Publications

TitleAbstractYear(sorted ascending)
Filter
PMID
Filter
treatment of enteric fever with pefloxacin for 7 days versus 5 days: a randomized clinical trial.in this prospective study of enteric fever, 22 patients received 400 mg of pefloxacin twice daily for 5 days (group a) and 24 received 400 mg of pefloxacin twice daily for 7 days (group b). causative microorganisms were salmonella typhi (8 in group a, 11 in group b) and salmonella paratyphi b (14 in group a, 13 in group b). the clinical cure and bacterial eradication rates were 96% (21 of 22) in group a and 100% in group b. in conclusion, 5-day oral administration of pefloxacin was as effective ...19969124864
antimicrobial activity of some medicinal plants extracts on escherichia coli, salmonella paratyphi and shigella dysenteriae.the antimicrobial activity of three plants extracts--momordica charantia, alstonia boonei, and ocimum bacilicum on pure and viable cultures of escherichia coli, salmonella paratyphi and shigella dysenterae was examined. cold maceration method of extraction using 95% ethanol was used for the extraction of the active constituents of the leaves. filter paper disks which were 6 mm in diameter were used for sensitivity testing. results showed that the extracts from the leaves of the three plants have ...19969532310
synthesis, characterization, and immunological properties in mice of conjugates composed of detoxified lipopolysaccharide of salmonella paratyphi a bound to tetanus toxoid with emphasis on the role of o acetyls.salmonella paratyphi a, the second most common cause of enteric fever in southeast asia, is a habitant of and a pathogen for humans only. lipopolysaccharides (lps) are both essential virulence factors and protective antigens for systemic infections caused by groups a, b, c, and d nontyphoidal salmonellae. the o-specific polysaccharide of s. paratyphi a is composed of a trisaccharide, -->2-alpha-d)-manp-(1-->4)-alpha-l-rhap-(1-->3)-alpha-d-galp -(1-->, with a branch of d-paratose from the c-3 of ...19968698499
outbreak of food poisoning due to salmonella paratyphi a var durazzo (2,12:a:-) in yavatmal (maharashtra) in may 1995.thirty three patients presented with acute diarrhoea and vomiting, 12-24 h after consuming vegetarian food. twenty three patients developed high grade fever, with two patients developing complications. salmonella paratyphi a var durazzo was isolated from 12 faecal samples. this serovar of salmonella as a causative organism of food poisoning is unusual.19968714142
a relapse of paratyphoid fever after treatment with ciprofloxacin in a child with congenital biliary atresia.this report describes a relapse of salmonella paratyphi b infection in a child with biliary atresia, following 2 weeks of treatment with ciprofloxacin. the recrudescence was complicated by the development of osteomyelitis and was treated with chloramphenicol, trimethoprim, ceftriaxone and ampicillin in succession.19979183498
hepatitis e virus and salmonella paratyphi a coinfection.we report a patient with simultaneous salmonella paratyphi a and hepatitis e virus infection. the possibility of coinfection with water borne diseases in india is emphasized.19979248192
[hygienic aspects of water quality from the danube river in novi sad].in order to assess the water quality of the danube river during the bathing season (june, 15. -september, 15.) from 1992-1995, water was examined every day (bacteriologically and chemically) while "big chemistry", hybrid analysis and determination of physiologic groups were performed every other week at the locality of the most beautiful beach called strand in novi sad. analyses showed that water did not meet criteria of the ii class quality in regard to microbiologic requirements in 63.44% of s ...19979297048
splenic abscess--case report and review of literature.isolated splenic abscess is a rarity and remains a diagnostic dilemma. the presentation is nonspecific and diagnosis is often delayed. we present a case which had roentgenographic signs suggestive of splenic suppuration at admission. of particular interest was the isolation of salmonella paratyphi in this patient. antibiotic therapy alone is insufficient and splenectomy remains the treatment of choice. the literature on splenic abscess is briefly reviewed.19979385863
comparison of viab regions of vi-positive organisms.we cloned the vipr genes from salmonella paratyphi c, s. dublin, and citrobacter freundii strains and compared them with the s. typhi sequence to clarify the genetic relationship of the viab regions of vi-positive organisms. viab regions were divided into two groups based on their sequences, the salmonella and c. freundii groups. the vipr coding sequences of the salmonella group were identical. southern blot hybridization results using the full-length viab region as a probe support these finding ...19979418239
pleural empyema due to salmonella paratyphi in a patient with aids.pleural empyema due to salmonella has rarely been reported in immunocompromised patients. here, we present a case of a 25-year old man infected with the human immunodeficiency virus type-1 (hiv-1) who presented with a left-sided pleural effusion. the cause was confirmed bacteriologically to be due to salmonella paratyphi. the outcome was favourable after antibiotic therapy coupled with pleural drainage. it should be recognised that pleural empyema due to salmonella may occur in hiv-infected subj ...19979438469
comparison of two regimens for ciprofloxacin treatment of enteric infections.a clinical trial was conducted in 50 patients with blood cultures positive for salmonella typhi or salmonella paratyphi to compare treatment with ciprofloxacin for seven days, 500 mg b.i.d. (group 1, 25 patients), with treatment for ten days, 750 mg b.i.d. (group 2, 25 patients). clinical cure was defined as defervescence of fever by day 5 of treatment, with an absence of complications and no clinical relapse. the clinical cure rate was 84% for group 1 and 96% for group 2; the difference in thes ...19979447901
quinolone-resistant salmonella paratyphi b meningitis in a newborn: a case report.while there are concerns about the consequences of widespread use of quinolones, there are few reports of quinolone-resistant strains of salmonella typhi or salmonella paratyphi from the indian subcontinent. we present a case report of a newborn with meningitis due to a quinolone-resistant strain of s. paratyphi b presenting to the aga khan university hospital (akuh).19979459410
molecular analysis of ampicillin-resistant sporadic salmonella typhi and salmonella paratyphi b clinical isolates.objective: to study the mechanisms of antibiotic resistance in salmonella typhi and salmonella paratyphi b clinical isolates, and the clonality of resistant strains. methods: antibiotic susceptibility was tested by disk-agar diffusion. conjugation experiments and plasmid analysis by agarose gel electrophoresis after ecori digestion were followed by hybridization to a digoxigenin-labeled tem-type beta-lactamase probe. dna fingerprints were obtained by pulsed-field gel electrophoresis of xbal-dige ...199711864127
treatment of extravasation from parenteral nutrition solution.to report two cases of parenteral nutrition extravasation and their treatment in adult patients.19989475821
[a case of imported paratyphoid fever associated with giardia lamblia and isospora belli infection].we report a case of imported paratyphoid fever associated with giardia lamblia and isospora belli infection. the patient was a 23-year-old japanese female with complaints of high grade fever and diarrhea after 10 days traveling to nepal. salmonella paratyphi a was isolated from the blood and fecal cultures on admission and ciprofloxacin of 200 mg tid was administered for 14 days. fecal examination revealed cysts of g. lamblia at the same time and metronidazole of 250 mg tid for 7 days was effect ...19989916420
bacterial isolates from neutropenic febrile pediatric patients and their sensitivity patterns to antibiotics.patients on cytotoxic therapy often develop neutropenia and fever. our interest was to identify the common pathogens isolated from such patients and to study the sensitivity patterns of these organisms to the antibiotics used in their treatment. thus, guidelines can be established by hospitals to identify which antibiotics can be used in the treatment of these patients when the results of cultures and sensitivities are not available. we conducted a retrospective study of neutropenic pediatrics p ...199810028802
quantitation of bacteria in blood of typhoid fever patients and relationship between counts and clinical features, transmissibility, and antibiotic resistance.salmonella typhi was isolated from 369 and salmonella paratyphi a was isolated from 6 of 515 vietnamese patients with suspected enteric fever. compared with conventional broth culture of blood, direct plating of the buffy coat had a diagnostic sensitivity of 99.5% (95% confidence interval [ci], 97.1 to 100%). blood bacterial counts were estimated by the pour plate method. the median s. typhi count in blood was 1 cfu/ml (range, <0.3 to 387 cfu/ml), of which a mean of 63% (95% ci, 58 to 67%) were ...19989620400
the microbiology "unknown" misadventure.a 19-year-old nursing student was hospitalized after several days of nausea, vomiting, diarrhea, and fevers. salmonella paratyphi a was isolated from multiple blood cultures. because this is an unlikely isolate in the united states, an investigation ensued. two and a half weeks earlier, the student had been working on a microbiology laboratory exercise "unknown." both the "unknown" organism and the patient's blood culture isolates were identified as s. paratyphi a, with the same biochemical reac ...19989638293
double infection with giardia lamblia and salmonella paratyphi a associated with acute renal failure.while traveling in india, a previously healthy twenty-year-old man had febrile diarrhea. the patient was prescribed medical therapy, and all symptoms were resolved. fourteen days later, however, similar symptoms recurred. the patient was admitted to a local hospital, but was transferred to our department because of oliguria. salmonella paratyphi a was isolated from blood and stool specimens, and giardia lamblia was identified in his stool. the patient's condition was complicated by acute renal f ...19989652908
identification of a new site for ferrichrome transport by comparison of the fhua proteins of escherichia coli, salmonella paratyphi b, salmonella typhimurium, and pantoea agglomerans.the fhua genes of salmonella paratyphi b, salmonella typhimurium, and pantoea agglomerans were sequenced and compared with the known fhua sequence of escherichia coli. the highly similar fhua proteins displayed the largest difference in the predicted gating loop, which in e. coli controls the permeability of the fhua channel and serves as the principal binding site for the phages t1, t5, and phi80. all the fhua proteins contained the region in the gating loops required in e. coli for ferrichrome ...19989683481
molecular analysis of salmonella paratyphi a from an outbreak in new delhi, india. 19989716989
detection of igm antibody against region iv flagellin of salmonella paratyphi a.salmonella paratyphi a is a pathogenic bacterium that causes paratyphoid fever. the current laboratory diagnostic techniques are unsatisfactory. to improve diagnosis, a plasmid (psk-8e) encoding phase 1 flagellin gene nucleotide position 452-890 from s. paratyphi a has been constructed. the recombinant protein expressed from the plasmid has been used to develop an indirect elisa for igm antibody detection. sera from patients with hemoculture positive for s. paratyphi a, s. typhi, other gram-posi ...199810772578
rapid diagnosis of typhoid fever.a reverse passive haemagglutination test (rpha) was designed for the detection of salmonella typhi antigen and rapid diagnosis of typhoid fever. two per cent fresh sheep rbc's were coated with 32 micrograms/ml of immunoglobulin. the minimal detectable level of the antigen was 1250 micrograms/ml. cross reactions were observed with the samples of patients suffering from salmonella paratyphi a and pseudomonas infections. the rpha established was used for the detection of s. typhi antigen in culture ...199810773905
sanitation characteristics of some food processing industries.the present investigation was carried out to evaluate the sanitary conditions surrounding the food throughout the production stages in some food plants. observation of the sanitary measures of the studied plants revealed that only 3 out of the 7 plants (42.9%) have acceptable sanitation that complies with the sanitary requirements specified by who. personal hygiene and storage conditions were the most critical problems found in the studied plants. laboratory examination of nasal and throat swabs ...199817219928
antimicrobial effects of psidium guajava extract as one mechanism of its antidiarrhoeal action.a morphine-like spasmolytic action (not naloxone reversible; involving the inhibition of acetylcholine release) and also effects on the transmural transport of electrolytes (na(+) and k(+)) and water have been reported as possible modes of the antidiarrhoeal action of polar fractions of psidium guajava leaf extractives. the objective for this study was to verify if the reported modes of the antidiarrhoeal action should be broadened to include direct antimicrobial actions on some of the more comm ...199922589684
antimicrobial activity of wedelia trilobata crude extracts.a biological screening of activity against gram-positive and gram-negative bacteria, yeasts, and fungi of crude extracts from wedelia trilobata is reported. the n-hexane extract showed antibacterial activity against bacillus subtilis, mycobacterium smegmatis, staphylococcus aureus, and staphylococcus epidermidis (gram-positive bacteria); along with proteus vulgaris, pseudomonas aeruginosa, salmonella group c, salmonella paratyphi, and shigella sonnei (gram-negative bacteria). the ethyl acetate e ...199910374253
value of a single-tube widal test in diagnosis of typhoid fever in vietnam.the diagnostic value of an acute-phase single-tube widal test for suspected typhoid fever was evaluated with 2,000 vietnamese patients admitted to an infectious disease referral hospital between 1993 and 1998. test patients had suspected typhoid fever and a blood culture positive for salmonella typhi (n= 1,400) or salmonella paratyphi a (n = 45). control patients had a febrile illness for which another cause was confirmed (malaria [n = 103], dengue [n = 76], or bacteremia due to another microorg ...199910449469
treatment of typhoid fever with azithromycin versus chloramphenicol in a randomized multicentre trial in india.to compare the clinical and bacteriological efficacies of azithromycin and chloramphenicol for treatment of typhoid fever, 77 bacteriologically evaluable adults, with blood cultures positive for salmonella typhi or salmonella paratyphi a susceptible to their assigned drugs, were entered into a randomized open trial at four hospitals in india. forty-two patients were randomized to receive azithromycin 500 mg p.o. od for 7 days and 35 to receive chloramphenicol 2-3 g p.o. od in four divided doses ...199910473232
genomic subtractive hybridization and selective capture of transcribed sequences identify a novel salmonella typhimurium fimbrial operon and putative transcriptional regulator that are absent from the salmonella typhi genome.salmonella typhi, the etiologic agent of typhoid fever, is adapted to the human host and unable to infect nonprimate species. the genetic basis for host specificity in s. typhi is unknown. the avirulence of s. typhi in animal hosts may result from a lack of genes present in the broad-host-range pathogen salmonella typhimurium. genomic subtractive hybridization was successfully employed to isolate s. typhimurium genomic sequences which are absent from the s. typhi genome. these genomic subtracted ...199910496884
acalculous cholecystitis caused by salmonella paratyphi b infection in a child with acute pre-b-cell lymphoblastic leukemia.acute acalculous cholecystitis (ac) rarely occurs in children with acute leukemia. the principal treatment modality of ac is emergency surgery. medical treatment of ac is not a good therapeutic approach. the mortality rate of ac is approximately 100% for medical treatment and 10-15% for emergency surgery. a 9-year-old boy with acute pre-b-cell lymphoblastic leukemia and ac caused by salmonella paratyphi b infection is presented. he was successfully treated with cefepime, amikacin, and granulocyt ...199910505326
salmonella paratyphi b phage type taunton associated with travel to the mediterranean coast of turkey. 199910506798
representative salmonella serovars isolated from poultry and poultry environments in saudi arabia.the authors describe the source and prevalence of pathogenic salmonella serovars among poultry farms in saudi arabia. a total of 1,052 (4%) salmonella isolates were recovered from 25,759 samples of poultry (broilers, layers, broiler breeders and layer breeders) and poultry environments (box liner, litter, drag swab, droppings, mice and feed) were examined bacteriologically between 1988 and 1997 at the poultry disease laboratory at the national agriculture and water research center in riyadh. ele ...199910588014
salmonella paratyphi a is more genetically homogeneous than salmonella typhi, as indicated by pulsed-field gel electrophoresis.we analyzed 18 salmonella paratyphi a and 12 salmonella typhi isolates from domestic and imported cases in aichi, japan, using pulsed-field gel electrophoresis. paratyphoid fever cases have increased and outbreaks of salmonella paratyphi a occasionally occur in japan, but s. paratyphi a has not been extensively analyzed. our study suggests significant genetic homogeneity among salmonella paratyphi a belonging to different phage types, which is in contrast to the genetic heterogeneity of salmonel ...200010741005
proposal of salmonella paratyphi sp. nov., nom. rev. and request for an opinion to conserve the specific epithet paratyphi in the binary combination salmonella paratyphi as nomen epitheton conservandum.we propose salmonella paratyphi sp. nov., nom. rev., by raising salmonella choleraesuis subsp. choleraesuis serovar paratyphi a to species status and request an opinion to include the specific epithet paratyphi in the binary combination of salmonella paratyphi in the list of epitheta specifica conservanda.200010758909
incidence of salmonella in fish and seafood.field laboratories of the u.s. food and drug administration collected and tested 11,312 import and 768 domestic seafood samples over a 9-year period (1990 to 1998) for the presence of salmonella. the overall incidence of salmonella was 7.2% for import and 1.3% for domestic seafood. nearly 10% of import and 2.8% of domestic raw seafood were positive for salmonella. the overall incidence of salmonella in ready-to-eat seafood and shellfish eaten raw was 0.47% for domestic--one shucked oyster and on ...200010826714
role and behaviour of the hydrophobic conditions in bacterial adhesion to incurrent siphon in a bivalve mollusc.surface hydrophobicity is a widely distributed characteristic among human bacterial pathogens playing an important role in microbes retention by the incurrent siphon of a marine bivalve. feeding retention experiments with the bivalve mesodesma donacium was done with hydrophobic strains alone (staphylococcus aureus, salmonella paratyphi, vibrio cholerae) or with mixed cultures using a hydrophilic strain (aeromonas hydrophila). results showed that hydrophobic bacteria are retained in greater numbe ...200010997493
role of molecular typing in an outbreak of salmonella paratyphi a.during the post monsoon season of 1996 an outbreak of human salmonellosis caused by salmonella serovar-paratyphi a occurred in new delhi and had continued for over 2 months. a total of 36 clinically diagnosed enteric-fever cases were reported during this outbreak. the isolates were compared following their characterisation by biotyping, antibiogram-analysis, plasmid-profiling and is200 probing, to study the relatedness in order to delineate a common source. the study included representative stra ...200011084832
bioactivity studies of extracts from tridax procumbens.an updated review on the biological activity of tridax procumbens is presented. a detailed biological screening comprised of gram-positive and gram-negative bacteria, yeasts and fungi using crude extracts of this plant was undertaken. the n-hexane extract of the flowers showed activity against escherichia coli. the same extract of the whole aerial parts was active against mycobacterium smegmatis, escherichia coli, salmonella group c and salmonella paratyphi. the ethyl-acetate extract of the flow ...200011185735
salmonella types and antibiotic susceptibility: a six months survey.a total of 51 salmonella strains were isolated during the six month period of may 1998 till october 1998. of these, 41 (80.3%) were salmonella typhi, 5 (9.8%) salmonella pararyphi a,2 (3.9%) salmonella worthington and 1 (1.9%) salmonella senftenberg. the prevalent phage and biotype of salmonella typhi was e1 (75%) and type 1 (90.2%) respectively. the commonest pattern of multiple drug resistance in salmonella typhi was accot and 92.5% of these belonged to phage e1. out of the five salmonella par ...200012583416
antibacterial activity of black tea (camelia sinensis) extract against salmonella serotypes causing enteric fever.alcoholic extract of black tea (camelia sinensis) was assayed for its antibacterial activity against salmonella serotypes causing enteric fever viz., salmonella typhi and salmonella paratyphi a. while all strains of s. paratyphi a tested were found sensitive, only 42.19% of s. typhi strains were inhibited by this extract. further minimum inhibitory concentration (mic) and minimum bactericidal concentration (mbc) of black tea extract against s. paratyphi a was less compared with that against s. t ...200111883337
serological survey of salmonellosis in grey duiker (sylvicapra grimmia) in asejire, irewole local government area, osun state, nigeria.a serological survey of salmonellosis in grey duiker was carried out in asejire, irewole local government area (lga), osun state, between august and september, 1996. the sera of 50 animals were screened for antibodies to salmonella flagella (h) and/or somatic (o) antigens. ten "bushmeat" hawkers/processors were interviewed on their state of health. twenty-two (44%) and 3 (6%) had antibodies to the h and o antigens, respectively. nine (18%) had antibodies to both the h and o antigens. antibody ti ...200114510164
sepsis and multiple brain abscesses caused by salmonella paratyphi b in an infant: successful treatment with sulbactam-ampicillin and surgical drainage.abscess formation by salmonella species is an uncommon but significant manifestation of salmonellosis, because this type of infection has high morbidity and mortality rates and is a potential nosocomial hazard. in infants, history of consumption of contaminated water should be especially quired. we report a case who had sepsis and multiple brain abscesses due to salmonella paratyphi b and who responded to sulbactam-ampicillin (sam) therapy. sulbactam-ampicillin combination may be preferable due ...200111297167
fhua barrel-cork hybrids are active transporters and receptors.the crystal structure of escherichia coli fhua reveals a beta-barrel domain that is closed by a globular cork domain. it has been assumed that the proton motive force of the cytoplasmic membrane through the interaction of the tonb protein with the tonb box of the cork opens the fhua channel. yet, deletion of the cork results in an fhua derivative, fhuadelta5-160, that still displays tonb-dependent substrate transport and phage receptor activity. to investigate this unexpected finding further, we ...200111344156
[increasing number of salmonella paratyphi b isolates from slaughtered poultry sent in to the national salmonella reference laboratory].in the last years the number of isolations of salmonella enterica subspecies enterica serovar paratyphi b (s. paratyphi b) sent to the national salmonella reference laboratory of germany has increased steadily. most of the isolates originated from fowl or poultry products. the bacteriological, serological and biochemical properties of the isolates were investigated. special emphasis was given to the utilization of d-tartrate which subgroups the serovar. all of them belonged to the d-tartrate pos ...200111413710
outbreak of salmonella paratyphi b var java due to contaminated alfalfa sprouts in alberta, british columbia and saskatchewan. 200111523182
genomic analysis and growth-phase-dependent regulation of the sef14 fimbriae of salmonella enterica serovar enteritidis.salmonella enterica serovar enteritidis is a leading cause of food poisoning in the usa and europe. although salmonella serovars share many fimbrial operons, a few fimbriae are limited to specific samonella serovars. sef14 fimbriae are restricted to group d salmonella and the genes encoding this virulence factor were acquired relatively recently. genomic, genetic and gene expression studies have been integrated to investigate the ancestry, regulation and expression of the sef genes. genomic comp ...200111577150
post-coronary artery bypass surgery pericardial abscess: salmonella paratyphi b.endemic enteric fever is one of the major health problems in south asia where focal pyogenic infections with salmonella are being increasingly reported. a pericardial abscess following coronary artery bypass surgery with salmonella paratyphi b was successfully treated, the first reported case so far.200111597151
a case of salmonella paratyphi b septicaemia complicated by disseminated intravascular coagulation, severe hepatitis rhabdomyolysis and acute renal failure. 200111597152
self-assembled monolayers as the coating in a quartz piezoelectric crystal immunosensor to detect salmonella in aqueous solution.a new procedure based on the self-assembled monolayers (sam) of alkanethiols was developed to immobilize antibodies onto gold electrodes of a quartz crystal microbalance (qcm) for detecting salmonella paratyphi a. the procedure includes (1) chemisorption of 3-mercaptopropionic acid (mpa) at electrode surfaces to produce a carboxylic acid terminated monolayer, (2) activation by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (edc) and n-hydrosuccinimide (nhs) to generate a stable acyl amino ester ...200111721933
typhoid and paratyphoid fever: a 10-year retrospective study of 41 cases in a parisian hospital.enteric fever remains a major cause of fever in travelers. we evaluated new trends in enteric fever.200111726293
[notification according to the law for protection against infections].since january 1st 2001, the law for protection against infections decrees the duty of notification along two tracks, on the one hand by notification of infectious diseases and on the other hand by reporting the pathogens. however, the names of pathogens change due to scientific progress. furthermore, these names include in some cases not only harmful agents of infectious diseases but also inoffensive organisms, i. e. giardia lamblia. there are also problems in the notification of other pathogens ...200111735068
an unusual paratyphoid fever.salmonella typhi is known to produce acalculous cholecystitis and related gall bladder perforation. following is a documentation of a patient of sub-phrenic abscess and gall bladder perforation which was possibly a result of salmonella paratyphi a.200111762624
microbial killing activity of peracetic acid.in vitro killing activity of peracetic acid (perasafe) at a concentration of 0.26 per cent w/v was tested against escherichia coli, enterobacter cloacae, klebsiella pneumoniae, pseudomonas aeruginosa, salmonella typhi, salmonella paratyphi a, acinetobacter baumannii, sternotrophomonas maltophilia, enterococcus faecium, enterococcus faecalis, methicillin-resistant staphylococcus aureus (mrsa), bacillus subtilis spore, mycobacterium tuberculosis and human immuno-deficiency virus type i. exposure t ...200111804244
antimicrobial and phytochemical studies on 45 indian medicinal plants against multi-drug resistant human pathogens.ethanolic extracts of 45 indian medicinal plants traditionally used in medicine were studied for their antimicrobial activity against certain drug-resistant bacteria and a yeast candida albicans of clinical origin. of these, 40 plant extracts showed varied levels of antimicrobial activity against one or more test bacteria. anticandidal activity was detected in 24 plant extracts. overall, broad-spectrum antimicrobial activity was observed in 12 plants (l. inermis, eucalyptus sp., h. antidysentric ...200111167029
genetic diversity of salmonella enterica serovar paratyphi a from different geographical regions in asia.subtyping of salmonella paratyphi a isolates from india, pakistan, indonesia and malaysia was carried out by pulsed-field gel electrophoresis (pfge) to assess the extent of genetic diversity of these isolates from different endemic countries.200212010557
outbreak of salmonella paratyphi b linked to aquariums in the province of quebec, 2000. 200212060955
endocarditis and pericarditis caused by salmonella paratyphi a: two case reports and review of the literature.we report on two children with paratyphoid fever and rare cardiac complications (endocarditis and pericarditis) during an outbreak of salmonella paratyphi a infection in bangkok, thailand, in 1996. both of the patients had underlying congenital heart disease. two cases in the literatures of endocarditis and five cases of pericarditis caused by salmonella paratyphi were reviewed. these rare cardiac complications should be considered among persons who reside in an endemic area of enteric fever or ...200212118445
genetic structure of salmonella revealed by fragment analysis.recently, the genus salmonella has been studied by multilocus enzyme electrophoresis (mlee) and three collections of strains defined by this method, sara, sarb and sarc, have been assembled to represent the genetic diversity of salmonella choleraesuis (commonly known as salmonella enterica) subspecies i and of the genus as a whole. the novel technique fluorescent amplified-fragment length polymorphism (faflp) analysis was applied to these collections to determine the genetic diversity of salmone ...200212361277
safety and efficacy of cefepime versus ceftazidime in the treatment of severe infections.an open-label, randomized study was conducted to evaluate the safety and efficacy of cefepime versus ceftazidime in the treatment of severe bacterial infections, including septicemia, urinary tract infection, bacterial bronchitis, bacterial pneumonia, and intraabdominal infection. fifty-two patients with severe infections were eligible and prospectively randomized to receive cefepime (26 patients) or ceftazidime (26 patients) during a 15-month period. forty-two patients were evaluable (24 in the ...200212380788
anti-typhoid agglutinins in school aged african children.to determine baseline antibody responses to h and o antigens of salmonella typhi and salmonella paratyphi (a, b and c) in school aged nigerian children.200212380886
hepatic abscess complicating paratyphoid infection.salmonellosis is ubiquitous and is a world-wide public health concern. liver abscesses are occasionally reported in salmonella typhi infections, they are a very rare complication of salmonella paratyphi infections. a 28 year old male patient without any prior medical history presented with fever, abdominal pain and a tender hepatomegaly. the imaging studies revealed multiple liver abscesses and an ultrasound (us) guided aspiration of the abscess yielded heavy growth of salmonella paratyphi a. he ...200212833705
electrophoretic analysis of salmonella typhi and other bacteria.a comparative study involving sds-page of salmonella typhi and other bacteria was conducted. protoplasmic antigens of salmonella typhi. salmonella paratyphi a, salmonella typhimurium, proteus sp, klebsiellas sp. pseudomonas aeruginosa, shigella flexneri, staphylococcus aureus were separated and compared on sds-page followed by checking of their cross reactivity by gel diffusion using antisera raised against whole cell and lysates of salmonella typhi. lines of identity between salmonella typhi, s ...200212649947
antimicrobial activity of ayurvedic tablet "hadrabi".the ethanolic extract of "hadrabi" powder was tested for antimicrobial activites against gram positive organisms-staphylococus aureus, bacillus subtilis, clostridium perfringens and gram negative organisms-pseudomonas aeruginosa, salmonella paratyphi -b, escherichia coli & klebsiella pneumoniae significant antimicrobial activity of the extract was found in this study at the dose of 1250 mg.200222557061
mixed salmonella infection - a case report.mixed infection with multiple salmonella serotypes in the same patient is an unusual finding. we present a case of enteric fever in which the blood culture was sterile and widal test was negative. the culture of the bone marrow yielded salmonella typhi and salmonella paratyphi a.200217657047
pleural effusion in complicated salmonella paratyphi a infection.enteric fever can present with unusual manifestations. we observed a rare case of salmonella paratyphi a infection in which multiple organs were involved and the organism was isolated from pleural fluid and blood. in the present era of antimicrobial drug resistance, awareness about such atypical presentations is essential to initiate a prompt treatment.200312657761
[a case of infected liver cyst caused by salmonella paratyphi a]. 200312696177
re-emergence of salmonella paratyphi a: a shift in immunity? 200312715960
isolation of salmonella paratyphi a from a patient with nephrolithiases.we describe a case of salmonella paratyphi a isolated from urine of a 37-year-old saudi patient who is a known case of nephrolithiasis and hydronephrosis with frequent admission for management of renal stones. history of enteric fever was not documented and urinary schistosomiasis in such a patient from endemic area is a strong possibility. relevant literature was discussed.200312754545
seasonal variation in bacterial pathogens isolated from stool samples in karachi, pakistan.to determine the seasonal variation of the commonly isolated bacterial pathogens in stool samples.200312779031
lipschütz genital ulceration: a rare manifestation of paratyphoid fever.in 1913, a distinctive clinical entity of acute genital ulcer occurring in an adolescent girl with a non-venereal infectious aetiology was described by lipschütz. since the initial description, several aetiologies have been discussed, and among them, paratyphoid fever is very uncommon. after her return from a trip, a 25-year-old girl developed high fever and diarrhoea. examination of the vulva revealed a genital ulcer. the rest of the general examination was normal. blood cultures identified sal ...200312804994
antimicrobial resistance of bacterial pathogens associated with diarrheal patients in indonesia.the antimicrobial susceptibility patterns for 2,812 bacterial pathogens isolated from diarrheal patients admitted to hospitals in several provinces in the cities of jakarta, padang, medan, denpasar, pontianak, makassar, and batam, indonesia were analyzed from 1995 to 2001 to determine their changing trends in response to eight antibiotics: ampicillin, trimethoprim-sulfamethoxazole, chloramphenicol, tetracycline, cephalothin, ceftriaxone, norfloxacin, and ciprofloxacin. vibrio cholerae o1 (37.1%) ...200312887025
explosive increase of salmonella java in poultry in the netherlands: consequences for public health.in the netherlands salmonella paratyphi b variant java increased in poultry from less than 2% of all isolates before 1996 to 60% in 2002. despite exposure to contaminated meat is high, human patients with java infection are rare (0.3% of all isolates). however, 50% of the human isolates showed pfge profiles identical to the poultry clone. resistance to flumequin in s. java increased from 3% between 1996-2000 to 19% in 2001, and 39% in 2002, while that of other serotypes in poultry remained at ab ...200312631972
the pathogenicity of strains of salmonella paratyphi b and salmonella java.to relate the diseases caused by strains of salmonella paratyphi b and s. java to pathogenic mechanisms expressed by these bacteria for the purpose of organism discrimination.200312534827
venous thrombosis associated with salmonella: report of a case and review of literature.we describe here the first case of salmonella paratyphi a bacteremia associated with deep vein thrombosis in a 10-year-old patient. in spite of aggressive antibiotic therapy and supportive care, the patient died of progressive respiratory distress and septic shock. awareness of unusual clinical presentation of salmonella infection in important. a review of the previously reported cases of salmonella associated venous thrombosis worldwide is also presented.200314514251
occurrence of salmonella typhi and salmonella paratyphi in jordan.in order to justify the surveillance control system and hygiene policy in jordan, this study evaluated the occurrence of diarrhoea during the period 1988-2000, focusing on cases caused by salmonella typhi and salmonella paratyphi. from january 1988 to december 2000, the number of notified diarrhoeal cases by the ministry of health in jordan was 1,399,563 million. other groups of patients confined to the governorate of amman was diagnosed at al-battikhi medical laboratories. one-way anova and lea ...200314596347
antimicrobial activity of extracts of local cough mixtures on upper respiratory tract bacterial pathogens.the punched-hole and the paper disc diffusion methods were used in screening for the antimicrobial activity of six common ingredients used locally in cough mixtures, against the following bacteria: klebsiella pneumoniae, pseudomonas aeruginosa, staphylococcus aureus. enterococcus faecalis, escherichia coli, salmonella spp, salmonella paratyphi, shigella dysenteria, shigella sonnei and candida albicans. the results, evaluated as the diameter of zone of inhibition of microbial growth, showed that ...200314649097
incidence of quinolone resistance in strains of salmonella isolated from poultry, cattle and pigs in germany between 1998 and 2001.this paper reports the susceptibility to the quinolone nalidixic acid and the fluoroquinolone ciprofloxacin of 14,514 strains of salmonella isolated in germany from poultry, cattle and pigs between 1998 and 2001. quinolone-resistant salmonellae were most frequently isolated from poultry, with a prevalence of 10.2 to 16.8 per cent. poultry-associated serotypes, such as salmonella paratyphi b (d-tartrate positive), salmonella hadar and salmonella virchow, had the highest prevalence of quinolone re ...200314667084
unusual presentation of enteric fever: three cases of splenic and liver abscesses due to salmonella typhi and salmonella paratyphi a.enteric fever is a multisystem disorder caused mainly by salmonella typhi and salmonella paratyphi a. it continues to be a major public health problem, especially in developing countries. unusual presentations of salmonellosis are rare. we report 3 such cases of young adult males, one of splenic abscess due to salmonella typhi and one each of liver abscess due to salmonella typhi and salmonella paratyphi a. a brief review of the literature pertaining to the cases is also given.200315164532
acute hepatitis with salmonella paratyphi a and hepatitis e virus coinfection. 200314506397
risk factors for typhoid and paratyphoid fever in jakarta, indonesia.the proportion of paratyphoid fever cases to typhoid fever cases may change due to urbanization and increased dependency on food purchased from street vendors. for containment of paratyphoid a different strategy may be needed than for typhoid, because risk factors for disease may not coincide and current typhoid vaccines do not protect against paratyphoid fever.200415173152
surface plasmon resonance immunosensor using self-assembled protein g for the detection of salmonella paratyphi.a surface plasmon resonance (spr) based immunosensor using self-assembled protein g was developed for the detection of salmonella paratyphi. in order to endow a solid substrate binding affinity to protein g, the free amine (-nh2) of protein g was substituted into thiol (-sh) using 2-iminothiolane. thus, self-assembled protein g was fabricated on gold (au) substrate. the formation of protein g layer on au surface, and the binding of antibody and antigen in series were confirmed by spr spectroscop ...200415196764
growth inhibition of enteric pathogens by zinc sulfate: an in vitro study.to determine the inhibition effect of zinc sulfate on isolates of enteric bacteria.200415316263
emergence of multidrug-resistant salmonella paratyphi b dt+, canada.we document an increase in the number of multidrug-resistant salmonella enterica serovar paratyphi b dt+ identified in canada. most of these strains harbor salmonella genomic island 1 (sgi1). further studies are needed to determine factors contributing to the observed emergence of this multidrug-resistant strain.200415324556
dynamics of mast cells in lymph node following antigenic stimulation.dynamics of mast cells in rat cervical lymph nodes were examined using conventional histological techniques after injection of salmonella paratyphi b-h antigen. there was no significant change in the number of mast cells at sixth hour and on the first day of stimulation compared with the controls. the number of mast cells was increased in all lymph node compartments on the second day of stimulation, which continued in the following 3 days. on the eighth day of stimulation, although the mast cell ...200415027955
bacteria-host interactions of salmonella paratyphi b dt+ in poultry.in recent years, a dramatic increase in incidence of the dextro-rotatory tartrate-positive variant (dt+) of salmonella enterica subspecies enterica serovar paratyphi b has been observed in poultry and poultry products. in the present study the interactions of this bacterium with the host were studied in vivo and in vitro in an attempt to explain the preferential association of this serotype with poultry. the ability of this organism to invade and multiply in chicken intestinal epithelial cells a ...200415061498
antityphoid agglutinins in african school aged children with malaria.salmonella antibodies are known to cross-react with other antigens including those from escherichia coli. malaria antigens may also have similar characteristics.200415730083
bone marrow granulomas in salmonella paratyphi a infection. 200415491283
protracted fever after a journey to india and nepal: a case of persistent salmonella paratyphi infection. 200415541231
foodborne disease investigation across australia: annual report of the ozfoodnet network, 2003.in 2003, ozfoodnet conducted enhanced surveillance of foodborne diseases across australia, which covered all states and territories. during 2003, there were 23,250 notifications of eight potentially foodborne diseases, of which 67 per cent and 30 per cent were due to campylobacter and salmonella infections respectively. the most common salmonella serotype was typhimurium, as in previous years. most s. enteritidis were acquired overseas, except for queensland where 52 per cent of infections were ...200415574061
salmonella paratyphi a enteric fever mimicking viral meningitis.enteric fevers are caused by invasive strains of salmonella. classic enteric fever is caused by s. typhi and usually less severe enteric fevers are caused by s. paratyphi a, b, or c. we present a case of s. paratyphi a enteric fever aseptic meningitis. headache was so prominent in the case presented that a lumbar puncture was performed to rule out meningitis. rose spots were not apparent in this dark-skinned patient. our patient did not have increased serum transaminases and did not have leukope ...200415597296
microorganisms and parasites in chronic infective diarrhea.to reveal the pattern of microorganisms in chronic infective diarrhea cases.200415931720
[typhoid and paratyphoid fever in children].febrile illness without focal symptoms in a child who has visited tropical or sub-tropical areas is an increasing health problem in western countries. in the department of paediatrics at ullevaal university hospital, malaria, typhoid and paratyphoid fever are the most frequent infectious diseases acquired in tropical or sub-tropical areas.200515976828
epidemiology of typhoid and paratyphoid fever in kathmandu: two years study and trends of antimicrobial resistance.enteric fever is prevalent in developing countries including nepal, where it still remains as a major health problem. appropriate antibiotics are essential for the treatment of typhoid and paratyphoid fever. a prospective study was carried out to characterize the epidemiological features of enteric fever in kathmandu, nepal and to analyse the recent trend of antimicrobial resistance pattern of the salmonella isolated from the cases of enteric fever from different hospitals in kathmandu during ju ...200516082406
enteric fever-like illness caused by infection with citrobacter amalonaticus.'enteric fever' is a potentially fatal, severe systemic disease, which is encountered worldwide. traditionally, enteric fever refers to a bacteremic illness caused by members of certain salmonella serotypes, notably: salmonella typhi, a gram-negative bacterium, and to a lesser extent, salmonella paratyphi a, b and c. in addition, other non-salmonella organisms may produce a syndrome clinically indistinguishable from "enteric fever". brucella sp., campylobacter sp., edwardsiella tarda, enterobact ...200516083226
reversible encephalopathy secondary to paratyphoid infection and concomitant acute hepatitis a.reversible encephalopathy has been described in association with typhoid fever as well as nontyphoidal salmonella infections. a diagnostic dilemma as to the cause of encephalopathy may arise when there is coexistent acute viral hepatitis and suspicion of fulminant liver failure. the authors report a patient who presented with acute icteric hepatitis a infection and a concomitant febrile illness due to salmonella paratyphi associated with progressive encephalopathy and coma. the young man develop ...200516108242
bacteria isolated from blood, stool and urine of typhoid patients in a developing country.blood, stool and urine samples were collected from 100 patients diagnosed as having typhoid in 5 hospitals in akwa ibom state and analyzed for the presence of salmonella species and other bacteria. of the 100 blood samples screened, 55 (55%) were positive with the widal test and 39 (39%) were positive on blood culture. thirteen (14.1%) out of 92 urine samples were positive for bacterial growth, while 22 (26.8%) of the stool cultures were positive out of the 82 samples screened. those within the ...200516124436
the artab genes encode a putative adp-ribosyltransferase toxin homologue associated with salmonella enterica serovar typhimurium dt104.many bacterial pathogens encode adp-ribosyltransferase toxins. the authors identified an adp-ribosyltransferase toxin homologue (arta, artb) in salmonella enterica serovar typhimurium (s. typhimurium) dt104. arta is most homologous to a putative pertussis-like toxin subunit present in salmonella typhi (sty1890) and salmonella paratyphi a (spa1609), while artb shows homology to a hypothetical periplasmic protein of s. typhi (sty1364) and s. paratyphi a (spa1188), and a putative pertussis-like tox ...200516151219
current perspectives of enteric fever: a hospital-based study from india.the last two decades have seen a change in the pattern of enteric fever with the emergence of multidrug-resistant strains (mdrs), particularly strains resistant to nalidixic acid.200516156980
enteric fever in israeli travelers: a nationwide study.enteric fever (ef) has become a travel-related disease in industrialized countries. the possible effects of vaccination on typhoid epidemiology in travelers are unknown. we compared the incidence and clinical and microbiologic findings in travelers returning with ef, according to pretravel vaccination status and vaccine type.200516256052
salmonella paratyphi a rates, asia.little is known about the causes of enteric fever in asia. most cases are believed to be caused by salmonella enterica serovar typhi and the remainder by s. paratyphi a. we compared their incidences by using standardized methods from population-based studies in china, indonesia, india, and pakistan.200516318734
Displaying items 601 - 700 of 997