Publications

TitleAbstractYear
Filter
PMID(sorted ascending)
Filter
salmonella infection of the biliary and intestinal tract of wild opossums.bacteriologic cultures were taken from the mesenteric lymph nodes, biliary tract, blood, liver, spleen and pancreas of opossums (didelphis virginiana) obtained directly from the wild for use as research animals. the overall incidence of salmonellosis outside the intestinal tract was 61% among 18 opossums. salmonella was recovered from the gallbladder of six (33%) animals, indicating chronic biliary tract infection. among these six animals, translocation of salmonella to regional lymph nodes was ...19911849588
[infection of a neoplastic ovarian cyst caused by salmonella enterica subspecies enterica, serotype enteritidis]. 19911863613
[serotypes of salmonella enterica in sewage effluent from zaragoza. comparison with clinical isolates. 1982-1989].between 1982 and 1989, 560 salmonella enterica strains belonging to 63 serovars, were isolated from zaragoza urban sewage. during the same period of time there were 45 different serovars isolated from faeces of patients from a hospital (in the same city). only a reduced number of serovars comprised the majority of the human and environmental isolates. an approximately rectilinear relationship is shown between the isolated strains number and the number of different serovars, in non human salmonel ...19911867775
characterization of a salmonella choleraesuis mutant that cannot multiply within epithelial cells.a mutant of salmonella choleraesuis was identified that could invade (enter) and penetrate through polarized monolayers of caco-2 and mdck epithelial cells at normal levels but was defective for intracellular multiplication within these cells. it was also able to survive inside cultured j774 macrophage cells. these bacteria remained inside membrane-bound vacuoles, which coalesced at later times in the perinuclear region of the epithelial cell. this mutant exhibited slightly slower growth rates i ...19911913359
alternative methods of attenuating salmonella species for potential vaccine use.because of their invasive properties, salmonella species are uniquely suited for use as live oral vaccines, and mutants attenuated in general metabolic functions show promise as vaccine strains. we have identified a salmonella choleraesuis transposon mutant which is deficient in abilities to attach to, invade or penetrate through animal cells. this mutant is avirulent in mice, yet is able to persist within the liver, spleen and gut-associated lymphoid tissue for periods which may be adequate for ...19901966254
characterization of strains of salmonella enterica subsp. enterica serovar wien isolated in italy: an epidemiological evaluation.in the years 1987-1988, 110 strains of wien serovar were isolated from a gastroenteritis outbreak in a neonatal unit in palermo (sicily). these strains showed different drug resistance patterns and plasmid profiles. analysis of endonuclease restriction fragments of chromosomal dna by hybridization with e. coli rrna has demonstrated that a single bacterial clone or its derivatives were responsible for the outbreak. furthermore, the study of 139 strains, isolated since 1970 from different geograph ...19901982334
a pathological study on the virulence of salmonella choleraesuis associated with 50-kilobase plasmid in mice.the virulence of salmonella choleraesuis associated with 50-kilobase plasmid was assessed by the pathology produced in mice. the strains used in this study were plasmid-contained rf-1, plasmid-cured 31n-1 and plasmid-reintroduced 31n-1-t. mice were intraperitoneally inoculated with sublethal doses of these bacteria and chronologically necropsied. pathologically, the plasmid-positive (p+) cases were distinctly different from the plasmid-negative (p-) ones, especially in the peritoneal fluids and ...19912015199
[increase in ampicillin resistance in salmonella enterica]. 19912023473
human infection with salmonella dublin.twenty-seven cases of human infection with salmonella dublin were identified over a 12-year period at the university of california at san diego-affiliated hospitals. important epidemiologic risk factors were the ingestion of unpasteurized dairy products or treatment with nutritional therapy that included raw calf-liver extracts. nearly all patients had underlying chronic diseases. like salmonella choleraesuis, s. dublin infections were associated with a high incidence of bacteremia (91%), metast ...19912030643
an unusual presentation of salmonellal aortitis.our patient represents what we believe to be the first documented case of salmonella choleraesuis aortitis presenting as a salmonellal empyema in an elderly diabetic man. although s choleraesuis often causes septicemia, its absence should not lead one to forget the pathogenic nature of and high mortality associated with this organism. aggressive efforts must be made to search for endovascular infection, because cures can be achieved only with surgical intervention and prolonged antibiotic therap ...19912035095
abortion and serological reaction of ewes after conjunctival instillation of salmonella enterica subsp enterica ser abortusovis.the aim of the experiment was to evaluate in pregnant ewes the clinical, bacteriological and serological effects of conjunctival instillation of s abortusovis. an individual dose of 1 x 10(10) viable s abortusovis were administered to 20 ewes 92 d after mating. among 18 pregnant ewes, 8 aborted 110 +/- 13 d after mating, 4 had stillborn lambs and 6 a clinically normal lambing (114 +/- 1.3 d). s abortusovis was isolated from placentas, swabs and foetuses of the 12 lambings. evolution of "h" agglu ...19912042907
[bacterial diarrhea in infancy: epidemiologic study of 256 cases].infectious diarrhoea are common causes of morbility in children. although viral agents are responsible for the majority of cases of acute diarrhoea during infancy, bacterial infections are also well recognized as causes of them. 256 patients with diarrhoea due to a bacterial pathogen were studied to determine the importance of different epidemiologic factors. the study group comprised 151 boys (59%) and 105 girls (41%) aged between first month and 14 years. family history of acute diarrhoea was ...19912064148
rrna probing of chromosomal dna of epidemic and sporadic isolates of salmonella enterica subsp. enterica serovar kottbus from northern and southern italy.fifty-two strains of salmonella enterica subsp. enterica serovar kottbus, identified at the centres of enterobacteriaceae of northern and southern italy, were investigated by molecular genetic methods. thirteen isolates were recovered during two food-poisoning outbreaks that occurred in may 1987 in lombardy. the rdna gene restriction patterns, obtained by probing endonuclease cleaved chromosomal dna with photobiotin labeled escherichia coli rrna, revealed some heterogeneity among strains isolate ...19902091942
[salmonella enterica in the avilés health district (asturias). microbiological, clinical, and epidemiological aspects].the results of the follow up of the salmonella enterica infections seen in the hospital san agustin in avilés (asturias) from 1984 through 1987 are reported. the incidence was 19.49% of the overall number of fecal cultures and 0.47% of the overall number of blood cultures. 326 patients were involved: acute gastroenteritis (314 cases, with bacteremia in 10), typhoid fever (7 cases) and other infections (5 cases); 172 patients required hospital attention and 115 antimicrobial therapy. the morbidit ...19902094387
experimental ovine salmonellosis (salmonella abortusovis): pathogenesis and vaccination.salmonella enterica subsp. enterica ser. abortusovis, a sheep-adapted serotype, causes a contagious disease. abortion is the major symptom and the main source of contamination. research on this ovine disease may aid farmers, but may also contribute to comparative biological knowledge. innate resistance partly controlled by the ity locus, increased resistance to reinfection and humoral and t-cell-mediated immunity were observations gained with a murine model. in ewes, abortion regularly occurs fo ...19902101486
[microbiological evaluation of chemical disinfectants for household use].five disinfectants for household use were advertised on television during 1988 and the first half of 1989. the products were tested by a qualitative (use-dilution with 10 carriers, a conventional and simplified, adapted method) and a qualitative, adapted method with a view to evaluating their antimicrobial activity. the active compounds of the products, according to their respective labels were: 1--parachlorophenol (0-benzil) 0.1%; 2--eter 2.4.4' chloro (iii) 2' hydroxiphenylic 0.1%; 3--n-alkyl ...19902120768
[etiological research on acute gastroenteritis in the city of cádiz].we researched the microbial etiology of 5,836 diarrheal processes in outpatients and inpatients at the social security hospital in cádiz, for the purpose of evaluating their microbiological and epidemiological characteristics. bacterial gastroenteritis accounted for 51.6% of the cases, while 31.7% were viral and 16.6% were protozoal in origin. salmonella enterica (35.6%) is the most frequently involved microorganism, especially in the summer, followed very closely by rotavirus (31.7%). the incid ...19902129735
mice vaccinated with a non-virulent, aromatic-dependent mutant of salmonella choleraesuis die from challenge with its virulent parent but survive challenge with salmonella typhimurium.balb/c mice given a live vaccine of an aroa mutant of salmonella choleraesuis by intraperitoneal (i.p.) injection were not protected against i.p. challenge with its virulent parental strain but were protected against i.p. challenge with either of two virulent strains of salmonella typhimurium (o [1], 4, [5], 12). vaccination with a live vaccine of s. typhimurium aroa protected against challenge with s. typhimurium but not with s. choleraesuis. intraperitoneal administration of either aroa strain ...19902139129
[sensitivity of enteropathogenic bacteria to furazolidone].the sensitivity in vitro of 348 strains of 18 enteropathogen agents to furazolidone was investigated during the period of 1987-1989. all strains of shigella sonnei (17), s. flexneri (17), s. boydii (16), escherichia coli enteropathogen (40), e. coli enteroinvasive (20), campylobacter jejuni (50), vibrio cholerae 01 (5), vibrio cholerae non 01 (5), v. parahaemolyticus (5), v. alginolyticus (2), aeromonas hydrophila (5), a. caviae (5), a. sobria (5), and plesiomonas shigelloides (12) were sensitiv ...19902152485
identification and mapping of mba regions of the salmonella choleraesuis virulence plasmid pkdsc50 responsible for mouse bacteremia.a restriction cleavage map was constructed for pkdsc50, the 50 kb virulence plasmid of salmonella choleraesuis. using tn1 transposon-insertion mutagenesis, we obtained 19 mutant strains of s. choleraesuis with a diminished ability to cause bacteremia in the mouse. pkdsc50::tn1 dna of the mutant strains was extracted and introduced into a pkdsc50-cured s. choleraesuis strain. nine of the 19 transformants showed the diminished ability to cause mouse bacteremia. tn1-insertion of the nine mutant str ...19902159103
peroxidase-antiperoxidase and immunogold labeling of salmonella typhimurium and salmonella choleraesuis var kunzendorf in tissues of experimentally infected swine.peroxidase-antiperoxidase immunoenzymatic labeling and immunogold labeling techniques were evaluated for microscopic detection and location of salmonella organisms in tissues of experimentally infected swine. salmonella typhimurium and salmonella choleraesuis var kunzendorf were labeled specifically by the peroxidase-antiperoxidase technique in paraffin-embedded tissues of infected swine for conventional light microscopy and by postembedding immunogold labeling on ultrathin sections for electron ...19902183652
plasmid profiles as an epidemiological marker for salmonella enterica serotype enteritidis foodborne outbreaks.the incidence of enteritidis serotype of salmonella enterica in salmonellae infections has steadily increased in spain from 27.1% in 1982 up to 63.4% in 1987. given this high incidence, we have studied the plasmid profiles of enteritidis isolates to subclassify them. different profiles were observed in 50 isolates. in 13 enteritidis serotype outbreaks, up to 5 different plasmid profiles were found. each outbreak correlated with a single plasmid profile except in one case where plasmids of two di ...19902206470
salmonella interactions with polarized human intestinal caco-2 epithelial cells.polarized monolayers of the human intestinal epithelial caco-2 cell line were grown on permeable filters and infected apically with either salmonella choleraesuis or salmonella typhimurium. both salmonella species penetrated through the monolayer, requiring 2 h before appearing in the basolateral medium. both species caused a loss in transepithelial resistance by 3-4 h, and the monolayer's integrity was completely disrupted by 6 h. scanning and transmission electron microscopy revealed that the ...19902230236
[epidemiology and clinical evaluation of salmonella enteritis].there was a local epidemic of salmonella enteritis in southern part of taiwan during the summer of 1989. from july through september 1989, a total 162 cases of enteritis were analysed in chang gung memorial hospital, kaohsiung. among them, 46 cases were proved to be salmonella enteritis by stool and/or blood culture. the identified flora group mainly group b (salmonella typhimurium, 87%), group c (salmonella choleraesuis, 6.5%) and group d (salmonella enteritidis, 6.5%). the drug resistance of s ...19902282566
nucleotide sequence of a gene encoding a 29 kda polypeptide in mba region of the virulence plasmid, pkdsc50, of salmonella choleraesuis. 19902315022
nucleotide sequences of genes encoding 32 kda and 70 kda polypeptides in mba region of the virulence plasmid, pkdsc50, of salmonella choleraesuis. 19902336400
vaccinal properties of salmonella abortusovis mutants for streptomycin: screening with an ovine model.living attenuated vaccines may help control infection with salmonella enterica subspecies enterica ser abortusovis in sheep without constraints incompatible with husbandry. virulence and immunogenicity of 2 abortusovis streptomycin-dependent strains and 3 reverse mutants were compared in sheep, the virulent parental strain abortusovis 15/5 being used as reference. reduction of virulence with conservation of some immunogenicity was demonstrated for the 5 mutant strains after intravenous or subcut ...19902344139
bacteriophages mediating somatic antigenic conversion in salmonella cholerae-suis: their isolation from sewage and other salmonella serotypes possessing the somatic 6 antigen.bacteriophages which mediate the conversion of the o somatic antigen of salmonella cholerae-suis from the 6(2)7 to the 6(1)7 phenotype have been isolated from two strains of s. newport and one of s. muenchen, and also from sewage collected from two areas where there have been no reports of s. cholerae-suis infection for several years. the phages differed from each other by cross-resistance tests.19862426391
the effects of o-antigen character and enterobacterial common antigen content on the in vivo persistence of aromatic-dependent salmonella sp. live-vaccine strains.aromatic-dependent (aro) derivatives of salmonella choleraesuis like aro s. typhimurium are non-virulent but, unlike them, are ineffective as live vaccines in mice, given i.p. an aro derivative of s. choleraesuis did not persist in the liver and spleen (res) of mice after i.p. inoculation whereas a similar derivative of s. typhimurium persisted. s. choleraesuis (o group c1; o-6,7) and s. typhimurium [o group b; o-(1),4(5),12] differ in o antigen of lps, determined by chromosomal locus, rfb. thre ...19872461504
[multicenter study on bacterial gastroenteritis in regional hospitals of the province of barcelona. group of microbiologists of the regional hospitals of catalonia].a retrospective analysis of 26,901 coprocultures is reported. of these, in 5,847 (21.7%) an enteric pathogen was isolated. the positivity rate in adults was 21.0%, and 22.1% in children. statistically significant differences (p less than 0.001) were found in the number of overall isolates throughout the years for both age groups. the most common enteropathogen was salmonella enterica spp i non typhi (59.4% of the isolates in children and 76.9% in adults). the rate of isolation of campylobacter s ...19892490674
[phenolic coefficient in the microbiological evaluation of disinfectants for hospital and household use].the phenolic coefficient of 24 disinfectants (six for hospital and the remainder for household use) commercialized in s. paulo were verified. the active compounds found were phenol, quaternary ammonium, formaldehyde, ethanol and chlorine, some of them in association. the microorganisms used were staphylococcus aureus atcc 6538, pseudomonas aeruginosa atcc 15442 and salmonella choleraesuis atcc 10708. the values of the phenolic coefficient ranged from 58.3 to 0.1. the hospital disinfectants showe ...19892515584
molecular cloning and analysis of the incompatibility and partition functions of the virulence plasmid of salmonella typhimurium.the incompatibility functions (inc) of the virulence plasmid of salmonella typhimurium lt2 were initially located in a 4.3 kb region near the repa locus of the plasmid. expression of inc required the presence, in cis or in trans, of two distinct dna regions of the fragment. these regions, maximally 0.3 kb and 0.6 kb in size, were separated in the fragment by c. 3.0 kb. this intervening dna encoded two proteins, of mr values 37 kda and 40 kda. the promoter for the 37 kda protein lay in or near on ...19892556621
porcine neutrophil function in the presence of virulent and avirulent salmonella choleraesuis.porcine polymorphonuclear leukocytes (pmnls) may be activated by bacteria to begin phagocytosis followed by oxidative and non-oxidative mechanisms of killing. the purpose of this study was to identify differences between virulent and avirulent salmonella choleraesuis (s. choleraesuis) strains, 38 and 9 respectively, in their interactions with porcine pmnls using five different assays. (1) staphylococcus aureus (s. aureus) ingestion was determined by exposure of porcine pmnls to a mixture of s. c ...19892560864
vaccination route, infectivity and thioglycollate broth administration: effects on live vaccine efficacy of auxotrophic derivatives of salmonella choleraesuis.an aromatic-dependent, therefore non-virulent, derivative of a mouse-virulent strain of salmonella choleraesuis previously shown not to be effective as a live vaccine when given intraperitoneally (i.p.) to itys mice, was administered to balb/c mice. two doses given i.p. or by feeding did not protect against i.p. or oral challenge with 50 to 5000 ld50 of the virulent ancestor strain. by contrast two doses given intravenously (i.v.) gave almost complete protection against i.p. or oral challenge wi ...19892622327
prevalence of salmonella serotypes isolated in spain from human and non human sources (1983-1987).salmonella serotypes over a five year period were studied in order to know their prevalence in spain. the salmonella reference centre received a total of 17,612 strains from 1983-1987. the majority (16,133) were of human origin and only 1,479 strains were isolated from non-human sources. the serotyping yielded 100 different serotypes, salmonella enterica serotype enteritidis (8) being the commonest in both groups, 61.18% of human origin and 31.91% of non-human origin. salmonella enterica serotyp ...19892629788
long-term suppression of salmonella aortitis with an oral antibiotic.an aneurysm of the aortic arch infected with salmonella choleraesuis is presumed to be inevitably fatal unless the patient receives corrective surgery and antibiotic therapy. i report such a case in a patient who refused surgery and who has been maintained free of infectious symptoms for over 26 months using trimethoprim-sulfamethoxazole administered orally.19892786398
in vitro activity of tigemonam against urinary tract pathogens.tigemonam's in vitro activity was compared with that of aztreonam, cefotaxime, gentamicin, and norfloxacin. thirty-two strains of pseudomonas and 960 strains of enterobacteriaceae were studied using the agar dilution method (including escherichia coli, klebsiella pneumoniae, klebsiella oxytoca, enterobacter sp., serratia marcescens, proteus mirabilis, proteus vulgaris, morganella morganii, and salmonella enterica). tigemonam displayed good activity against enterobacteriaceae. minimum inhibitory ...19892809699
multiple typing of strains of salmonella enterica subsp. bongori ser. 48:z35:- isolated in southern italy.in 1984-87, 10 isolates of salmonella enterica subsp. bongori ser. 48:z35:-, 9 of human source, were identified at the southern italy centre of enterobacteriaceae. this serotype had never been identified in southern italy before 1984. the combined use of different typing methods, with particular reference to restriction enzyme fingerprinting of plasmid and chromosomal dna, supports the hypothesis that all bongor serovars derive from a single strain.19882855307
clonal nature of salmonella typhi and its genetic relatedness to other salmonellae as shown by multilocus enzyme electrophoresis, and proposal of salmonella bongori comb. nov.crude cell extracts of 26 isolates of salmonella serotype typhi (s. typhi) and 48 other salmonella isolates representing 28 serotypes and seven dna hybridization subgroups were analyzed for electrophoretic variants of 24 metabolic enzymes by starch gel electrophoresis. all strains of s. typhi had identical isoenzyme patterns, indicating that they were a single clone. all of the enzymes detected in the remaining strains were polymorphic, and the degree of genetic variation was quite high. the ave ...19892915026
test of the virulence and live-vaccine efficacy of auxotrophic and gale derivatives of salmonella choleraesuis.aromatic compound-dependent (aro) derivatives of three mouse-virulent strains of salmonella choleraesuis (salmonella cholerae-suis) were constructed and shown to be nonvirulent for mice (intraperitoneal [i.p.] 50% lethal dose [ld50], greater than 5 x 10(6) cfu). a pur derivative, and a thy derivative, each of a different virulent parent, remained moderately virulent (i.p. ld50s for balb/c mice, ca. 10(5) and 5 x 10(4) cfu, respectively). tested as live vaccines i.p., the aro strains were ineffec ...19873104209
evaluation of penicylinders used in disinfectant testing: bacterial attachment and surface texture.two possible deficiencies in the aoac use-dilution method for registration of chemical disinfectants by the environmental protection agency are examined: (1) the physical disparities among brands of penicylinders and (2) the variability of bacterial numbers on penicylinders depending upon test strain and penicylinder surface texture. textural differences of 2 brands of stainless steel penicylinders, one brand of porcelain, and one brand of glass were assessed by scanning electron microscopy. a c ...19873119561
ineffectiveness of hospital disinfectants against bacteria: a collaborative study.a collaborative study was undertaken to assess the degree of variability in disinfectant efficacy test results among laboratories that routinely perform the association of official analytical chemists (aoac) use-dilution method. eighteen laboratories tested identical samples of six epa-registered, hospital-grade disinfectants (three phenolics and three quaternaries) at the manufacturers' recommended use-dilution using only those modifications of the method approved by the aoac use-dilution task ...19873123412
bacterial numbers on penicylinders used in disinfectant testing: use of 24 hour adjusted broth cultures.the current aoac use-dilution methods of disinfectant efficacy testing require the use of 48-54 h unadjusted broth cultures of salmonella choleraesuis, staphylococcus aureus, and pseudomonas aeruginosa for the inoculation of stainless steel penicylinders. the use of unadjusted broth cultures contributes to noncomparable numbers of organisms on penicylinders among the test strains due to relative efficacy of bacterial attachment to penicylinders and to bacterial numbers in broth. to achieve compa ...19883129396
comparison of the invasion strategies used by salmonella cholerae-suis, shigella flexneri and yersinia enterocolitica to enter cultured animal cells: endosome acidification is not required for bacterial invasion or intracellular replication.strains of escherichia, salmonella, shigella and yersinia actively enter eukaryotic cells. several techniques were used to compare and contrast the invasion mechanisms of salmonella cholerae-suis, yersinia enterocolitica and shigella flexneri. three animal cell lines (cho, hep-2 and mdck) were examined for susceptibility to bacterial entry by these strains. levels of intracellular bacteria varied widely between cell lines, but cho cells were the most susceptible to bacterial invasion, hep-2 inva ...19883147700
quantitative evaluation of bacteria washed from stainless steel penicylinders during aoac use-dilution method.stainless steel penicylinders inoculated separately with test bacteria (salmonella choleraesuis, pseudomonas aeruginosa, or staphylococcus aureus) are used in the aoac use-dilution method (udm) for disinfectant efficacy testing. numbers of bacteria remaining on penicylinders were quantitatively assessed to determine if cells are washed from the penicylinders after a 10 min exposure to phosphate buffer dilution water (pbdw). inoculated penicylinders were also examined by scanning electron microsc ...19883148609
disinfectant testing using a modified use-dilution method: collaborative study.an initial collaborative study of the aoac use-dilution method (udm), used for bactericidal disinfectant efficacy testing, demonstrated extreme variability of test results among the 18 laboratories testing identical hospital disinfectants. in an effort to improve the method, 32 changes were made by the udm task force. these changes represented improvements in quality assurance practices and elimination of method variability; however, the basic framework of the method was retained. a second colla ...19883149273
occurrence of h-antigen z66 of r phase in cultures of salmonella serovar typhi originated from indonesia.eighteen strains of salmonella choleraesuis subsp. choleraesuis serovar typhi (s. typhi) isolated from blood of patients in japan who had visited indonesia and returned before the onset of typhoid fever were found to possess the h-antigen z66 reported by guinée et al. (1981) but had the naturally occurring h-antigen d. they were not lysed by any of the phages of the vi phage typing system. after passage through semi-solid medium containing h-z66 antiserum, h-antigens of 11 of 18 cultures with h- ...19883181315
quantitative analysis and partial characterization of cytotoxin production by salmonella strains.the pathogenesis of the wide-spectrum human disease caused by salmonella species is poorly understood. cytotoxin production by other enteric pathogens has been increasingly investigated recently, and data are accumulating regarding the role of cytotoxins in enteric infections and hemolytic uremic syndrome. we studied the cytotoxic activity of 131 salmonella strains of the major serotypes, including 94 strains of salmonella enteritidis, 12 strains of salmonella typhi, and 25 strains of salmonella ...19883182072
evidence of correlation between 50-kilobase plasmid of salmonella choleraesuis and its virulence.a plasmid of 50 kilobases (kb) was found in all six strains of salmonella choleraesuis studied, originally isolated from septicemic swine or man. a derivative cured of the 50 kb plasmid was isolated after treatment with novobiocin, and its virulence compared to that of the parent by intraperitoneal injection into mice. the lethality of the parent strain was found higher than that of the cured strain. with a sublethal number of cells of the parent strain injected, the spleen, liver and lymph node ...19883200162
clinical safety and efficacy of ofloxacin.in this study we report about the efficacy and tolerability of ofloxacin in the treatment of 15 patients with severe and moderately severe infections including osteomyelitis (5), soft tissue infections (5), salmonellosis in aids patients (2), acute or chronic pulmonary infections (2) and mediastinitis (1). the following organisms were isolated in culture specimens: staphylococcus aureus (4), pseudomonas aeruginosa (4), staphylococcus epidermidis (3), serratia marcescens (1), escherichia coli (1) ...19883224401
abscess thyroid due to salmonella cholerae-suis--a rare presentation of salmonellosis. 19883229806
[the aerobic intestinal flora of the microchiropteran bat chaerephon pumila in madagascar].from stools of 88 malagasy insect eater bats chaerephon pumila, a large amount of bacterial strains were isolated. twenty different species were recognized, most of them belonged to enterobacteriaceae family. eight strains were identified as salmonella enterica subsp. enterica o48: -; 1.5, despite many atypical characters. strains of salmonella enteritidis, koserella trabulsii, kluyvera sp., odc negative serratia marcescens, atypical hafnia alvei... were also identified.19883240566
[acute bacterial sacroiliitis caused by salmonella cholerae-suis].a 17-year-old schoolboy was admitted to hospital because of one-sided pelvic pain of uncertain aetiology and fever gradually rising over several days. bacteriological analysis of blood cultures, skeletal scintigraphy and computed tomography revealed sacroiliitis caused by salmonella cholerae-suis. specific antibiotic treatment quickly stopped all symptoms and cured the infection. radiologically there remained sclerosis of the sacro-iliac joint.19883262497
penetration of salmonella through a polarized madin-darby canine kidney epithelial cell monolayer.many intracellular parasites are capable of penetrating host epithelial barriers. to study this process in more detail we examined the interactions between the pathogenic bacteria salmonella choleraesuis and polarized epithelial monolayers of madin-darby canine kidney (mdck) cells grown on membrane filters. association of bacteria with the mdck cell apical surface was an active event, requiring bacterial rna and protein synthesis, and was blocked by low temperatures. salmonella were internalized ...19883292541
effects of infection with enterobacteriaceae enteropathogens on subsequent infection with ascaris suum in the laboratory mouse.prior to infection with ascaris suum, icr strain mice were inoculated with salmonella typhisuis intraperitoneally or via gastric gavage. similarly, salmonella cholerae-suis var. kunzendorf, salmonella typhimurium and enterotoxigenic escherichia coli were administered to mice via gastric gavage 2 weeks prior to a. suum inoculation. previous inoculation with s. typhisuis, via the intraperitoneal or gastric gavage routes and s. cholerae-suis var. kunzendorf decreased recovery of ascarid larvae from ...19873296422
standardization of bacterial numbers of penicylinders used in disinfectant testing: interlaboratory study.an interlaboratory study was conducted to evaluate a method of standardizing bacterial numbers on penicylinders used in the aoac use-dilution method (4.007-4.015) of disinfectant testing. eight participating laboratories followed a broth adjustment method using their media and stock cultures of staphylococcus aureus atcc 6538, salmonella choleraesuis atcc 10708, and pseudomonas aeruginosa atcc 15442. the culture broths that were used to inoculate the penicylinders were incubated for 48 h at 37 d ...19873305474
virulence-associated plasmids of salmonella serotype typhimurium in experimental murine infection.the growth pattern of salmonella enterica subsp. enterica serotype typhimurium (typhimurium) was studied in mice to examine the role of the 60-mdal virulence-associated plasmid in the pathogenesis of mouse typhoid. after repeated subcultures at 45 degrees c, isogenic variants harbouring the virulence-associated plasmid (strains c52, tm122 and tm332) or having lost this large plasmid (strains c53, tm123 and tm333) were obtained from three parental strains (strains c5, tm12 and tm33, respectively) ...19863324943
extraintestinal salmonellosis.between 1969 and 1984, 6564 non-typhoid salmonella strains were isolated at the liverpool public health laboratory of which 194 (3.0%) were from extraintestinal sites. blood (34%) and urine (32%) isolates accounted for two-thirds of these, with the remainder being recovered from pus and inflammatory tissue (23%), bone (5%), cerebrospinal fluid (5%) and sputum (3%). certain serotypes tended to cause more invasive disease than others, i.e. salmonella choleraesuis, s. dublin, s. london, s. virchow ...19883378582
[effect of components of curing mixtures on the antagonistic properties of enterococci and other bacteria isolated from cured meat].effect of sodium chloride, glucose, sodium glutamate, potassium nitrate, sodium nitrate, sodium nitraite, ascorbic acid, sodium citrate, polyphosphates (hamine) on antagonistic activity of enterococci and various bacteria isolated from cured meat against bacillus cereus, bacillus subtilis, salmonella typhi-murium, salmonella cholerae-suis, staphylococcus aureus, clostridium botulinum type a, clostridium botulinum type b, clostridium botulinum type e, clostridium bifermentans, clostridium perfrin ...19873506173
studies on the pathogenesis of salmonella typhimurium and salmonella choleraesuis var kunzendorf infection in weanling pigs.twenty-six 4-week-old pigs were randomly allotted to 4 groups: group 1--orally inoculated with salmonella typhimurium; group 2--orally dosed with s choleraesuis; and groups 3 and 4, with surgically constructed intestinal loops--loops inoculated with either s typhimurium or s choleraesuis. one pig each from groups 1 and 2 was killed at 8, 12, 24, 48, 72, 96, and 120 hours after inoculation. one pig each from groups 3 and 4 was killed at 2, 4, 6, 8, 12, and 24 hours after intestinal loop inoculati ...19863511804
[microcalorimetric study of salmonella].we investigated the heat production of 42 different salmonella strains belonging to the serogroups a, b, c, d and e. using columbia- and brain heart infusion broth as growth media, we found 3 different types of heat profiles. salmonella typhi and salmonella choleraesuis showed thermograms which differed in shape from the remaining serotypes. the thermograms of one salmonella dublin isolate which showed an atypical biochemical behaviour could not be put into proper relation to one of these 3 micr ...19863541456
[orchitis and epididymitis caused by salmonella cholerae suis in a premature infant].it is reported on a premature infant who fell ill with an orchitis and epididymitis by salmonella cholerae suis in the fourth week of life. the proof of the germs was carried out by means of two blood cultures as well as in the smear from the periorchium. the most important informations from literature concerning this subject are briefly reviewed.19873591031
conjunctival and intramuscular vaccination of pigs with a live avirulent strain of salmonella cholerae-suis.an avirulent mutant strain of salmonella cholerae-suis was cloned for resistance to streptomycin and nalidixic acid. the mutant strain 33-13 also was used because of its avirulence and immunogenicity in mice. weaned pigs were vaccinated with live strain 33-13; 5 pigs were vaccinated by conjunctivally administered 5.5 x 10(7) organisms (low dose), 5 were conjunctivally administered 5.5 x 10(9) organisms (high dose), and 5 pigs were administered 5.5 x 10(9) organisms (high dose) im. transient feve ...19873631689
[antibacterial activity of chlorquinaldol esters and 2-styryl-substituted derivatives].studied was the bacteriostatic activity of a total of 17 new esters and replaced 2-styryl derivatives of chlorquinaldol. determined were also the lowest concentrations that suppressed the growth of organisms. some of the compounds showed higher activity and broader spectrum of antibacterial qualities, mainly against escherichia coli, salmonella gallinarum, and salmonella cholerae suis as compared to the initial therapeutic preparation chlorquinaldol. it was found that the presence of chlorine at ...19873672924
salt-induced filamentous growth of a salmonella strain isolated from blood.a strain of salmonella choleraesuis subsp. choleraesuis serovar paratyphi-a isolated from the blood of a febrile patient grew into filaments on a nutrient agar containing various salts, such as nacl, kcl, mgcl2, nh4cl, (nh4)2so4, or (nh4)2hpo4, at concentrations of 50 to 400 mm. the filamentous cells were nonseptate and multinucleate, and they had colony-forming ability. this mutant strain, however, did not show filamentous growth in liquid media which contained the same salts. on nutrient agar ...19863700602
desferoxamine and iron dextran in acute salmonella cholerae-suis infection in pigs.serum iron (si)-related and hematologic changes were evaluated in a herd of weaned pigs inoculated with a strain of salmonella cholerae-suis, causing 83% mortality within 22 days after inoculation was done. serum iron concentrations decreased to 35% of base-line values 2 days after inoculation was done, but recovered to near base line subsequently. total si-binding capacity (tibc) decreased gradually for 14 days after inoculation was done. transferrin (tf) concentrations decreased to near half t ...19863740614
aztreonam therapy for serious gram-negative infections in children.fifty-nine children were enrolled in an open trial of aztreonam, a monocyclic beta-lactam, therapy for serious gram-negative infections. thirty-six infections were microbiologically evaluable and received five or more days of therapy. patients' ages ranged from 3 days to 12 years, and diagnoses included pyelonephritis or cystitis (20), deep soft tissue or joint infection (seven), septicemia (four), pneumonia (three), peritonitis, and epiglottitis. causative bacteria included escherichia coli and ...19863766490
some gale mutants of salmonella choleraesuis retain virulence.gale mutants were isolated from three mouse-virulent strains of salmonella choleraesuis (of group c1, o antigen 6,7) by selection for resistance to 2-deoxygalactose. the gale derivative of strain 381 comprised two components: galactose sensitive, thought to be the original mutant; and galactose resistant, presumably by a second mutation reducing galk or galt function or both. the galactose-sensitive component had an intraperitoneal 50% lethal dose for balb/c mice of ca. 4 x 10(6) cfu, whereas th ...19863781619
[salmonella choleraesuis bacteremia. apropos of a case]. 19863784664
antibiotic susceptibilities of swine salmonella isolants from 1979 to 1983.two hundred seventy-seven salmonella (27 serotypes) were isolated from kansas swine over a 5-year period (1979 to 1983). salmonella cholerae-suis was the predominant isolant from all tissues and made up 94.4% of the salmonella isolants from the lungs. the percentage of salmonella isolants susceptible to various antimicrobial agents was determined. the percentage of salmonella susceptible to carbadox decreased from 1980 to 1983.19863789494
salmonella bacteremia as manifestation of acquired immunodeficiency syndrome.multiple opportunistic infections are characteristic of the acquired immunodeficiency syndrome (aids). although bacterial pathogens have presented few problems, we have noted an emerging problem with salmonellal infection among patients with aids. a review of all stool and blood cultures from adults between january 1982 and july 1984 showed that 80 stool cultures were positive for salmonella species; serogroup b was the most common isolated. eight (10%) were isolated from patients with aids. nin ...19863942443
iron and transferrin in acute experimental salmonella cholerae-suis infection in pigs.the effects of experimental salmonella cholerae-suis inoculation with a virulent and an avirulent strain on serum iron (si), total iron-binding capacity (tibc), and transferrin (tf) were evaluated. inoculation of virulent strain 38 was followed by significant (p less than 0.05) decreases of si, tibc, and tf. exposure to avirulent strain 33 was followed by moderate decreases of si, tibc, and tf. when exposure to avirulent strain 33 was followed by challenge exposure with virulent strain 38, the s ...19853994112
[effect of levamisole on white mice and on the immunological reactivity of guinea pigs].investigations were carried out on the protective action of therapeutic doses of levamisole (pharmachim) on mice with a ld100 salmonella gallinarum infection. studied was also the effect of levamisole on the immunologic response of guinea pigs infected with salmonella cholerae suis. it was found that therapeutic amounts of 3 mg/kg levamisole applied to mice following respective patterns protected them against a lethal dose of s. gallinarum. the animals showed enhanced resistance to the infection ...19854035985
salmonella osteomyelitis. an important differential diagnosis of granulomatous osteomyelitis.a case of septicemia owing to salmonella choleraesuis with localization in the lumbar spine and left knee is described. the spinal lesion is dominated by tuberculoid granulomas with or without central necrosis. the necrotic foci within some granulomas show heavy polymorph infiltration, whereas in others they simulate caseous necrosis and are indistinguishable histologically from tuberculosis, brucellosis, and fungal infections. as salmonella osteomyelitis has a strong tendency to chronicity if a ...19854091185
[active immunization of pigs against salmonella cholerae suis with a commercially available vaccine (salmonella cholerae suis adsorbate vaccine dessau)]. 19734125130
transferable tetracycline resistance in salmonella cholerae-suis var. kunzendorf. 19744155891
[parathyphoid osteitis caused by salmonella cholerae suis kunzendorf]. 19714252767
carbenicillin indanyl sodium, an orally active derivative of carbenicillin.carbenicillin indanyl sodium, an orally active derivative of carbenicillin, is active against a broad spectrum of bacterial species. although the ester has in vitro antimicrobial activity per se when evaluated in brain heart infusion broth, the in vivo antibacterial activity seen in mice and rats reflects primarily the efficient hydrolysis of the ester to carbenicillin. with an acute systemic infection in mice as a test system, orally administered carbenicillin indanyl sodium protected mice agai ...19724558137
the effect of virulence of converting the o antigen of salmonella cholerae-suis from 627 to 617 by phage. 19744595512
[spontaneous bacteriophage production by strains of salmonella cholerae suis var. kunzendorf]. 19734599306
ultrastructure of phagocytosis of salmonella cholerae-suis by pulmonary macrophages in vivo. 19724646199
further studies on experimental bacterial pneumonia: ultrastructural changes produced in the lungs by salmonella cholerae-suis. 19734689824
salmonella septicemia from platelet transfusions. study of an outbreak traced to a hematogenous carrier of salmonella cholerae-suis. 19734711769
[immunometaphylaxis and therapy in salmonella cholerae suis infection using salmonella serum dessau from porcine origin]. 19734725023
pathology of experimental pneumonia in pigs produced by salmonella cholerae-suis. 19734761662
shigella spp., salmonella choleraesuis and arizona in rappaport's medium. 19684880688
r factor transmission in vivo.experimental infections were induced in weanling pigs orally both with nalidixic acid (na)-sensitive and -resistant strains of salmonella choleraesuis var. kunzendorf, designated rc221 and rc221na, respectively. prior to the time of infection, cultures of normal bacterial flora were isolated from swine fecal matter and screened for the presence of r factors. a majority of these bacterial isolates harbored transferable resistances. both strains rc221 and rc221na have been shown to be competent re ...19694897113
porcine salmonellosis. 3. production of fibrinous colitis by intravenous injections of a mixture of viable cells of salmonella cholerae-suis and disintegrated cells of the same agent, or hemolytic escherichia coli. 19704919467
the growth of salmonella choleraesuis in various enrichment broths. 19704923555
[demonstrability of salmonella cholerae suis in waste water and river water]. 19704933682
immunogenicity of r factor-carrying salmonella.an increased frequency of rough cultures with associated reductions in mouse virulence was detected after r-factor transmission into strains of salmonella choleraesuis var. kunzendorf and s. typhimurium. all rough strains tested, with or without r factors, conferred protective immunity against challenge with homologous or heterologous species of salmonella, some of which contained r factors. although slight protection was afforded against challenge with staphylococcus aureus, the immunity was sp ...19714949492
[case of salmonella cholerae-suis with various clinical manifestations]. 19694977193
[a live vaccine against swine paratyphus from an attenuated strain of salmonella cholerae suis ts-177]. 19694983831
nifuratrone, a new nitrofuran for the control of salmonella choleraesuis in swine. 19725053162
[valvula ring-abscess due to salmonella cholerae suis]. 19715165313
the immunity produced by a rough salmonella dublin variant against salmonella typhimurium and salmonella choleraesuis infection guinea-pigs. 19665223434
evaluation of culture media for the isolation of salmonellae from feces.a study conducted on 300 fecal samples from a cow and a pig, each artificially contaminated with approximately four salmonella organisms revealed that, of the three enrichment broths used in conjunction with the three selective media, the maximum number of isolations were obtained with brilliant green macconkey broth (bgmb), followed by those obtained with tetrathionate (ttb), and the least with selenite broth. the combination of bgmb with brilliant green-neutral red-lactose agar (bgnrla), and t ...19695392463
a serologic test for determining susceptibility of swine to salmonella choleraesuis infection. 19695392983
[studies on the multiplication capacity of variants of salmonella cholerae suis and salmonella dublin under different conditions of virulence]. 19695396348
[oxygen consumption and dehydrogenase activity of variants of salmonella cholerae suis and salmonella dublin under different conditions of virulence]. 19695396349
Displaying items 101 - 200 of 11731