Publications

TitleAbstractYear
Filter
PMID(sorted ascending)
Filter
characteristics of non-cholera vibrios isolated from cases of human diarrhoea.eighty-two organisms tentatively identified as non-cholera vibrios were isolated from cases of diarrhoea occurring in east pakistan. in 19 well-studied cases they were the predominant organism recovered, and a rise in agglutinating-antibody titre was found in six of these cases.because of this additional evidence that non-cholera vibrios cause diarrhoeal disease, it was necessary to evaluate simple screening tests as a means of recognizing them. it was found that all organisms that produced a ge ...19655294177
protective antigens from el tor vibrios. 1. the preparation and properties of a purified protective antigen from an el tor vibrio (ogawa subtype).a biochemically and immunologically homogeneous antigenic fraction having the properties of a lipopolysaccharide has been isolated from the culture supernatant of an el tor vibrio (ogawa subtype). this antigen was very specifically protective for mice challenged with ogawa strains of either el tor vibrios or vibrio cholerae. rabbit antisera prepared against the antigen were passively protective for mice and highly vibriocidal but had little agglutinating activity. however, the antigen was able s ...19655294306
the root of flagella of vibrio cholerae. 19655294325
clinical and physiological observations during an epidemic outbreak of non-vibrio cholera-like disease in calcutta.during march through june 1964, an epidemic of acute non-vibrio diarrhoeal disease, closely simulating cholera, occurred in calcutta. to clarify the etiology and pathophysiology and improve the therapy of this illness, bacteriological and metabolic studies were performed on 145 consecutive hypotensive adult male patients admitted with acute diarrhoeal disease to the calcutta infectious disease hospital. bacteriological and serological studies clearly demonstrated that the majority of patients wi ...19655295147
notes on food, beverages and fomites contaminated with vibrio cholerae. 19655295150
detection of vibrio cholerae biotype el tor by purging.previous studies have demonstrated the value of purging in detecting inapparent cholera infection, but the technique has not been generally accepted. the present study shows that the method can be recommended as a routine procedure to determine when convalescent cholera patients should be discharged from hospital. it may also be useful in detecting carriers of vibrio cholerae and for evaluating chemotherapy. in this study, five of the eight patients who excreted vibrios after purging had been tr ...19665296396
interaction of vibrio cholerae and vibrio el tor.soon after its entry into the indo-pakistan subcontinent in 1964, cholera el tor progressively replaced classical cholera. one of the probable reasons for this was found from laboratory studies of the interaction of the two choleragenic vibrios, v. cholerae and v. el tor. it was observed, in both in vitro and in vivo experiments, that in mixed culture el tor vibrios from cholera cases are capable of outgrowing and rapidly eliminating v. cholerae. the apathogenic el tor strains from the middle ea ...19665296397
phage resistance in vibrio cholerae.mukerjee cholera phages are being extensively used in the classification of vibrios. however, the studies reported here show that phage-resistant mutants that are exactly like the parent strains in all characteristics except phage reactions can easily be obtained. for this reason phage reactions should be considered only as a marker and not as the final arbiter in vibrio classification, e.g., in attempting to identify the el tor vibrio. confirmatory evidence should always be sought.it is also sh ...19665297802
the hexamine test: a new method for the differentiation of vibrio cholerae and v. eltor. 19675299756
a controlled field trial of the effectiveness of cholera and cholera el tor vaccines in the philippines.a controlled field trial on some 584 000 people in an endemic cholera el tor area in the philippines demonstrated that cholera vaccines gave moderate protection of short duration. injection of a single dose of vaccine prepared from either vibrio cholerae or el tor vibrios gave over 50% protection for the first 2 months. the immunity conferred by the v. cholerae vaccine declined rapidly after 3 to 4 months. the effectiveness of the el tor vaccine continued for 6 months. an oil-adjuvant vaccine pr ...19675300874
preparation and laboratory tests of oil-adjuvant cholera vaccine.in a search for cholera vaccines of improved efficacy, agar-grown strains of classical vibrio cholerae were killed with formol and emulsified with arlacel a in mineral oil; the final vibrio concentration was adjusted to 2 x 10(9) vibrios per adult dose (equal proportions of inaba and ogawa types).there was an unexplained discrepancy between determinations of the vibrio content, by cell counting and opacity measurements, and of the antigen content, by nitrogen measurements and the complement-fixa ...19675300875
antibiotic therapy of cholera in children.in a controlled trial of the effects of oral antibiotics in treating cholera in children in dacca, east pakistan, tetracycline was the most effective of 4 antibiotics tested in reducing stool volume, intravenous fluid requirement, and the duration of diarrhoea and positive stool culture. increasing the duration of tetracycline therapy from 2 to 4 days, or increasing the total dose administered, resulted in shorter duration of positive culture, but did not affect stool volume or duration of diarr ...19675301733
survival of vibrio cholerae biotype el tor in well water. 19675301744
serological studies in cholera. i. vibrio agglutinin response of cholera patients determined by a microtechnique.an agglutinin test for the determination of antibody responses to vibrio cholerae, requiring only 0.025 ml of serum, has been developed. this microtechnique permits the determination of agglutinin titres using fingertip blood, with results comparable with those obtained using venous blood taken at the same time.among 364 serum pairs in bacteriologically confirmed cases of cholera from an endemic area of east pakistan, the second serum sample being obtained 6 days or more after the onset of sympt ...19685302302
serological studies in cholera. 2. the vibriocidal antibody response of cholera patients determined by a microtechnique.a microtechnique is described for the determination of vibriocidal antibodies to vibrio cholerae, using 0.025 ml of fingertip blood or venous serum per test. this test could be used in epidemiological surveys, or as a routine test on patients admitted to hospital.fourfold or greater rises in vibriocidal titre were noted for 96.5% of 370 bacteriologically confirmed cholera patients in an endemic area of east pakistan (91.5% for the 94 children under 5 years in the study group). it is necessary to ...19685302303
serological studies in cholera. 3. serum toxin neutralization--rise in titre in response to infection with vibrio cholerae, and the level in the "normal" population of east pakistan.a method has been evaluated for the titration of antibodies to vibrio cholerae, based on the ability of sera containing such antibodies to neutralize the inflammatory effect of a factor from v. cholerae cultures on the skin of test animals.ninefold or greater rises in toxin-neutralization titre were found in 73% of 111 bacteriologically confirmed cholera patients in an endemic area of east pakistan, and in 2.5% of bacteriologically negative patients. this method compares well with the microtechn ...19685302304
cholera vaccine field trials in east pakistan. 2. effectiveness in the field.a cholera-vaccine field trial in a rural area of east pakistan where cholera is highly endemic has indicated that a high-potency whole-cell vaccine can provide significant protection against disease due to vibrio cholerae for at least 18 months. this vaccine gave more than 70% protection during the first cholera season after vaccination. in the second cholera season after the administration of a single dose of vaccine, protection fell in those under 5 years of age, while continuing at significan ...19685302329
the relationship of vibriocidal antibody titre to susceptibility to cholera in family contacts of cholera patients.a bacteriological and serological study of family contacts of 81 cholera patients was carried out in dacca, east pakistan. in the 10-day follow-up, 78 (16.7%) of 466 contacts were found to be infected with vibrio cholerae; half of them were symptomatic and 29 had to be admitted to hospital. a study of serum pairs revealed a 4-fold, or greater, rise in titre in 86% of those infected in whom diarrhoea was present, and in 77% of individuals with inapparent infections. the infection rate fell marked ...19685303331
patterns of in vitro sensitivity in calcutta strains of vibrio cholerae. 19685306110
r-factors in calcutta strains of vibrio cholerae and members of the enterobacteriaceae. 19685306111
report of the 1966-67 cholera vaccine field trial in rural east pakistan. 2. results of the serological surveys in the study population--the relationship of case rate to antibody titre and an estimate of the inapparent infection rate with vibrio cholerae.the 1966-67 cholera vaccine field trials in east pakistan tested 1- and 2-dose schedules of a commercial cholera vaccine in 40 000 children aged 3 months to 14 years. randomsample serological surveys, made prior to the inoculations and 3 months and 6 months after the inoculations, demonstrated that there was a rise in the vibriocidal titres of the vaccinated children during the first 3 months after inoculation and a subsequent fall by the end of the second 3 months. the antibody response to 2 do ...19695306539
study on vibrio cholerae infection in a small community in calcutta. joint icmr-gwb-who cholera study group, calcutta, india.the presence of a high level of latent infection in an affected community was postulated as one of the conclusions of earlier studies undertaken during cholera epidemics. a small community, consisting of 59 persons, was investigated for 100 days to determine the prevalence and persistence of infection after the occurrence of 2 index cases of cholera. in the community 39 excretors (66.1%) were detected, the 2 index cases and 37 carriers. excretion of vibrio cholerae was detected as much as 100 da ...19705312994
study on the transmission of e1 tor cholera during an outbreak in can-itom community in the philippines.during surveillance for cholera in the community of can-itom (negros occidental, philippines) in which the disease is endemic, a limited outbreak of cholera occurred. although it was not possible to determine how the infection arose, the index case was detected and the spread of infection traced. the infection was found to be transmitted initially from person to person until the water of a dug well became contaminated, as a result of which a water-borne outbreak of a rather explosive nature occu ...19705312996
isolation of vibrio cholerae from nightsoil during epidemics of classical and e1 tor cholera in east pakistan.a clear difference has been observed between the classical inaba v. cholerae and the el tor ogawa v. cholerae in relation to the ability to isolate the organism from the environment.an early attempt to utilize nightsoil sampling as a tool to measure the extent of infection in the community during an epidemic of classical inaba cholera in dacca, east pakistan, in the spring and fall of 1968 proved unsuccessful. during an epidemic caused by both the classical inaba and the el tor ogawa vibrios in ...19705312997
a specific phage for pathogenic vibrio cholerae, biotype e1 tor (phi-h74-64). 19705313002
vibrio agar: a new plating medium for isolation of vibrio cholerae. 19715314746
somatic antigen variation in vibrio cholerae. 19715314749
a comparison of jejunal response to cholera exotoxin and to hypertonic mannitol. 19715317651
vibriocine production in the cholera and el tor vibrios.various tests have been developed to differentiate vibrio cholerae and v. el tor, since the latter was formerly considered to be of little clinical importance. more recently, however, it has become evident that these two organisms can produce an identical disease. consequently, it is of interest to detect similarities between them. in the present report, a method for the detection of bacteriocine ("vibriocine") activity of v. cholerae and v. el tor is described. the production of vibriocine appe ...19655322753
colistin disk--a differential method between vibrio cholerae and vibrio eltor. 19665324546
observations on some newer differential features of the el tor vibrio and vibrio cholerae. 19665328778
an indirect fluorescent antibody study of vibrio comma. 19665336437
factors influencing in vitro skin permeability factor production by vibrio cholerae.the development of a new semisynthetic medium which stimulates in vitro production of the skin permeability factor (pf) by vibrio cholerae is described. the effects of ph, aeration, temperature, and length of incubation on pf formation or release in strain 569b and several other strains, or both, are compared. data are presented which show that maximal pf accumulation occurs during a transitional period of growth joining the exponential and stationary phases of the growth cycle. pf elaboration i ...19695344097
[2-deoxy-2,3-dehydrosialic acids. ii. competitive inhibition of vibrio cholerae neuraminidase by 2-deoxy-2,3-dehydro-n-acylneuraminic acids]. 19695349377
reaction of vibrio cholerae and choleragenic toxin in ileal loop of laboratory animals.accumulation of fluid in the ligated ileal loop upon injection of cholera vibrios or choleragenic toxin seems to be a generalized phenomenon in laboratory animals.19695359618
fine structure of vibrio cholerae during toxin production.the fine structural changes associated with cell growth and toxin production have been examined in vibrio cholerae strain 569b. no morphological alterations in the cell envelope are apparent during logarithmic growth with thin-section techniques. however, internal swelling, suggesting alteration of cell envelope permeability, is evident particularly during the late logarithmic and early stationary phases of growth. certain extracellular material demonstrable with negative-stain techniques does a ...19695361220
somatic o antigen relationship of brucella and vibrio cholerae.the antigenic relationship between brucella species and vibrio cholerae was examined by agglutinin and agglutinin-absorption tests by using rabbit antisera. brucella antisera agglutinated only the inaba serotype of v. cholerae and at low titer. inaba-reactive antibody was absorbed by either heat-stable (100 c, 2 hr) ogawa or inaba o antigens. cholera antisera from rabbits immunized with either o or ho antigens of either ogawa or inaba serotypes contained brucella agglutinins. this activity was a ...19695370272
progressive changes of vibrio serotypes in germ-free mice infected with vibrio cholerae.germ-free mice inoculated with vibrio cholerae became colonized with vibrios throughout the gastrointestinal tract, but they did not become ill. high vibrio concentrations in the feces were observed throughout the 3 months of observation in spite of the presence of serum antibody. reciprocal conversions of both inaba and ogawa serotypes occurred regularly after inoculation and could be correlated temporally with the appearance of serum-agglutinating antibody. both of these smooth serotype were l ...19695370274
sex pili in vibrio cholerae. 19695373694
observations on experiments on infant rabbits with vibrio cholerae. 19695374754
diarrhea and accumulation of intestinal fluid in infant rabbits infected with vibrio cholerae in an isolated jejunal segment. 19695374968
the appearance of a choleragenic agent in the blood of infant rabbits infected intestinally with vibrio cholerae, demonstrated by cross-circulation. 19695374970
bacteriocin production by vibrio cholerae. i. effects of vibriocins on vibrio cholerae. 19695399687
release of p-32 compounds from labelled vibrio cholerae and vibrio el tor in ethanol. 19695402473
action of cholera phages on rough strains of classical vibrio cholerae. 19695402474
serological evidence for the identity of the vascular permeability factor and ileal loop toxin of vibrio cholerae. 19705415045
serological identities of proteases and alkaline phosphatases of the so-called nonagglutinable (nag) vibrios and those of vibrio cholerae. 19705415046
mode of action of vibriocin.the mechanism of action of vibriocin, a bacteriocin produced by vibrio comma, was investigated. its lethal action (as defined by the loss in colony-forming ability) was reversed by tryptic digestion within 7 to 10 min after adsorption. the bacteriocin had a pronounced inhibitory effect on deoxyribonucleic acid (dna) synthesis, whereas ribonucleic acid (rna) and protein synthesis continued, although at a reduced rate. chloramphenicol protected sensitive bacteria from the lethal action. degradatio ...19705419258
magnitude and duration of antitoxic response to human infection with vibrio cholerae. 19705421427
peanut hydrolysate as a growth medium for vibrio cholerae (ogawa). 19705424359
protective effect on infections with vibrio cholerae in suckling mice caused by the passive immunization with milk of immune mothers. 19705463400
polyphasic taxonomy of the genus vibrio: numerical taxonomy of vibrio cholerae, vibrio parahaemolyticus, and related vibrio species.a set of 86 bacterial cultures, including 30 strains of vibrio cholerae, 35 strains of v. parahaemolyticus, and 21 representative strains of pseudomonas, spirillum, achromobacter, arthrobacter, and marine vibrio species were tested for a total of 200 characteristics. morphological, physiological, and biochemical characteristics were included in the analysis. overall deoxyribonucleic acid (dna) base compositions and ultrastructure, under the electron microscope, were also examined. the taxonomic ...19705473901
isolation of vibrio cholerae from a well water during a small outbreak of cholera. 19705480374
studies on the mechanism of inhibition of growth of vibrio cholerae by erythrose. 19705487181
chloride dependent growth stimulation of vibrio cholerae (569b inaba). 19705502346
mechanism of action of berberine on vibrio cholerae and vibrio cholerae biotype eltor. 19705505340
effect of berberine on the fatty acid composition of vibrio cholerae and vibrio cholerae biotype eltor. 19705505341
a comparison of strains of so-called nag vibrios with those of strains of vibrio cholerae. 19705505342
a note on designating strains as vibrio cholerae biotype el tor. 19705506195
[an outbreak of intestinal infection due to vibrio cholerae in jerusalem]. 19705512773
incorporation of phenylalanine and uridine by streptomycin-sensitive and streptomycin-dependent vibrio cholerae ogawa ribosomal particles. 19705524317
[gelatin liquefaction by the supernatant of the culture fluid of vibrio cholerae]. 19705528686
[casein digestion by the supernatant of the culture fluid of vibrio cholerae]. 19705528687
[inactivation of colicine by the supernatant from the culture fluid of vibrio cholerae]. 19705528688
[study of vibrio cholerae strains isolated in iran and irak during the 1965-1966 epidemic]. 19705536443
survival of cholera vibrios in food, water and fomites. 19705538199
classification and characteristics of vibrios. 19705538200
cholera phages. 19705538201
human lymphocyte antigen reactivity modified by neuraminidase.human lymphocytes treated with neuraminidase (from vibrio cholera) are more susceptible to lysis with antiserums directed against hl-a antigens in the cytotoxicity test than are the corresponding cells incubated in buffer. enzymetreated cells are also lysed by antibodies other than those directed against hl-a, but control cells are not. the extra sensitivity to antibody disappears after 2 to 6 days in tissue culture.19715564043
amino acid and nitrogen metabolism in chick embryos infected with staphylococcus aureus or vibrio cholerae. 19715570558
some observations on the metabolic activities of chicken cells agglutination positive and negative strains of vibrio cholerae. 19675595577
distribution of vibrio cholerae in the intestine. 19675596264
electron microscopy of particles associated with a bacteriocinogenic vibrio cholerae strain. 19685640388
fatty acids from vibrio cholerae lipids. 19685640986
site and characteristics of electrolyte loss and effect of intraluminal glucose in experimental canine cholera.the site and characteristics of gastrointestinal electrolyte loss were investigated in eight dogs with experimental cholera induced by orogastric administration of 6-hr broth cultures of vibrio cholerae, strain ogawa 395. in these animals, all electrolyte losses originated in the small bowel, predominantly from the jejunum and ileum. the bicarbonate concentration of the small bowel fluid showed a progressive increase from duodenum, where it was less than that of plasma, to the terminal ileum, wh ...19685645863
streptococcal sialidase. ii. kinetic and immunological studies of sialidase produced by group k streptococcus.kinetic and immunological studies were carried out on the sialidase produced by strain 6646, group k streptococcus (k-sialidase). the k(m) values of k-sialidase were 0.9 mm for sialyllactose and 0.17 mm for bovine submaxillary mucin. the antibody against k-sialidase was produced in rabbits immunized with this enzyme. an assay procedure for determination of the anti-k-sialidase activity in terms of reciprocal of the serum dilution corresponding to the 50% inhibition point is described. anti-k-sia ...19685650066
the in vitro activity of halquinol against vibrio cholerae. 19685657269
particulate nature of vibriocin: a bacteriocin from vibrio comma. 19685659626
in vitro production of choleragen and vascular permeability factor by vibrio cholerae.the in vitro production of significant amounts of extracellular choleragen and vascular permeability factor (pf) by vibrio cholerae strain vc-12 (ogawa) in a basal peptone medium required forced aeration, low incubation temperature, and a low initial ph. filtrates of alkaline peptone cultures of vc-12 grown at 37 c contained an ion translocase inhibitory activity but neither choleragen nor pf activity, sterile filtrates of ph 6.5 peptone cultures of vc-12 grown at 29 c contained no ion transloca ...19685663564
esterases and dna base composition analysis of vibrio cholerae and related vibrios. 19685698667
behaviour of an epidemic of vibrio cholerae el tor in gurgaon district, haryana state. 19685701286
some observations on vibrio cholerae. 19685701989
laboratory methods in cholera: isolation of vibrio cholerae (el tor and classical) on tcbs medium in minimally equipped laboratories. 19685707921
morphological changes of vibrio cholerae organisms in glucose saline. 19685709282
comparison of hemolysin, hemolysin-destructive factor and hemodigestive enzyme production by strains of vibrio cholerae and vibrio cholerae type el tor. 19685718716
cyclopropane fatty acids of rugose vibrio cholerae. 19685724978
effect of sodium lauryl sulphate on vibrio cholerae: turbidimetric and electron microscopic study. 19685732219
survival of vibrio cholerae in some of the waters of calcutta. 19695770842
disinfection of household articles contaminated with vibrio cholerae. 19695770843
some observations on vibrio cholerae. 19695771179
experimental canine cholera. ii. production by cell-free culture filtrates of vibrio cholerae. 19695776005
experimental canine cholera. iv. the chronic carrier state for vibrio cholerae. 19695776007
sialidase-like enzymes produced by group a, b, c, g, and l streptococci and by streptococcus sanguis.a group of enzymes were prepared from the culture fluids of streptococci belonging to groups a, b, c, g, and l, and from a strain of streptococcus sanguis. these streptococcal enzymes (designated st-sialidases) released a substance shown to belong to the sialic acid group from the specific substrate bsm-st, a sialomucoid prepared from bovine submaxillary gland. they were inactive on n-acetylneuramin lactose prepared from bovine colustrum and on a sialomucoid prepared from bovine submaxillary muc ...19695776530
neutralization of the vascular permeability factor of vibrio cholerae in man. 19695777737
agglutinating and bactericidal properties of fractions of rabbit anti-vibrio cholerae serum.the major portion of the agglutinating and bactericidal activity of the sera of rabbits immunized with live vibrio cholerae or with cholera vaccine was found in the gammam fractions during the early stages of immunization. after 5 weeks or more, gammag fractions accounted for more than half of the agglutinating activity. when late antibody was measured as the amount of protein precipitated by somatic antigens, nearly 3 times as much gammag as gammam was required for agglutination, and about 30 t ...19695788722
separation of type 2 toxins of vibrio cholerae.choleragenic toxin was separated from vascular permeability factor by ion-exchange chromatography of supernatants of dialyzed peptone cultures of vibrio cholerae. the choleragenic toxin eluted from columns of qae-sephadex with low-ionicity systems is free of permeability factor activity. further elution of these columns with 0.5m nacl removes both the permeability factor and residual choleragenic toxin. when this latter material is chromatographed on columns of carboxymethyl-sephadex, the permea ...19695804723
studies on the mode of action of streptomycin on vibrio cholerae and vibrio el tor. 19695824006
tetracycline sensitivity of vibrio cholerae in calcutta. 19655827191
some observations on vibrio cholerae strains isolated during the controlled field trial of cholera vaccines in calcutta in 1964. 19655827507
studies on the growth inhibitory effect of erythrose on vibrio cholerae. 19655840410
Displaying items 16701 - 16800 of 24874