that the microbiological identification of y. enterocolitica 03 was successfully carried out by virtually all the microbiological laboratories of the hygienic service, reported cases of yersiniosis account for only one sixtieth part of alimentary infections. enteric disease is the prevailing form of yersiniosis, extraintestinal ones being very rare. most of the implicated patients were children, namely boys. ... | 1989 | 2625548 |
| [yersinia-induced reactive arthritis]. | twenty-four patients were under observation. it is shown that reactive arthritides requiring surgical treatment are often of yersinia etiology. a preceding episode of acute diarrhea can be revealed in the immediate anamnesis. besides affection of the joints, the clinical picture is characterized by protracted high fever, general toxicosis syndrome, enlarged mesenteric lymph nodes, and, occasionally, enlargement of the liver and spleen. the diagnosis is confirmed by identification of specific ant ... | 1989 | 2625873 |
| the ompc protein of yersinia enterocolitica: purification and properties. | ompc, one of the major outer membrane proteins of yersinia enterocolitica, was isolated and purified to homogeneity. when solubilized at room temperature, this protein appeared on sds polyacrylamide gel electrophoresis as an oligomer. after heating to the temperature of boiling water, the apparent molecular weight of the monomer was 36,000. the incorporation of purified ompc into black lipid membranes resulted in an increase in membrane conductance demonstrating pore-forming activity. the recons ... | 1989 | 2626594 |
| relationships between beta-lactamase production and beta-lactam susceptibility of environmental strains of yersinia kristensenii. | strains of yersinia kristensenii display high susceptibility to carbenicillin (mic90 less than 8 micrograms/ml) in comparison with the majority of environmental strains of yersinia closely related to y. enterocolitica which are resistant to this antibiotic (mic90 greater than 256 micrograms/ml). beta-lactamases of 39 strains of y. kristensenii isolated from foods were analysed by isoelectric focusing and gel electrophoresis of ultrasonically disrupted uninduced cultures. beta-lactamase patterns ... | 1989 | 2626595 |
| [pseudotumor course of yersinia infection]. | | 1989 | 2628612 |
| plasmid composition and virulence-associated factors of yersinia pestis isolates from a plague outbreak at the paraiba state, brazil. | pathogenic yersinia pestis isolates were collected during a plague outbreak at the paraiba state in 1986. the y. pestis isolates were investigated for the presence of virulence-associated factors and plasmid content. all strains analysed were proficient in the expression of the vw and fraction 1 antigens, pigment adsorption and pesticin-fibrinolysin-coagulase production. a similar plasmid profile composed by four plasmid with molecular weight of 60, 44, 14.9, and 6.4 megadaltons (md) was found i ... | 1989 | 2629060 |
| antibacterial spectrum and some other characteristics of an antimicrobial factor produced by yersinia ruckeri. | yersinia ruckeri produces an antibacterial factor which inhibits the growth of a wide spectrum of gram-negative and gram-positive bacteria, though not other strains of y. ruckeri. the antibacterial factor was produced at low temperatures (4-20 degrees c), but not at 37 degrees c. the activity was lost after treatment of the supernatant with chloroform, uv-light and after boiling of the supernatant. one did not succeed in obtaining the antibacterial factor in a sterile solution. | 1989 | 2629502 |
| bacterial and viral causes of acute diarrhoea in children in kuwait. | bacterial and viral causes of acute diarrhoea were studied prospectively for one year in 343 hospitalised young children in kuwait. in 288 (84%) patients, one or more pathogens were identified compared with 12 of 86 (13.9%) children admitted with diseases other than diarrhoea (p less than 0.01). forty-four (12.9%) of the patients were infected with two or more pathogens. viral agents detected in the stools were rotaviruses (40.2%), enteric adenoviruses (1.7%), and enteroviruses (1.5%). enterobac ... | 1989 | 2632640 |
| [sensitivity of yersinia pestis to antibiotics: 277 strains isolated in madagascar between 1926 and 1989]. | the antimicrobial susceptibility of 277 strains of yersinia pestis was studied using broth microdilution panel. in recent strains, trimethoprim, cotrimoxazole and ampicillin were the most active of the antibiotics tested (mics less than 2 mg/l). all strains were inhibited by 16 mg/l of kanamycin and sulfamethoxazole, 32 mg/l of sulphadiazine and sulfanilamide, and 64 mg/l of sulfamethoxypyridazine. doxycycline, minocycline, chloramphenicol, demeclocycline, tetracycline, oxytetracycline and chlor ... | 1989 | 2633713 |
| [study of the plasmid expression of malagasy strains of yersinia pestis from 1926 through 1988]. | | 1989 | 2633714 |
| [the effect of mg 2+ ions on the properties of various strains of yersinia pestis]. | the strains of yersinia pestis that restrict their growth on the media deficient for mg2+ ions at 37 degrees c have been found. the bacterial cell lysis is registered under these conditions. the effect of yersinia pestis own plasmids on the level of growth restriction in the absence of mg2+ ions has been studied. the phenomenon is not connected with the presence of the plasmid determining ca2(+)-dependence. the presence of 6md plasmid coding for pesticinogenicity increased the frequency of colon ... | 1989 | 2634816 |
| struvite crystal precipitation by different phenotypes of yersinia. | extracellular formation of struvite crystals by yersinia enterocolitica, y. frederiksenii, y. kristensenii and y intermedia strains was investigated. precipitation of crystalline structures was found with 19 of the 187 strains tested, its formation being more frequently observed at 25 degrees c than at 37 degrees c. production of struvite was greater in y. enterocolitica strains belonging to biotype 1, serogroup 0:7,8 and lysotype xz, than observed in other phenotypes. quantitative assay in a li ... | 1989 | 2635129 |
| growth studies on xenic cultures of entamoeba gingivalis using established media. | wantland's egg medium, modified shaffer-frye (msf) medium and tryptose-trypticase-yeast extract-serum-blood (tty-sb) medium were compared with variations of the latter two media for their ability to support xenic growth of entamoeba gingivalis. wantland's egg medium was unsuitable for growth of e. gingivalis. accompanying bacteria became resistant to penicillin and streptomycin, overwhelming the amoeba culture. msf medium was also unsuitable for the cultivation of e. gingivalis. bacterial growth ... | 1989 | 2635159 |
| [bacteriologic and serologic studies of an outbreak of plague in the state of paraíba, brazil]. | during a plaque outbreak in the borborema plateau focus (paraiba), bacteriological and serological studies were carried out in material from 452 patients (48 positives), 1,938 rodents and other small mammals (75 positives), 4,756 dogs (141 positives) and 2,047 cats (57 positives) obtained from 41 counties (out of which, 21 produced positive samples). twenty yersinia pestis strains isolated from material from 3 patients and 17 rodents, displayed biochemical reactions, virulence factors, antibioti ... | 1989 | 2635752 |