| concentrations of bacteria in cerebrospinal fluid of patients with bacterial meningitis. | concentrations of bacteria in cerebrospinal fluid ranged from 4.5 x 10(3) to 3 x 10(8) colony-forming units/ml in 27 patients with bacterial meningitis before antibiotic therapy and from 4 x 10(1) to 1.4 x 10(6) cfu/ml in four patients after one to two days of antibiotic therapy. all patients with persistent positive cultures had pretreatment concentrations of 10(7) cfu/ml or greater. a significant association was observed between cerebrospinal fluid lactic acid dehydrogenase activity and concen ... | 1976 | 3635 |
| relation of concentrations of bacteria and bacterial antigen in cerebrospinal fluid to prognosis in patients with bacterial meningitis. | | 1977 | 13301 |
| resistance to antibiotics of bacteria involved in respiratory infections (author's transl). | the present status of resistance to antibiotics of bacteria involved in respiratory infections is reviewed. schematically it can outlined as follows. streptococcus b-haemolyticus as well as pneumococcus did not change their sensitivity to penicillin, but some strains are now resistant to tetracycline. streptococcus viridans, enterococcus and h. influenzae did not change substantially their sensitivity to antibiotics. staphylococcus aureus is the bacterial species that always poses some problems ... | 1976 | 13744 |
| determination of the effective concentration of jodonal a for the disinfection of the skin and teats after milking. | the bactericidal effectivity of jodonal a in 1:10, 1:5, and 1:3 solutions was tested on human skin and on the teats of cow mammary glands. the 1:3 dilution ratio proved best for three-minute exposure. jodonal a used in this concentration in 522 cows for the post-milking disinfection of teats for 10 months exerted no harmful effect on the skin of the mammary glands. | 1976 | 16377 |
| devitalizing effect of jodonal a in vitro on bacteria subject to a short-term exposure. | in a three-minute exposure in vitro jodonal a devitalized a culture of serological group b streptococci in a 2% concentration, staphylococcus aureus in a 16% concentration, pneumococcus in a 4.5% concentration, corynebacterium pyogenes in a 2.5% concentration, pseudomonas aeruginosa in a 3% concentration, and klebsiella pneumoniae in a 2% concentration. hence jodonal a concentrations higher than 16% should be tested for udder teat disinfection after the removal of teat cups. | 1976 | 16378 |
| bacterial etiology of otitis media during the first six weeks of life. | tympanocentesis was performed on 70 infants who had otitis media during the first six weeks of life. the bacteria isolated from their middle-ear effusions were streptococcus pneumoniae (13 patients), neisseria catarrhalis (11 patients), hemophilus influenzae (ten patients), enterobacteriaceae (four patients), staphylococcus aureus (four patients), streptococci (groups a and b) (three patients), and pseudomonas aeruginosa (two patients). thirty patients (42.9%) had middle-ear effusions which did ... | 1978 | 26735 |
| detection of experimental bacteremia and fungemia by examination of buffy coat prepared by a micromethod. | rabbits received intravenous injections of bacteria or fungi, and a comparison was made of the abilities of broth cultures, plating after dilution either in saline solution or in distilled water containing triton x-100, and buffy coat examinations to detect the organisms in heart blood. the most sensitive method was broth culture. by microscopy or subculture of buffy coat cells prepared by centrifugation of blood in microhematocrit tubes, organisms were rapidly and regularly detected when their ... | 1979 | 38662 |
| immunochemical cross-reactions between type iii group b streptococcus and type 14 streptococcus pneumoniae. | serological cross-reactions between certain streptococci and some serotypes of streptococcus pneumoniae have been reported. these studies detail the serological cross-reactivity observed between hot hcl-extracted group b streptococcus type iii (gbs iii) antigens and s. pneumoniae type 14 (pn 14) polysaccharide. similar electrophoretic migration patterns of gbs iii and pn 14 were observed when either type-specific bgs iii antisera or pneumococcal omniserum was utilized to precipitate these antige ... | 1979 | 40876 |
| a simple method of detecting staphylococcal hemolysins. | a modification of the "one-plate method" for detection of staphylococcal hemolysins has been described. bacterial strains of staphylococcus aureus, streptococcus agalactiae and cornebacterium pseudotuberculosis were replaced by their prepurified hemolytically active exosubstances: beta-toxin, camp-factor, and, the exosubstance of corynebacterium pseudotuberculosis called corex. by means of the modification described, exact detection of hemolysins in possible with staphylococcal strains producing ... | 1979 | 44782 |
| [diagnostic significance of lactose level in milk. 1. lactose level in first quarter milk samples following artificial udder irritation and infection]. | studies were conducted into lactose levels of milk in response to experimentally irritated or artificially infected udder quarters. milk lactose was found to be suitable as a model parameter by which to objectivate pathophysiological processes in the udder in the context of research, such as experiments on artificial udder infection or testing of udder tolerance of certain medicaments. | 1979 | 44832 |
| demonstration of the capsular antigens of bovine group b streptococci by the serum-soft agar method. | the elaboration of type-specific capsular antigens by group b streptococci can be demonstrated by the serum-soft agar technique. group b streptococci isolated from bovine mastitis, namely, strains 9f, 14mi, 8mo, 44b, and 4s, were shown to form diffuse and compact types of colony morphology in serum-soft agar. immunochemical and chemical analyses of antigens isolated from diffuse and compact colonies of strain 9f indicated that the diffuse-type growth of this strain was due to the elaboration of ... | 1975 | 57966 |
| assessment of group b streptococcal opsonins in human and rabbit serum by neutrophil chemiluminescence. | the factors important in host defense against group b streptococci are not well understood. the role of antibody and complement in the prevention of serious infection by these organisms is not known because, to date, a reliable measure of functional opsonic activity has not been developed. recently, it has been shown that neutrophils produce a chemiluminescence after ingestion of particulate matter, and that this event can be detected and quantitated in a liquid scintillation system. we have ada ... | 1976 | 62761 |
| antigenic specificity of opsonophagocytic antibodies in rabbit anti-sera to group b streptococci. | an opsonophagocytic assay has been developed which requires human polymorphonuclear leukocytes, immune serum, and complement for optimal killing of group b streptococci. only with all three of these components was killing of greater than 1.0 log10 of the initial inoculum achieved, using rabbit antisera directed to homologous strains of each of the five known serotypes of group b streptococci. titers of specific antisera which opsonized the strains and resulted in greater than 1 log 10 reduction ... | 1977 | 65433 |
| group-b streptococci in the newborn. | | 1977 | 66452 |
| group-b streptococci in the newborn. | | 1977 | 67507 |
| accentuation of staphylococcal hemolysis (camp-like test) by pneumococci. | a camp-like phenomenon can be observed in streptococcus pneumoniae. it is supposed to be caused likewise as in group b streptococci by a haemolysis accentuating factor. however, the form of the accentuated haemolysis is different from that in group b streptococci and similar to that in listeria. | 1977 | 18864 |
| adherence of bacterial to vaginal epithelial cells. | vaginal epithelial cells from healthy women were washed and incubated in tissue culture medium with freshly isolated bacteria of the indigenous vaginal flora and with bacteria of species that have been discussed in conjunction with genital infections. after incubation and washing, the number of bacteria that adhered per cell was determined. the influence on the attachment rate of such factors as variations in the washing procedure, bacterial density, and incubation time was assessed. lactobacill ... | 1976 | 5372 |
| microcapsule of type iii strains of group b streptococcus: production and morphology. | the yield of purified type iii polysaccharide of group b streptococcus was significantly improved by modification of the growth medium. culture of organisms in standard todd-hewitt broth resulted in acid accumulation during the exponential phase of growth and poor yield of type iii polysaccharide when extracted from cells by washing with neutral buffer solution. by increasing the buffering capacity of the broth medium, acid accumulation was prevented, and the number of viable cells was increased ... | 1976 | 2557 |
| elisa methodology for polysaccharide antigens: protein coupling of polysaccharides for adsorption to plastic tubes. | a method is described which permits the adaption of elisa techniques for measurement of antibody against bacterial polysaccharides. first, the polysaccharides antigen is covalently bound to poly-l-lysine, using cyanuric chloride as the coupling agent. the poly-l-lysine then adsorbs to the walls of plastic tubes, thus immobilizing the polysaccharide coupled to the poly-l-lysine. the method is simple, rapid, and utilizes small amounts of polysaccharide antigen. | 1979 | 38284 |
| [identification of group b streptococci by an indirect hemagglutination method]. | | 1977 | 69359 |
| bacteriostatic activity in cow's milk from udders infected with streptococcus agalactiae and staphylococcus aureus. | milk samples from infected udders contained more lactoperoxidase and more thiocyanate than before infection. irritation of 10 quarters of 5 cows caused the increase in the bacteriostatic activity of milk. bacteriostatic activity of milk from the udders infected with staphylococci dropped after several weeks of chronic mastitis. | 1977 | 75671 |
| blood-transfusion in group-b streptococcal sepsis. | transfusion of fresh whole blood was evaluated as a means of supplying opsonins and lessening the high mortality of group-b streptococcal sepsis in neonates. pre-transfusion and post-transfusion sera from 22 infants were examined for the presence of opsonins against group-b organisms. opsonic activity rose only when donor blood containing heat-stable antibody was administered in high volume (greater than 40% of blood-volume). 9 of 9 infants transfused with blood containing antibody to their infe ... | 1978 | 76171 |
| transferable drug resistance to group a and group b streptococci. | | 1978 | 76183 |
| existence of multiple immunodeterminants in the type-specific capsular substance of group b type ia streptococci. | rabbits immunized with group b, type ia streptococci produce two distinct populations of protective antibodies. evidence is presented indicating that these antibodies are directed against two major immunodeterminants which coexist in the specific type ia antigen. immunochemical data, using purified antibody preparations, indicate that the type substance, a sialic acid polymer consisting of galactose, glucose, glucosamine, and sialic acid, possesses two distinct immunodominant determinants, termi ... | 1978 | 76609 |
| rapid identification and antibiotic sensitivity testing of bacteria isolated from clinical infections. | a total of 834 bacterial strains isolated from urine were subjected to rapid biochemical and serological identification and rapid antimicrobial sensitivity testing using autobac 1. for enterobacteria (742 strains) six tests (acetoin-, beta-galactosidase-, hydrogensulphide-, indole-, ornithin-decarboxylase-and urease-production) correctly identified to genus or species level more than 99% of the strains within four hours. staphylococci and streptococci (92 strains) were identified with full accur ... | 1977 | 69255 |
| complete versus selective dry cow therapy for mastitis control. | two hundred and thirty-two cows were assigned alternately to complete dry cow therapy (infusion in all quarters on the day of drying off) or selective therapy (infusion in all quarters if a history of mastitis, california mastitis test score of +2 or +3 in any quarter, or if cell counts from bucket milk samples as determined by the membrane filter-deoxyribonucleic acid procedure were above 500,000 cells/ml). a dry cow product containing 10(6) units of procaine penicillin g and 1 g of dihydrostre ... | 1978 | 81843 |
| early treatment of neonatal group-b streptococcal infection. | | 1978 | 82024 |
| preventing group-b infections in babies. | | 1978 | 82741 |
| antibiotic treatment and neonatal group-b streptococcal infection. | | 1978 | 82758 |
| preventing group-b infections in babies. | | 1978 | 82883 |
| multiple polysaccharide antigens of group b streptococcus, type ia: emphasis on a sialic acid type-specific polysaccharide. | group b streptococci, type ia (strain 090/14/4), were subjected to sequential extraction procedures and the various extracts were fractionated by a combination of deae-cellulose chromatography and gel-filtration. three major antigens were isolated: the conventional group-specific and type-specific carbohydrates and an acidic polysaccharide consisting of galactose, glucose, glucosamine, and sialic acid. immunochemical data suggest that the acidic antigen, with the exception of the immunodominant ... | 1977 | 68081 |
| immunoprecipitation and opsonic cross-reaction between type-14 pneumococcus and group-b streptococcus type iii. | antisera directed against type-14 pneumococcus was opsonic for several strains of type-iii group-b streptococcus. furthermore, the polysaccharide antigen in the polyvalent pneumococcal vaccine reacted to form precipitation lines with antisera directed against type-14 pneumococcus and group-b streptococcus type iii immunisation with currently available pneumococcal vaccine may provide opsonic antibody against group-b streptococci and provide a method of preventing neonatal group-b streptococcal i ... | 1979 | 84130 |
| phage typing of group b streptococci. | | 1979 | 84983 |
| intramembranous localization of bacteria in beta-hemolytic group b streptococcal chorioamnionitis. | an unusual pathologic finding consisting of large colonies of bacteria, localized immediately beneath the epithelial layer of the amnion, has been observed in association with an example of group b beta-hemolytic streptococcal chorioamnionitis. postpartum endometritis as well as neonatal sepsis and meningitis occurred. histologic examination of the umbilical cord and placenta revealed routine features of intraamniotic inflammation, but the membranes were characterized by the presence of unusual ... | 1979 | 85286 |
| treatment of purulent meningitis in infants. | | 1979 | 85886 |
| prevention of group-b beta-haemolytic streptococcal septicaemia in low-birth-weight neonates by penicillin administered within two hours of birth. | between january, 1969, and may, 1974, 11 of 1208 low-birth-weight infants had early onset group-b streptococcal septicaemia. all 11 infants were of less than 35 weeks gestational age and 9 presented with the clinical and radiological signs of idiopathic respiratory distress syndrome. 10 died. antibotics were given to 3 infants only, but not before the age of 12 h. from june, 1974, infants less than 35 weeks gestational age, and from january, 1977, infants less than 2500 g, received systemic peni ... | 1979 | 85947 |
| rapid recognition of group-b streptococci. | | 1977 | 64785 |
| penicillin prophylaxis for neonatal group-b streptococcal infection. | | 1979 | 89348 |
| comparative in vitro studies of a number of anti-mastitis antibiotics. | in vitro activities of penicillin, ampicillin, dihydrostreptomycin, nafcillin, cloxacillin and commercially available combinations of these antibiotics against a variety of gram-positive mastitis-causing micro-organisms were examined. as a rule, penicillin proved to be more active against penicillin-sensitive strains of micro-organisms than ampicillin and nafcillin and far more so than cloxacillin. in combination with di-hydrostreptomycin, which in itself showed hardly any activiy, the activity ... | 1976 | 59958 |
| group-b streptococcal infection in the newborn. | | 1979 | 90847 |
| radioimmunoassay for measuring antibodies specific for group b streptococcal types ia, ib, ic, ii, and iii. | the object of this study was to develop a test that would measure antibodies directed against group b streptococcal types ia, ib, ic, ii, and iii. the type-specific carbohydrate antigens were purified, labeled with 125i, and used to develop a radioimmunoassay. this procedure should be particularly useful in testing human sera for group b type-specific antibodies, since it requires very small quantities of antigens and measures primary type antigen-antibody interactions. | 1976 | 58870 |
| findings of serotypes of group b streptococci in human and bovine sources. | five hundred and fifty-five strains of s. agalactiae of human or bovine origin were serologically typed. in human strains, serotype ia was the most frequent irrespective of the source and kind of cultivation material, but serotype r was very frequent in urine. in bovine strains, one serotype was found as a rule in one stable both in small private and large socialist farms. the reason for such uniformity of serotypes is not known. monocolonisation is one of the alternatives, but it seems more rea ... | 1979 | 94080 |
| immunochemical characterization of the "native" type iii polysaccharide of group b streptococcus. | the type iii polysaccharide of -roup b streptococcus has been isolated and purified by a method that employs washing of intact cells at neutral ph. that the polysaccharide prepared by this procedure is the "native" type iii antigen is suggested by its molecular size in excess of 10(6) daltons, its degradation by acid and heat treatment to a fragment with immunologic characteristics of the classical hcl antigen, and its type-specific serologic activity. the type iii polysaccharide in native form ... | 1976 | 55450 |
| modified method for serological identification of group b streptococci. | extracts from 10- and 40-ml cultures compared favorably for serological identification of group b streptococci. typing by gel diffusion proved reliable and efficient. these modifications save time, media, and antisera. | 1978 | 97305 |
| molecular studies and possible relatedness between r plasmids from groups b and d streptococci. | resistance plasmids isolated from streptococcus agalactiae (group b) and s. faecalis (group d) have been compared in regard to resistance markers, molecular weight, and dna-dna homology. three of them (pip501, pip612, and pip613) have been found to confer identical (or very similar) resistance patterns (erythromycin, lincomycin, and streptogramin b, respectively) and to have similar molecular weights (19.8 x 10(6), 22.7 x 10(6), and 17.6 x 10(6), respectively) and a high level of dna-dna homolog ... | 1978 | 99083 |
| early onset nonenterococcal group d streptococcal infection in the newborn infant. | | 1978 | 99505 |
| hygiene in the prevention of udder infections. iv. evaluation of teat dips with excised cows' teats. | suspensions of staphylococcus aureus, streptococcus agalactiae, escherichia coli, and pseudomonas aeruginosa were used to contaminate teats excised from cows. commercially available teat dips were applied for evaluation of comparative germicidal activity. iodophors, sodium hypochlorite, and sodium dichloro-s-triazenetrione were highly effective against all four test organisms. quarternary ammonium, chlorhexidine, and cetylpyridinium chloride were effective against staphylococcus aureus, and stre ... | 1978 | 100535 |
| role of antibody and complement in opsonization of group b streptococci. | a requirement for the classic complement pathway in opsonization of group b streptococci was observed by using both a chemiluminescence and a radiolabeled bacterial uptake technique. the classic pathway increased levels of opsonization for types ia and ii stock and wild strains and for some type iii wild strains. in contrast, other type iii wild strains and the type iii stock strain had accelerated kinetics of uptake in the presence of an intact classic pathway, but the level of opsonization was ... | 1978 | 101462 |
| [epidemiological study on beta hemolytic streptococci among healthy school children in toda city, saitama (author's transl)]. | | 1978 | 101618 |
| [a study on beta-hemolytic streptococci isolated from the throats of healthy school children in taiwan: changing patterns of type distribution and drug sesceptibility (author's transl)]. | | 1978 | 101620 |
| [effect of sodium fluoride on samples of oral flora. clinical application]. | | 1977 | 102105 |
| experimental group b streptococcal infection in the rhesus monkey. i. disease production in the neonate. | group b streptococci (gbs) are responsible for serious infections of newborn infants. an experimental model for gbs infection was developed in the newborn rhesus monkey in order to obtain more information concerning the pathogenesis of such infections. a series of 29 newborn monkeys were inoculated with either type ic or type iii gbs or sterile broth. fatal neonatal meningitis without associated pneumonia was produced consistently following intracerebral inoculation with either type ic or type i ... | 1978 | 102197 |
| non-group d streptococcal meningitis misidentified as enterococcal meningitis. diagnostic and therapeutic implications of misdiagnosis by screening microbiology. | two patients had nonhemolytic gram-positive coccal meningitis. both pathogens were initially misidentified as a group d enterococcus by growth in "selective" media, which led to the use of inappropriate and potentially toxic systemic and intrathecal aminoglycosides. careful evaluation of the antibiotic sensitivity data and additional microbiological studies allowed correct identification of the organism. the important diagnostic and therapeutic considerations in differentiating true enterococcal ... | 1978 | 102268 |
| treatment of bacterial endocarditis with vancomycin. | five patients with bacterial endocarditis who were allergic to penicillin were treated successfully with vancomycin. the causative microorganisms were streptococcus bovis, s faecalis, s agalactiae, s intermedius, and staphylococcus aureus. except for the strain of s faecalis, vancomycin was bactericidal against these organisms at easily achievable serum concentrations. to insure a bactericidal serum titer of 1:8 or greater, streptomycin was added in the therapy of the case caused by s faecalis. ... | 1978 | 104623 |
| nasal colonization of infants with group b streptococcus associated with intrauterine pressure transducers. | the rate of nasal colonization with group b streptococcus in infants cultured at the time of discharge from the nursery rose significantly during a four-month interval. investigation of this trend resulted in detection of group b streptococci in the domes of two intrauterine pressure transducers (ipts). subsequent routine sterilization of ipt domes after each maternal use was associated with a decline in infant group b streptococcal colonization to the usual endemic rate in the nursery. retrospe ... | 1978 | 105055 |
| [isolation of beta-hemolytic streptococci in proctology]. | | 1978 | 105958 |
| [localization of group a streptococcal nontype-specific antigens and their occurrence among streptococci of different groups]. | it was shown by immunodiffusion methods that nontypespecific antigens revealed in the hcl extracts of streptococcus, group a, were localized in the cell wall. in b, e, h, k, l, m, p, s, t streptococci groups there was revealed only one, and in c and g streptococci groups--two antigens identical to the htc antigens of streptococci, group a. besides, an antigen, which was apparently specific specific for group a streptococcus only, was detected. the data obtained should be taken into consideration ... | 1979 | 106600 |
| complete and incomplete ibc protein fraction in group b streptococci. | the ibc protein fraction of group b streptococci was isolated from the type ib strain h36b, the type ic strain a909, and the type ic strain 335, and examined against antisera by immunodiffusion and immunoelectrophoresis. the fraction from the ib strain and one of the ic strains (a909) contained two antigens or groups of antigens, called the alpha and beta antigens, respectively. strain 335 produced the alpha but not the beta antigen. this was also the case with three other group b isolates previ ... | 1979 | 107722 |
| production and evaluation of antisera for serological type determination of group-b streptococci by double diffusion in agarose gel. | a double diffusion technique for serological typing of group-b streptococci is presented. the method is valuable both for type determination on a large scale, as well as for evaluation of the specificity of type antisera. as in previously published methods, hc1-extracted antigens are used. the preparation of type antisera is described and the reactions of some selected sera are given in figures. the advantages of the method are good economy of antisera and easy recognition of weak and/or unspeci ... | 1979 | 108920 |
| conjugative r plasmids in streptococcus agalactiae (group b). | | 1979 | 109871 |
| [bacteria of current interest. 4. new infections caused by known bacteria-- beta group streptococcus, haemophilus influenzae, aeromonas and bacillus infections]. | | 1979 | 110966 |
| office microbiology. | | 1979 | 111268 |
| [rapid methods useful for determination of streptococcal groups with special reference to streptococci of groups b and d]. | a study was carried out on the efficiency of certain rapid methods for the identification of streptococcal groups, especially groups b and d, methods based upon physiologic properties such as hippurate hydrolysis, production of pigment, esculin hydrolysis, tolerance to salt and bilolysis, associated with the classical tests, for instance the hemolysis type and sensitivity to bacitracin and optochin. by these tests, accessible to hospital laboratories, a number of 3083 streptococcal strains were ... | 1979 | 111335 |
| immunochemical analysis of distinct cellular antigens isolated from a nontypable bovine strain of group b streptococci. | four immunologically distinct antigens were isolated from a bovine strain of group b streptococci, designated 14 mi. chemical analysis indicated that two of the cell surface antigens consisted of glucose, galactose, and glucosamine, whereas the other cell surface antigen, an acidic protein, contained a predominance of aspartic acid, glutamic acid, and alanine. a cell wall-associated triheteroglycan consisting of galactose, glucose, and glucosamine was isolated from strain 14 mi by 10% trichloroa ... | 1976 | 55388 |
| new serotypes of group b streptococci isolated from human sources. | antisera raised in rabbits against two nontypable group b streptococci, which were not agglutinable in a specific group b antiserum, were tested with acid extracts of 78 nontypable human group b streptococci. one antiserum (12351) reacted with 15 strains, and the other (7271) reacted with only 2 strains. antiserum to wilkinson's strain ss 1169 (nt 1) reacted with three strains. antiserum against strain 12351 appears to be a useful antiserum against a new type antigen, which is probably polysacch ... | 1979 | 115895 |
| the prevalence of group b streptococci in human urogenital secretions. | urogenital secretions from a total of 510 patients (153 female and 151 male venereological patients, 123 gynaecological patients and 83 gynaecologically normal women) have been examined for group b streptococci (b-str.) and gonococci. the prevalence of b-str. (32%) among the female venereological patients was significantly higher than among the gynaecological patients (21.1%) and normal women (18.0%). urethral samples gave a higher recovery rate of b-str. than cervical samples. a significant cor ... | 1979 | 118523 |
| identification of sialic acid in polysaccharide antigens in group b streptococcus. | by means of paper chromatographic techniques with purified, sialic acid-containing, bacterial antigen standards, sialic acid, as well as galactose and glucosamine, have been identified as components of each type-specific antigen of group b streptococcus. rhamnose was not detected in the group b antigen isolated by the classical hcl and heat extraction method. | 1976 | 55386 |
| pharyngeal beta-hemolytic streptococci: a study in american military dependent children stationed in west germany. | | 1979 | 119925 |
| factors influencing adherence of group b streptococci to human vaginal epithelial cells. | factors affecting the adherence of group b streptococci to human vaginal epithelial cells in vitro were examined. maximal adherence was achieved within 15 min of incubation of bacteria with epithelial cells. adherence was temperature and ph dependent; maximal adherence occurred at 37 degrees c and ph 5.5. killing of streptococci with ultraviolet light or penicillin did not affect adherence. similarly, adherence was not altered by preincubating epithelial cells at 65 degrees c for 30 min. thus ne ... | 1979 | 44701 |
| [microbial etiology of subclinical bovine mastitis in the santa fe dairy basin]. | a study of 320 samples of mammary quarters from cows in 40 dairy farms around santa fe city during 1977-1978 was made. the samples were selected based on clinical examination and california mastitis test (gmt). high percentage of subclinical mastitis was found. the etiological agents most frequently isolated were staphylococcus aureus (54,1%), streptococcus agalactiae (23.4%) and pseudomonas aeruginosa (13,2%). a winter increment of s. aureus (48,1%) and p. aeruginosa (3,7% and 22,5%) was observ ... | 1979 | 122386 |
| migration inhibition of peritoneal macrophages by peptidoglycan. | previous studies have shown that peptidoglycans from group a and b streptococci inhibit the migration of peritoneal exudate cells from non-sensitized rats and guinea pigs. in the present studies peptidoglycans from s. aureus and s. epidermidis were found to inhibit the migration of cells to the same extent as group a streptococcal peptidoglycan. in contrast, hsa-pentapeptide, an immunologically active synthetic analog of the peptide moiety of peptidoglycan which is free of the intrinsic toxicity ... | 1975 | 126562 |
| [grouping of a, b, c and g beta-hemolytic streptococci by the phadebact streptococcus test (author's transl)]. | | 1979 | 44618 |
| [type-specific antigens of group b streptococci. typing methods (author's transl)]. | | 1977 | 137776 |
| [radiologic findings in newborns with group b streptococcal septicemia: clinical importance of heart size and lung manifestations (author's transl)]. | chest radiographs of thirteen neonates with group b streptococcal septicemia were evaluated for signs of early diagnosis. six of the neonates had chest radiographs as seen in idiopathic respiratory distress syndrome (rds). seven patients had radiologic findings consistent with neonatal pneumonia. the children with rds were in general smaller and born prematurelly, but three neonates with x-rays resembling rds had normal birth weights and thus were mature. cardiomegaly was observed in a high perc ... | 1979 | 156811 |
| susceptibility of streptococci to newer tetracyclines and cephalosporins and to other antimicrobial agents. | two hundred and thirty-nine strains of streptococcus including 71 strains of group a, 81 strains of group b, 69 strains of enterococci, and 18 strains of s. pneumoniae were tested against 12 antimicrobial agents using an agar dilution method. cefamandole was the most active cephalosporin tested. doxycycline and minocycline were more active than tetracycline, although the tetracyclines were considerably less inhibitory than the cephalosporins. regression line analysis of zones of inhibition versu ... | 1979 | 40435 |
| [prevention of bovine mastitis (review of foreign literature)]. | | 1977 | 201078 |
| group-b streptococci at a london hospital. | | 1977 | 72327 |
| diagnosis and etiology of nongonococcal urethritis. | the observation of more than four polymorphonuclear cells (pmn) per high-power field (hpf) in gram-stained smears of urethral secretions was found to differentiate patients with urethritis from patients without urethritis. a urethral discharge was present in 78% of patients with nongonococcal urethritis (ngu). dysuria without demonstrable urethral discharge and with fewer than four pmn/hpf did not appear to fit into the ngu spectrum. ngu is now defined to include men who have negative urethral c ... | 1978 | 213495 |
| synergistic hemolysis phenomenon shown by an alpha-toxin-producing clostridium perfingens and streptococcal camp factor in presumptive streptococcal grouping. | a new phenomenon of synergistic hemolysis by clostridium perfringens alpha-toxin and the streptococcal camp factor on human and guinea pig erythrocytes is described. a possible mode of action of the camp factors is suggested. on human blood agar all of the tested isolates of group b streptococci gave an arrowhead-shaped zone of hemolysis; 74% of group a gave a crescent-shaped lytic zone, whereas all isolates of groups c and g and the remaining 26% of group a streptococci gave a bullet-shaped lyt ... | 1978 | 215600 |
| sexually transmissible vaginal infections in pregnancy. 2. less common infections. | | 1979 | 218182 |
| aetiology of mastitis in nili-ravi buffaloes of pakistan. | | 1975 | 239554 |
| upper respiratory tract spread of group b streptococci type i b in a kindergarten. | in a kindergarten with 42 children and 17 female staff members, an epidemic of group b streptococcal carriage in the upper respiratory tract occurred. in the middle of february 1978, 6 children and 5 adults carried type i b streptococci in the throat while only 2 of these 11 were carriers 2 weeks later. only one other streptococcus, belonging to type ii, was found in the throat specimens. five strains other than type i b were found in the urogenital tract of the staff. three type i b throat carr ... | 1979 | 37592 |
| comparison of staphylococcal coagglutination, latex agglutination, and counterimmunoelectrophoresis for bacterial antigen detection. | soluble antigens of haemophilus influenzae type b, streptococcus pneumoniae, neisseria meningitidis, and group b streptococcus were looked for in cerebrospinal fluid, serum, and urine by using the staphylococcal coagglutination test, latex agglutination test, and counterimmunoelectrophoresis. the staphylococcal coaggultination and latex agglutination tests were more sensitive than counterimmunoelectrophoresis in identifying antigens of h. influenzae type b, s. pneumoniae, and n. meningitidis. no ... | 1979 | 34622 |
| isolation of type-specific polysaccharide antigen from group b type ib streptococci. | group b streptococcus type ib (strain h36b) was subjected to digestion with extracellular muralytic enzymes prepared from streptomyces albus. type ib-specific polysaccharide antigen was isolated from the lysate by alcohol precipitation and sepharose 6b chromatography. the purified type ib antigen has a kd value of 0.31 on a sepharose 4b column and contains four sugars, galactose, glucose, n-acetyl glucosamine, and sialic acid in a molar ratio of 2.05:0.86:1.00:0.90. acid treatment (ph 2.0) of th ... | 1979 | 33225 |
| the prevalence and persistence of group b streptococcal colonization among hospital personnel. | a prospective study was performed to determine the prevalence and persistence of group b streptococcal colonization among obstetric (high-risk) and nonobstetric (low-risk) personnel. seventy-four individuals participated in the study and the following sites were sampled: throat, rectum, vagina (females) and anterior urethra (males). the overall colonization rate was 32.4% and no statistical difference was found between high- and low-risk groups. the most frequently recovered serotypes were type ... | 1978 | 32118 |
| some factors affecting selective adherence of microorganisms in the bovine mammary gland. | some parameters affecting the adherence of microbes to the ductular epithelium of the bovine mammary gland were studied. adherence increased from teat sinus to lactiferous sinus to the large ducts, and cells from the lactiferous sinus to the large ducts, and cells from the lactiferous sinus were used for all other experiments. there was no difference in adherence to cells from different quarters of the same cow, but there were significant differences between cows. scanning electron microscopy su ... | 1977 | 319059 |
| group b streptococcal and pneumococcal sepsis in newborn infants: the role of pneumococcal antibody. | | 1978 | 30938 |
| demonstration of opsonic activity and in vivo protection against group b streptococci type iii by streptococcus pneumoniae type 14 antisera. | the present studies demonstrate that antisera directed against streptococcus pneumoniae type 14 is opsonic for group b streptococci type iii in a neutrophile-mediated bactericidal assay. specificity was demonstrated by the observations that group b streptococci type iii and s. pneumoniae type 14 adsorbed the opsonic activity of anti-s. pneumoniae type 14 antisera. group b streptococci strain 090r (devoid of type antigens) and s. pneumoniae type 3, did not remove the opsonic activity of anti-s. p ... | 1978 | 29937 |
| neonatal sepsis at the johns hopkins hospital, 1969-1975: bacterial isolates and clinical correlates. | the experience with neonatal sepsis at the johns hopkins hospital during 1969-1975 was reviewed. major pathogens included escherichia coli, group b streptococcus, other streptococci, and klebsiella. nineteen percent of coliform isolates were kanamycin-resistant. the frequency of recovery of e. coli was increased in early-onset sepsis, and the frequency of recovery of klebsiella was increased in late-onset sepsis. the mortality rate was 23%. the frequency of recovery of e. coli was increased in f ... | 1977 | 319288 |
| [suggestion for a standardized method for the determination of antibiotics resistance in the routine laboratory]. | | 1977 | 319528 |
| group b streptococcal endocarditis. | a retrospective study of group b streptococcal endocarditis during 1965-74 in aberdeen general hospitals revealed that group b streptococci how principally affect patients in the older age groups with or without a history of antecedent heart disease. despite recent reports of increased group g infections in obstetric and perinatal practice there were no cases of post-puerperal endocarditis. although aortic valve involvement would appear to be increasing, group b streptococci still show a marked ... | 1977 | 319529 |
| subdural empyema in an infant due to group b beta-hemolytic streptococcus. | | 1977 | 319652 |
| group b beta-hemolytic streptococcal colonization. acquisition, persistence, and effect of umbilical cord treatment with triple dye. | following an outbreak of group b beta-hemolytic streptococcal neonatal infection (gbs), a prevalence survey of gbs colonization was performed on 238 infants. no important differences were noted in the prevalence of colonization when the infants were grouped according to age. follow-up of 24 colonized babies for three months disclosed that most had persistence of gbs at the rectum and pharynx. local umbilical cord care with triple dye (td) or hexachlorophene skin cleanser was compared with untrea ... | 1977 | 319653 |
| evaluation of the counterimmunoelectrophoretic (cie) procedure in a clinical laboratory setting. | the counterimmunoelectrophoretic (cie) procedure was evaluated under clinical laboratory conditions to determine its validity and comparability with culture methods. the procedure was further evaluated to determine applicability to a variety of clinical samples. an inexpensive set-up was developed to utilize the cie procedure at bench level. results indicated the procedure to be sensitive in detecting haemophilus influenzae, type b, and neisseria meningitidis (meningococcus), group b. the proced ... | 1978 | 29483 |
| summary of the workshop on perinatal infections due to group b streptococcus. | | 1977 | 69669 |
| fiberoptic bronchoscopy and culture bacteria from the lower respiratory. | forty-five specimens were obtained by sequential translaryngeal aspiration and fiberoptic bronchoscopy from 31 clinically unifected patients with lung cancer in order to evaluate the reliability of routine fiberoptic bronchoscopy for culture of the lower respiratory tract. bacteria were recovered brom 98 percent (44) of the specimens obtained via fiberoptic bronchoscopy and from 58 percent (26) of the specimens obtained by the preceding translaryngeal aspiration. the microorganisms grown from cu ... | 1977 | 17516 |
| group b beta-hemolytic streptococci as an important cause of perinatal mortality. | bacteriological and pathological examinations of all 73 stillborn infants and 96 infants dying soon after delivery in västerås, sweden during the period 1971-1974 are reported. 35 infants had a severe infection. beta-hemolytic streptococci group b were isolated in 7 cases from different organs. intrauterine death occurred in 2 cases; 4 liveborn infants showed early signs of respiratory distress, apneic episodes and cyanosis; 1 infant showed signs of intrauterine asphyxia and was severely asphyct ... | 1977 | 320652 |
| group b beta hemolytic streptococcal infection in neonates. | | 1977 | 16822 |
| vaginal colonization with group b streptococcus: a study in college women. | vaginal specimens for culture of group b streptococcus and anonymous questionnaires were obtained from 499 college women. group b streptococcus was isolated from 90 (18.0%) of the participants. a selective broth medium was more sensitive for detection of vaginal isolates (85 of 493; 17.2%) than was direct inoculation of blood agar plates (44 of 466; 9.4%). the most prevalent serotypes among the isolates were type iii (37.9%) and type ii (25.3%). logit analysis identified four factors associated ... | 1977 | 321702 |
| immunological investigation of infants with septicemia or meningitis due to group b streptococcus. | purified polysaccharide from type iii group b streptococcus contains both a type iii-specific determinant and another determinant that is common to strains of serotypes other than type iii. the polysaccharide contains sialic acid, galactose, heptose, glucose, glucosamine, and mannose. serum antibody to this antigen was measured by means of a radioactive antigen-binding assay. sera from 36 (67.9%) of 53 women with healthy newoborns contained antibody, a prevalence significantly different from tha ... | 1977 | 70493 |