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the 23s/5s ribosomal rna genes (rrl/rrf) are separate from the 16s ribosomal rna gene (rrs) in borrelia burgdorferi, the aetiological agent of lyme disease.dna fragments containing the rrna genes for borrelia burgdorferi strain b31 were cloned in bacteriophage lambda embl3. a restriction map of the fragments was constructed and the organization of the rrna genes was determined by southern hybridization. one genomic dna fragment contained a single copy of the rrs sequence and another cloned fragment contained both rrl and rrf sequences. the results revealed that the rrs gene is located separately from the set of rrl/rrf genes, suggesting that these ...19921379622
current recommendations for the treatment of lyme disease.lyme disease is a multisystem inflammatory disease caused by infection with borrelia burgdorferi. soon after the tick bite which transmits the infection, the pathognomonic skin rash erythema chronicum migrans occurs in 50 to 70% of patients, often with associated symptoms resembling a 'summer cold' or viral infection. therapy for this stage of disease consists of 3 to 4 weeks of oral therapy. the agents currently used are: amoxicillin (500 mg 3 or 4 times daily) with or without probenecid 500 mg ...19921379147
immobilized ph gradient isoelectric focusing and immunoblotting for investigations of anti-borrelia burgdorferi igg antibodies.anti-borrelia burgdorferi immunoglobulin g (igg) responses in cerebrospinal fluid, serum, and joint fluid from lyme disease patients were investigated by immobilized ph gradient (ipg) isoelectric focusing (ief) in ph 4-10 and ph 4-7 gels. after focusing, the anti-b.-burgdorferi antibodies were blotted by affinity-driven transfer to antigen-coated polyvinylidene difluoride membranes (immunoblot) and the igg antibodies were immunoenzymatically stained. ipg-ief gels gave an excellent resolution of ...19921378387
mapping the major antigenic domains of the native flagellar antigen of borrelia burgdorferi.purified flagellar protein (p41) of borrelia burgdorferi (strain b31) was subjected to chemical cleavage with hydroxylamine or proteolysis with v8 protease, endoproteinase asp-n, or alpha-chymotrypsin. the resulting polypeptides were identified by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and their positions in the published dna sequence of the p41 protein were determined by amino-terminal sequencing and amino acid analysis. epitope specificities of antibody binding by a monoclo ...19921378061
immunoregulatory effects of borrelia burgdorferi on t-b cell interactions.late stages of lyme borreliosis are characterized by a disproportionate inflammatory response presumably elicited by only minute amounts of persisting antigen. to explore the possibility that amplification mechanisms of the immune response shape disease manifestations, we studied immunoregulatory properties of borrelia burgdorferi antigens and analyzed whether they influence b cell-t cell cooperation. b. burgdorferi was found to induce peripheral resting b cells to function as effective antigen ...19921375647
specific immunofluorescent staining of pathogenic treponemes with a monoclonal antibody.two hybrid cell lines which produced mouse monoclonal antibody to the dal-1 street strain of treponema pallidum subsp. pallidum were established. these monoclonal antibodies strongly reacted with t. pallidum subsp. pallidum (nichols strain, dal-1, and two other street strains, strains mn-1 and mn-3) and t. pallidum subsp. pertenue by indirect microimmunofluorescent antibody and enzyme-linked immunosorbent assay techniques, but they did not react with normal rabbit testicular tissue. these monocl ...19921374079
prospective evaluation of heart block complicating early lyme disease.lyme disease is a recognized cause of heart block/carditis. the incidence of heart block complicating early lyme disease has not been prospectively evaluated. in this study, 61 patients with early lyme disease documented by the rash of erythema migrans were prospectively evaluated for carditis. fifty five of 61 patients had a repeat examination 3 to 4 weeks after initiation of antibiotic therapy. only one of 61 patients (1.6%) presented with heart block, which resolved with antibiotics. none of ...19921372717
characterization of antigenic determinants of borrelia burgdorferi shared by other bacteria.three antigenic determinants of borrelia burgdorferi that were shared with other spirochetes and gram-negative bacterial species, as measured by western blot, elisa, or both, were identified and characterized using monoclonal antibodies (mabs). two were associated with immunogenic integral membrane lipoproteins of 19- and 22-kda, respectively, by [3h]palmitate incorporation and triton x-114 phase partitioning. a third antigenic determinant was shown to be associated with a 72-kda heat shock prot ...19921372635
species-specific identification of and distinction between borrelia burgdorferi genomic groups by using 16s rrna-directed oligonucleotide probes.examination of a number of previously published aligned borrelia 16s rrna sequences revealed the presence of regions which could serve as oligonucleotide probe targets for both species-specific identification of borrelia burgdorferi and distinction between genomic groups. total cellular rna isolated from borrelia cultures was used in slot blot analysis. radiolabeled oligonucleotides designed to hybridize to specific 16s rrna targets were used as probes. these probes allowed for both species-spec ...19921372620
identification of an endoflagellar associated protein in borrelia burgdorferi.dna of borrelia burgdorferi was cleaved by the endonuclease ecori and ligated with the bacteriophage expression vector lambda gt11. after infection of the escherichia coli strain y1089, the plaques of recombinant phages were screened with a b. burgdorferi antiserum (human) for fusion proteins containing borrelia antigen.s a positive clone produced a hybrid protein (p200) of c. 200 kda. the corresponding native borrelia protein (p97) was identified as having an mr of 97 kda. to localise protein p ...19921372363
phylogenetic analysis of the genus borrelia: a comparison of north american and european isolates of borrelia burgdorferi.we have sequenced the 16s rrna molecules from four species of borrelia and from six isolates of borrelia burgdorferi via the reverse transcriptase primer extension method. the sequences were aligned and evolutionary relationships were determined, including the calculation of evolutionary distances and the construction of a phylogenetic tree. these analyses demonstrate significant divergence among b. burgdorferi isolates, with the european isolates g1 and g2 residing most distant from the main cl ...19921370282
prognostic b-cell epitopes on the flagellar protein of borrelia burgdorferi.overlapping decapeptides based on the flagellin sequence of borrelia burgdorferi b31 (g. s. gassmann, m. kramer, u. b. göbel, and r. wallich, nucleic acids res. 17:3590, 1989) were used to identify immunologically reactive regions of flagellin. five serum specimens from patients with late manifestations of lyme disease and borrelia-specific monoclonal antibody h9724 reacted with an epitope in the central region of the flagellar protein (amino acids 205 to 226), which is heterologous to the amino ...19921370277
epitopes on the outer surface protein a of borrelia burgdorferi recognized by antibodies and t cells of patients with lyme disease.we have characterized immunogenic epitopes of the 31-kda outer surface protein a (ospa) protein of borrelia burgdorferi, which is a major surface ag of the spirochete causing lyme disease. full length and truncated forms of rospa proteins were expressed in escherichia coli, and their reactivities with antibodies and human t cell clones isolated from patients with lyme disease were determined. the epitopes recognized by three of four ospa-reactive t cell clones are contained within the 60 cooh-te ...19921370170
biological and social determinants of the lyme disease problem.lyme disease, presently the most common arthropod-borne disease in the united states, is a phenomenon of both medical and social importance. notwithstanding the substantial public health threat posed by borrelia burgdorferi infection, there is reason to suspect that the diagnosis of lyme disease is made more frequently than justified. on the other hand, the current dissatisfaction with serologic assays for b. burgdorferi infection may lead some physicians to inappropriately abandon consideration ...19921365529
genome structure of spirochetes.the genome structures of several pathogenic spirochetes have recently been determined. the genomes of borrelia species consist of a linear chromosome of approximately one million base pairs (mb) and various linear and circular plasmids. analysis of restriction fragment length polymorphisms and 16s ribosomal rna sequence data indicate the division of borrelia burgdorferi into at least three distinct genetic groups. leptospira interrogans has a circular chromosome 5 mb in size and a 0.35 mb extrac ...19921362002
borrelia burgdorferi and shulman syndrome. 19921360588
lyme disease during pregnancy. acog committee opinion: committee on obstetrics: maternal and fetal medicine. number 99--november 1991. 19921358705
roxithromycin in lyme borreliosis: discrepant results of an in vitro and in vivo animal susceptibility study and a clinical trial in patients with erythema migrans.a new semisynthetic macrolide roxithromycin was evaluated for its potential use in the treatment of lyme borreliosis. using a macro-dilution broth technique, borrelia burgdorferi was shown to be susceptible to roxithromycin with a minimal bactericidal concentration (mbc) of 0.06-0.25 microgram/ml. a systemic b. burgdorferi infection was established in gerbils; a dosage of greater than or equal to 25 mg/kg/day roxithromycin for 10 days eliminated the infection. a single blind, randomized multicen ...19921357894
early antimicrobial treatment of dilated cardiomyopathy associated with borrelia burgdorferi. 19921357392
evaluation of genetic divergence among borrelia burgdorferi isolates by use of ospa, fla, hsp60, and hsp70 gene probes.in order to assess the genetic variation of immunologically relevant structures among isolates of the lyme disease spirochete, borrelia burgdorferi, three chromosomal genes encoding flagellin (fla) and the heat shock proteins hsp60 and hsp70, as well as the plasmid gene encoding outer surface protein a (ospa), from 55 different european and north american strains obtained from ticks and mammal hosts have been investigated by restriction fragment length polymorphisms (rflps). rflps of fla and the ...19921356932
clinical outcome of borrelia burgdorferi related dilated cardiomyopathy after antibiotic treatment. 19921353241
rrna gene organization in the lyme disease spirochete, borrelia burgdorferi.lyme disease is the most common vector-borne disease in the united states. the causative agent is the spirochete borrelia burgdorferi. the copy number and organization of the genes encoding the rrnas of this organism were determined. there is a single gene for 16s rrna and two copies each of the 23s rrna and 5s rrna genes. all of the genes are located within a chromosomal fragment of approximately 9.5 to 10.0 kb. the 23s and 5s rrna genes are tandemly duplicated in the order 23s-5s-23s-5s and ar ...19921350586
reversal by ceftriaxone of dilated cardiomyopathy borrelia burgdorferi infection. 19921349399
[encephalitis. recent clinical, diagnostic and therapeutic aspects].the subjects of this paper are mainly the encephalitis of viral origin and in addition 3 types of non-viral encephalitis of practical importance. a review is given on the current diagnostic possibilities including; clinical criteria; examination of the cerebrospinal fluid; neuroradiology and; etiological investigation by means of direct identification of the microbes in the cerebrospinal fluid or by measuring intrathecally produced antibodies. after some general statements concerning treatment t ...19921348844
neurological complications of lyme borreliosis.lyme disease, like syphilis, a spirochetal infection, can appear with exacerbations and remissions in different stages. the clinical picture is marked by dermatological, neurological, rheumatic and cardiological complications. pns complications appear in the second and third stage. tick bite meningoradiculoneuritis neuritis (garin-bujadoux-bannwarth-syndrome), characterized by painful asymmetrical sensory and motor dysfunctions and inflamed csf, is a typical manifestation of the second stage. mo ...19921345745
[clinical manifestations of lyme disease]. 20111344869
[incidence of skin manifestations of lyme disease in croatia].in the study, the most relevant historical data concerning lyme-borreliosis are shortly reviewed. the most frequent skin manifestations, i.e. erythema cronicum migrans (ecm), lymphocytoma cutis (lcc) and acrodermatitis chronica atrophicans (aca) are described. the clinical course of lyme disease and the chronologic review of the most significant data on the disease are given. the frequency of skin manifestations of lyme-borreliosis in various areas of croatia from 1988 to 1989 based on the repor ...19921343019
[epidemiological study of lyme disease in brazil].lyme disease is a tick-born infection first reported in united states of america in 1977 by allen c. steere. it occurred in the state of connecticut; other cases have been discovered in others states of usa and also in other countries (canada, soviet union, japan, china, australia). this disease has not been reported in south america yet. in order to investigate this disease in brasil, a multi-disciplinary group including microbiologists, entomologists and clinicians was created at the universit ...19921340016
antibody-resistant mutants of borrelia burgdorferi: in vitro selection and characterization.we used polyclonal antisera and monoclonal antibodies (mabs) to inhibit the growth of clonal populations of two strains of borrelia burgdorferi, the lyme disease agent, and thereby select for antibody-resistant mutants. mabs were directed at the outer membrane proteins, ospa or ospb. mutants resistant to the growth-inhibiting properties of the antibodies were present in the populations at frequencies ranging from 10(-5) to 10(-2). the several escape variants that were examined were of four class ...19921339462
national survey of state epidemiologists to determine the status of lyme disease surveillance.in 1990, the council of state and territorial epidemiologists and the centers for disease control made lyme disease (ld) nationally notifiable and developed a national case definition. state epidemiologists were surveyed about their state ld surveillance system. responses were received from all states and the district of columbia. as of november 1991, ld was notifiable in 45 states. a total of 44 of these 45 states use the 1990 national case definition for case confirmation. twenty-five state he ...20161333618
borrelia burgdorferi infection may be the cause of sarcoidosis.serum antibody to borrelia burgdorferi was measured in 33 patients with sarcoidosis which was confirmed clinically and pathologically. the results showed that 81.8% of the patients were positive for anti-b. burgdorferi antibody. in addition, a strain of b. burgdorferi was isolated from a patient's blood. fifteen patients received ceftriaxone 2g per day or penicillin 12 million u per day. the antibody titers of the patients decreased to nearly normal levels rapidly. serum angiotensin converting e ...19921333393
congenital infections and the nervous system.despite vaccines, new antimicrobials, and improved hygienic practices, congenital infections remain an important cause of death and long-term neurologic morbidity among infants world-wide. important agents include toxoplasma gondii, cytomegalovirus, treponema pallidum, herpes simplex virus types 1 and 2, and rubella virus. in addition, several other agents, such as the varicella zoster virus, human parvovirus b19, and borrelia burgdorferi, can potentially infect the fetus and cause adverse fetal ...19921321971
peripheral facial palsy caused by borrelia burgdorferi and viruses in south-western finland.in a prospective study from 1983 through 1984, 77 patients (31 men and 46 women with a mean age of 47 +/- 20 years) with peripheral facial palsy of primarily unknown etiology were investigated. only 2 patients with acute otitis media received antibiotics. serology of the patients was investigated on days 1 and 14. igg and igm antibodies against herpes simplex, varicella-zoster and cytomegalovirus were determined by enzyme immunoassay, and against epstein-barr virus by immunofluorescence. in a re ...19921321549
[lyme borreliosis: significance of the serological diagnosis of an infection with borrelia burgdorferi in neurological diseases with inflammatory cerebrospinal fluid syndrome].to look for a correlation between positive antibody-response against borrelia burgdorferi (bb) and an inflammatory csf-syndrome, from may 1988 to may 1989 333 patients from the neurological department of the university of bern underwent lumbar puncture with cell count, quantitative and qualitative protein analysis and antibody determination against bb in serum and csf. 6 patients with active syphilis were excluded. the results of the 333 remaining patients were analyzed using chi 2 or fisher's e ...19921321489
treatment of early lyme disease.to compare the safety and efficacy of azithromycin, amoxicillin/probenecid, and doxycycline for the treatment of early lyme disease, to identify risk factors for treatment failure, and to describe the serologic response in treated patients.19921313637
clinical and electrophysiologic findings in chronic neuropathy of lyme disease.we evaluated 25 patients with lyme disease and chronic peripheral neuropathy. all had immunologic evidence of exposure to borrelia burgdorferi and no other identifiable cause of neuropathy. neuropathic symptoms began a median of 8 months (range, 0 to 165) after erythema migrans and had been present for a median of 12 months (range, 2 to 168) prior to evaluation. twelve patients (48%) had generally symmetric distal, nonpainful paresthesia, and another 12 (48%) had generally asymmetric radicular p ...19921310529
examination of koch's postulates for borrelia burgdorferi as the causative agent of limb/joint dysfunction in dogs with borreliosis.borrelia burgdorferi has been implicated as the causative agent of borreliosis in dogs, which is characteristically a limb/joint disorder, but can be associated with multiple-organ dysfunction. attempts to reproduce this disease by inoculating dogs with b burgdorferi have not been successful. in the study of this report, b burgdorferi from ixodes dammini ticks was used to induce signs of limb/joint dysfunction, fever, anorexia, depression, and systemic infection in dogs. a pure culture of this b ...19921307866
[comparable evaluation of serological diagnostic tests (elisa, ifa and pa methods) for the detection of anti-borrelia burgdorferi antibody].we have evaluated the usefulness of the enzyme-linked immunosorbent assay (elisa), indirect fluorescent antibody assay (ifa) and particle agglutination (pa) method as serological screening tests for lyme-borreliosis. serum samples obtained from two patients with lyme-borreliosis showed marked high antibody titers for borrelia burgdorferi when measured by these methods. of the serum of 368 healthy members of the self-defense force in north-eastern japan screened for the antibody to b. burgdorferi ...19921307628
[endemic occurrence of lyme disease in the forested areas of the piła district].lyme disease (l.d.) caused by borrelia burgdorferi and spread by ixodes ticks arouses great interest with more and more clinicians and other scientists. it may be very difficult to diagnose a disease as l.d. because of its various clinical symptoms expressions. this is why it is often called "the great imitator". there are three phases in the natural history of the disease. diagnostic problems come from the fact that early phases are often lacking. the disease may begin with any symptom of any s ...19921305782
inflammatory signs, antibody response and antigen detection in cerebrospinal fluid over the course of neuroborreliosis.csf and serum specimens were consecutively obtained from three patients with neuroborreliosis (stage i, ii and iii), csf protein content, cell counts and differential, igg index, oligoclonal bands and anti-b. burgdorferi antibodies were measured. cerebrospinal fluid (csf) was tested for borrelia-dna being present prior to and after antibiotic treatment. while dna could be identified before ceftriaxone was administered, there were no more amplification products afterwards. the goal of this study ...19921303694
prevalence of antibodies to borrelia burgdorferi in serum and cerebrospinal fluid samples from patients with neurological disorders in berlin.paired serum and cerebrospinal fluid (csf) samples from 800 patients of a neurological department were tested for antibodies to borrelia burgdorferi. a flagellum enzyme-linked immunosorbent assay was used for antibody screening. all serum/csf pairs with any elevated antibody response were also tested by western blotting a method for confirmation. 65 patients (8.1%) had serum igg antibodies in elisa and 22 of these patients (2.8%) were confirmed by western blot. 20 patients (2.5%) had elevated an ...19921303693
[investigation of rodents and ixodes for lyme disease and four strains of borrelia burgdorferi first isolated from ixodes granulatus supino, rattus confucianus and r. norvegicus in fujian province].with bsk ii medium, 4 strains of borrelia burgdorferi was isolated from ixodes granulatus supino, rattus confucianus and r, novregicus, which ixodes and ruttus all captured from forest areas in northern of fujian province where have found lyme cases. these isolated strains were identified by institute of epidemiology and microbiology, chinese academy of preventive medicine.19921301268
[survey on tick vectors of lyme disease spirochetes in china].since 1987 we have been studying on lyme disease in china. there were 71 isolates of borrelia burgdorferi recovered from six species of ticks including ixodes persulcatus, ixodes granulatus, ixodes rangtangensis, haemaphysalis concinna. haemaphysalis bispinosa and haemaphysalis longicornis, and 55 isolates from ixodes persulcatus collected from heilongjiang, jilin, liaoning, nei-monggol, hebei and xinjiang region (province). ixodes persulcarus is the dominant species accounted for more than 80% ...19921300244
prevention of lyme disease after tick bites. a cost-effectiveness analysis.in areas of endemic disease, the probability of lyme disease after a tick bite ranges from about 0.012 to 0.05. early treatment with oral antibiotics prevents most complications of lyme disease, but antibiotics are generally not prescribed until rash or other symptoms develop.19921298217
murine lyme borreliosis: route of inoculation determines immune response and infectivity.outer surface protein a ospa is the major outer surface protein of b. burgdorferi, the causative agent of lyme disease, and has been advocated as a vaccine candidate. it is recognized late or not at all in the course of human lyme disease, but has been identified as a major antigenic epitope for the anti-spirochetal immune response in a number of experimental models of b. burgdorferi infection. we injected b.burgdorferi into mice and tested the appearance of immunoreactivity to ospa by western b ...19921297405
active immunization with pc protein of borrelia burgdorferi protects gerbils against b. burgdorferi infection.serious infection due to borrelia burgdorferi and the disseminated infection characteristic of the disease possess unique treatment problems. the wide and still increasing incidence of lyme borreliosis as well as the problems in treatment call for effective prevention strategies by active immunization. vaccination experiments were done to determine if active immunization of gerbils with recombinant ospa and pc protects against infection with strains of b. burgdorferi. gerbils were vaccinated wit ...19921293055
lyme disease in clinical practice. 19921292852
prevalence of serum specific antibodies to borrelia burgdorferi antigens in persons from region of high risk of tick bites. 19921292851
[lyme disease].after a short historical review of the lyme disease, the author describes the responsible bacteria, a spirochete called borrelia. epidemiology, physiopathology and clinical manifestations are studied, as well as the different phases of the disease (primary secondary and tertiary) and the various possible symptoms (dermatological, cardiovascular, rheumatical, neurological syndrome). the biological part includes isolation of the bacteria and detection of antibodies (ifi, elisa, passive hemagglutin ...19921290383
questions "push" for vaccination against borrelia burgdorferi infection. 19921289318
questionnaire surveys of cases of tick bite and lyme borreliosis in hunters in hokkaido with reference to detection of anti-borrelia burgdorferi antibody.an epidemic of lyme borreliosis on hokkaido island, japan, was surveyed by questionnaire in 587 hunters. the 308 returns (52.4%) revealed episodes of tick bite (usually 2 or more) in 210 cases. skin rashes appeared in 164 cases. associated itching, pain, etc., but not skin rash, were more frequent after 2 or more tick bite. previous determinations of anti-borrelia burgdorferi antibody titers in these subjects and in controls suggested an association with outdoor activities other than hunting, an ...19921286220
[infections with borrelia burgdorferi in würzburg blood donors: antibody prevalence, clinical aspects and pathogen detection in antibody positive donors].the prevalence of antibodies against borrelia burgdorferi, the etiologic agent of lyme borreliosis, was determined in a group of blood donors from the würzburg area (southern germany). 26 of 472 donors (5.5%) tested positive in a hemagglutination test. when performing immunoblots only 13 donors (2.7%) gave rise to b. burgdorferi-specific antibodies. 9 of them were examined in more detail by anamnesis, physical examination, determination of inflammation parameters of the blood and polymerase chai ...19921284778
[prevalence of borrelia burgdorferi antibodies in hamburg blood donors].one thousand regular blood donors of the department of transfusion medicine at the university hospital in hamburg were screened for antibodies against the lyme disease spirochete, b. burgdorferi. 7.2% were initially reactive in the enzyme immunoassay, 37.5% of which were confirmed by immunoblot. the seroprevalence of anti-b. burgdorferi antibodies thus is 2.7% in hamburg blood donors. 25 of 27 positive donors received a physical exam, which did not reveal any symptoms of acute or chronic lyme di ...19921284777
comparison of borrelia burgdorferi isolated from humans and ixodid ticks in hokkaido, japan.four spirochetal isolates (jem1 to jem4) were obtained from cutaneous lesions of patients manifesting erythema chronicum migrans in hokkaido, japan. in the protein profiles by sds-page and the reactivities with monoclonal antibodies (h5332 and h9724) by immunoblotting, all the human isolates were identical with the tick isolates from ixodes persulcatus. these data indicate that i. persulcatus is an important vector of lyme disease for humans in japan.19921283437
comparison of whole-cell antibodies and an antigenic flagellar epitope of borrelia burgdorferi in serologic tests for diagnosis of lyme borreliosis.a recombinant protein (p41-g) of an antigenic region of flagellin was used in a standard and amplified enzyme-linked immunosorbent assay (elisa) to detect antibodies to borrelia burgdorferi, the causative agent of lyme borreliosis. comparable sensitivities (88 to 94%) were noted when sera from 17 persons who had erythema migrans and antibodies to whole-cell b. burgdorferi were tested against the p41-g antigen. in tests of a second study group of 36 persons who had erythema migrans but no detecta ...19921280650
development of polymerase chain reaction primer sets for diagnosis of lyme disease and for species-specific identification of lyme disease isolates by 16s rrna signature nucleotide analysis.we have determined and compared partial 16s rrna sequences from 23 lyme disease spirochete isolates and aligned these with 8 sequences previously presented. the 16s rrna signature nucleotide compositions were defined for each isolate and compared with the genomic species signature nucleotide sets previously established. to identify positions truly indicative of species classification which could serve as targets for polymerase chain reaction species-specific identification primers, 16s rrna-base ...19921280643
azithromycin. a review of its antimicrobial activity, pharmacokinetic properties and clinical efficacy.azithromycin is an acid stable orally administered macrolide antimicrobial drug, structurally related to erythromycin, with a similar spectrum of antimicrobial activity. azithromycin is marginally less active than erythromycin in vitro against gram-positive organisms, although this is of doubtful clinical significance as susceptibility concentrations fall within the range of achievable tissue azithromycin concentrations. in contrast, azithromycin appears to be more active than erythromycin again ...19921280567
characterization of borrelia burgdorferi isolated from ixodes persulcatus and ixodes ovatus ticks in japan.the lyme disease spirochete borrelia burgdorferi was detected in the adult stage of the ixodid ticks ixodes persulcatus and i. ovatus collected in various localities in japan. the total prevalence values were 16.6% of 777 i. persulcatus and 23.6% of 687 i. ovatus. sixty-two (63.9%) of 97 isolates from i. persulcatus contained the 30-34-kd heterogeneous outer surface protein a (ospa) that reacted with monoclonal antibody h5332. in contrast, all 128 isolates from i. ovatus were homogeneous with re ...19921279996
molecular analysis of the outer surface protein a (ospa) of borrelia burgdorferi for conserved and variable antibody binding domains.the outer surface protein a (ospa) of borrelia burgdorferi is a major candidate for development of a borrelia vaccine. however, vaccine development may be aggravated by the immunological heterogeneity of ospa. in this respect the knowledge about conserved and variable epitopes is of major interest. in this study truncated proteins derived from two different ospa serotypes of b. burgdorferi were mapped for conserved and specific antibody-binding domains. the ospa fragments were reacted in the wes ...19921279368
cases of lyme disease in the united states: locations correlated with distribution of ixodes dammini.lyme disease, defined by erythema chronicum migrans and sometimes followed by neurologic, cardiac, or joint involvement, is known to have affected 512 patients in the united states. the disease seems to occur in three distinct foci: along the northeastern coast, in wisconsin, and in california and oregon, a distribution that correlates closely with that of ixodes dammini in the first two areas and with ixodes pacificus in the last. the implicated tick, saved by six patients in the northeast, was ...1979496106
neurologic abnormalities of lyme disease. 1979449663
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