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1.
Psychol Med ; 53(6): 2553-2562, 2023 04.
Article in English | MEDLINE | ID: mdl-35094717

ABSTRACT

BACKGROUND: Racial and ethnic groups in the USA differ in the prevalence of posttraumatic stress disorder (PTSD). Recent research however has not observed consistent racial/ethnic differences in posttraumatic stress in the early aftermath of trauma, suggesting that such differences in chronic PTSD rates may be related to differences in recovery over time. METHODS: As part of the multisite, longitudinal AURORA study, we investigated racial/ethnic differences in PTSD and related outcomes within 3 months after trauma. Participants (n = 930) were recruited from emergency departments across the USA and provided periodic (2 weeks, 8 weeks, and 3 months after trauma) self-report assessments of PTSD, depression, dissociation, anxiety, and resilience. Linear models were completed to investigate racial/ethnic differences in posttraumatic dysfunction with subsequent follow-up models assessing potential effects of prior life stressors. RESULTS: Racial/ethnic groups did not differ in symptoms over time; however, Black participants showed reduced posttraumatic depression and anxiety symptoms overall compared to Hispanic participants and White participants. Racial/ethnic differences were not attenuated after accounting for differences in sociodemographic factors. However, racial/ethnic differences in depression and anxiety were no longer significant after accounting for greater prior trauma exposure and childhood emotional abuse in White participants. CONCLUSIONS: The present findings suggest prior differences in previous trauma exposure partially mediate the observed racial/ethnic differences in posttraumatic depression and anxiety symptoms following a recent trauma. Our findings further demonstrate that racial/ethnic groups show similar rates of symptom recovery over time. Future work utilizing longer time-scale data is needed to elucidate potential racial/ethnic differences in long-term symptom trajectories.


Subject(s)
Depression , Stress Disorders, Post-Traumatic , Humans , Child , Depression/psychology , Anxiety Disorders , Anxiety/epidemiology , Stress Disorders, Post-Traumatic/epidemiology , Stress Disorders, Post-Traumatic/diagnosis , Ethnicity/psychology
2.
J Med Imaging Radiat Sci ; 53(2): 256-263, 2022 06.
Article in English | MEDLINE | ID: mdl-35393257

ABSTRACT

INTRODUCTION: There is little research regarding patient engagement (PE) in Continuing Professional Development (CPD) programs in radiation oncology. This study aims to understand the barriers and enablers to PE in the design and implementation process of CPD programs, and advance PE in these programs moving forward. METHODS: This qualitative study involved 17 semi-structured interviews, with 5 cancer patients and 12 educators, conducted from June 2019 to April 2020. Interview data identified common themes, such as: the current state of PE in CPD programming, and key barriers and recommendations on how to engage patients in meaningful and practical ways. RESULTS: Six themes were identified related to PE: the concept of PE, ethical considerations, barriers, key considerations in planning resources, and the anticipated impact of PE on curriculum planning. CONCLUSION: Both patients and educators emphasized that creating and sustaining meaningful educator-patient relationships and giving patients an active and effective role in CPD planning would improve curriculum content. The University of Toronto Department of Radiation Oncology (UTDRO) should consider building this initiative into its strategic CPD priorities and ensure the appropriate infrastructure is in place.


Subject(s)
Radiation Oncology , Curriculum , Humans , Patient Participation , Qualitative Research
3.
Neuroscience ; 459: 118-128, 2021 04 01.
Article in English | MEDLINE | ID: mdl-33588003

ABSTRACT

The prefrontal cortex and limbic system are important components of the neural circuit that underlies stress and anxiety. These brain regions are connected by white matter tracts that support neural communication including the cingulum, uncinate fasciculus, and the fornix/stria-terminalis. Determining the relationship between stress reactivity and these white matter tracts may provide new insight into factors that underlie stress susceptibility and resilience. Therefore, the present study investigated sex differences in the relationship between stress reactivity and generalized fractional anisotropy (GFA) of the white matter tracts that link the prefrontal cortex and limbic system. Diffusion weighted images were collected and deterministic tractography was completed in 104 young adults (55 men, 49 women; mean age = 18.87 SEM = 0.08). Participants also completed self-report questionnaires (e.g., Trait Anxiety) and donated saliva (later assayed for cortisol) before, during, and after the Trier Social Stress Test. Results revealed that stress reactivity (area under the curve increase in cortisol) and GFA of the cingulum bundle varied by sex. Specifically, men demonstrated greater cortisol reactivity and greater GFA within the cingulum than women. Further, an interaction between sex, stress reactivity, and cingulum GFA was observed in which men demonstrated a positive relationship while women demonstrated a negative relationship between GFA and cortisol reactivity. Finally, trait anxiety was positively associated with the GFA of the fornix/stria terminalis - the white matter pathways that connect the hippocampus/amygdala to the hypothalamus. These findings advance our understanding of factors that underlie individual differences in stress reactivity.


Subject(s)
White Matter , Adolescent , Anxiety Disorders , Brain , Diffusion Tensor Imaging , Female , Humans , Male , Sex Characteristics , White Matter/diagnostic imaging , Young Adult
4.
Radiography (Lond) ; 25(3): 241-249, 2019 08.
Article in English | MEDLINE | ID: mdl-31301782

ABSTRACT

INTRODUCTION: This study assesses the feasibility of a new role for radiation therapists in Ontario, Canada, called the Advanced Practice Radiation Therapist (APRT), which would address health service pressures and improve patients' access to care. METHODS: A literature search and expert consensus were used to define advanced practice. A standardized template was used to record each APRTs activities/competencies, along with the requisite knowledge, skills and judgment required to perform these competencies. A thematic analysis of the lists was undertaken to develop a single competency profile. Seven APRTs were deployed at four cancer centres to gather contextual information on the development and integration of the new role. RESULTS: The definition of AP consists of seven key traits and includes a framework identifying stages of practice from entry-level practitioner through expert to advanced practitioner. The competency profile consists of clinical, technical and professional domains which further define the scope of practice and shepherd the role through stages of implementation. Role testing showed support for the role and demonstrated that APRTs can deliver specialized services, perform delegated tasks and their work can lead to program efficiencies and new services. The new role may also lead to improved radiation therapist recruitment rates and work satisfaction. CONCLUSIONS: This feasibility assessment served as the foundation for the future long-term implementation of the Clinical Specialist Radiation Therapist (CSRT) Project. As of 2018, there were 24 CSRTs in Ontario. The APRT role is a natural progression for a readying profession which can play a transformative role in addressing health human resource shortages.


Subject(s)
Clinical Competence/standards , Health Personnel/standards , Professional Practice/standards , Radiation Oncologists/standards , Cancer Care Facilities/organization & administration , Feasibility Studies , Health Personnel/organization & administration , Humans , Job Satisfaction , Neoplasms/radiotherapy , Ontario , Physician's Role , Radiation Oncologists/organization & administration , Specialization/standards
5.
Curr Oncol ; 25(6): e533-e538, 2018 12.
Article in English | MEDLINE | ID: mdl-30607120

ABSTRACT

Background: e-Learning is an underutilized tool in education for the health professions, and radiation medicine, given its reliance on technology for clinical practice, is well-suited to training simulation in online environments. The purpose of the present study was to evaluate the knowledge impact and user interface satisfaction of high-(hf) compared with low-fidelity (lf) e-learning modules (e-modules) in radiation oncology training. Methods: Two versions of an e-module on lung radiotherapy (lf and hf) were developed. Radiation oncology residents and fellows were invited to be randomized to complete either the lf or the hf module through individual online accounts over a 2-week period. A 25-item multiple-choice knowledge assessment was administered before and after module completion, and user interface satisfaction was measured using the Questionnaire for User Interaction Satisfaction (quis) tool. Results: Of 18 trainees, 8 were randomized to the lf module, and 10, to the hf module. Overall, knowledge assessment performance increased (11%, p < 0.05), with hf-group participants reporting a 13% improvement (p = 0.02), and senior participants reporting an almost 15% improvement (p < 0.01). Scores on the quis indicated that participants were satisfied with various aspects of the user interface. Conclusions: The hf e-module had a greater impact on knowledge acquisition, and users expressed satisfaction with the interface in both the hf and lf situations. The use of e-learning in a competency-based curriculum could have educational advantages; participants expressed benefits and drawbacks. Preferences for e-learning integration in education for the health professions should be explored further.


Subject(s)
Computer-Assisted Instruction , Internship and Residency , Learning , Personal Satisfaction , Radiation Oncology/education , Computer-Assisted Instruction/methods , Educational Measurement , Female , Humans , Male , Students, Medical
6.
Dalton Trans ; 40(26): 6893-900, 2011 Jul 14.
Article in English | MEDLINE | ID: mdl-21647494

ABSTRACT

Six lead xanthate adducts Pb(S(2)COR)(2).L [R = Et, (n)Bu, L = bipy, TMEDA (tetramethylethylenediamine), PMDETA (pentamethyldiethylenetriamine)] have been synthesised and the structures of all, save Pb(S(2)COBu(n))(2).TMEDA (4) which is an oil, determined. Pb(S(2)COEt)(2).TMEDA (3) is seven-coordinate at lead through three chelating ligands and one weak intermolecular Pb‥S interaction. Both Pb(S(2)COR)(2).bipy [R = Et (1), (n)Bu (2)] are dimers in which one xanthate is terminal and the other µ(2) bridging at each sulphur, generating an eight-coordinate lead when the bipy donor is included. Both Pb(S(2)COR)(2).PMDETA [R = Et (5), (n)Bu (6)] are seven-coordinate at lead by virtue of two bidentate chelating xanthate ligands and a tridentate PMDETA; there are no intermolecular interactions. Trends in the (207)Pb NMR chemical shifts mirror the changes in the intramolecular coordination number across the series. Pb(S(2)COEt)(2).TMEDA (3) has been used to deposit PbS films on glass, Mo-coated glass and Si by AACVD. Pb(S(2)COEt)(2) also generated PbS nanocubes when decomposed under an autogenerated pressure.

7.
Infect Immun ; 67(2): 968-71, 1999 Feb.
Article in English | MEDLINE | ID: mdl-9916117

ABSTRACT

Yersinia bercovieri, a recently identified Y. enterocolitica-like species, produces a heat-stable enterotoxin (designated YbST) which has biologic activity in infant mice and increases short circuit current in Ussing chambers. Although YbST has some properties in common with the heat-stable enterotoxins of Y. enterocolitica (YST I and YST II), it appears to be a novel toxin because (i) it was not neutralized by anti-YST I antiserum, (ii) YbST-neutralizing antiserum did not neutralize YST I, and (iii) Y. bercovieri strains did not hybridize with genetic probes for yst I, yst II, and other known enterotoxins.


Subject(s)
Bacterial Toxins/biosynthesis , Enterotoxins/biosynthesis , Yersinia/metabolism , Animals , Antibodies, Bacterial/immunology , Bacterial Toxins/genetics , Bacterial Toxins/immunology , DNA, Bacterial/analysis , Enterotoxins/genetics , Enterotoxins/immunology , Isoelectric Point , Mice , Molecular Weight , Neutralization Tests , Yersinia/genetics , Yersinia enterocolitica
8.
Can J Microbiol ; 44(4): 356-63, 1998 Apr.
Article in English | MEDLINE | ID: mdl-9674108

ABSTRACT

Two hundred and fourteen isolates of Salmonella typhi submitted to our laboratory between 1992 and 1996 were tested for susceptibility to 20 antimicrobial agents. Forty-eight of the 214 isolates (22.4%), recovered from individuals who had travelled in South Asia, were multiresistant. Forty-four of the 48 isolates were resistant to ampicillin, chloramphenicol, tetracycline, streptomycin, sulfamethoxazole, trimethoprim, cotrimoxazole, ticarcillin, and piperacillin; the other four isolates were resistant to four to six agents. Forty-two of the multiresistant isolates belonged to Vi phage type E1, two isolates from the Punjab State belonged to phage type A, another from the Punjab State belonged to phage type E3, one isolate from Pakistan belonged to type M1, and one isolate from India belonged to type J1. Plasmids from 45 of 48 isolates showed a temperature-sensitive mechanism of transfer to Escherichia coli K-12 strains, characteristic of H1 incompatibility group plasmids. The majority of plasmids had an estimated molecular weight of 120 MDa and encoded both citrate utilization and mercury resistance. Plasmids from three isolates had an estimated molecular weight of 112-115 MDa; one of these isolates encoded citrate utilization but not mercury resistance. Analysis of isolates by pulsed-field gel electrophoresis after digestion with XbaI and SpeI indicated that the majority of multiresistant isolates shared a common restriction profile, while four isolates had unique patterns.


Subject(s)
Drug Resistance, Multiple/genetics , Salmonella typhi/classification , Salmonella typhi/drug effects , Typhoid Fever/microbiology , Adolescent , Adult , Anti-Bacterial Agents/pharmacology , Asia/epidemiology , Bacterial Typing Techniques , Canada/epidemiology , Child , Child, Preschool , Citric Acid/metabolism , Conjugation, Genetic , DNA Fingerprinting , Drug Resistance, Microbial/genetics , Electrophoresis, Gel, Pulsed-Field , Humans , Infant , Mercury/pharmacology , Microbial Sensitivity Tests , Middle Aged , Plasmids/drug effects , Salmonella paratyphi A/classification , Salmonella paratyphi A/isolation & purification , Salmonella typhi/isolation & purification , Travel , Typhoid Fever/epidemiology
10.
J Infect Dis ; 176(5): 1269-76, 1997 Nov.
Article in English | MEDLINE | ID: mdl-9359728

ABSTRACT

Between 1991 and 1994, plasmid-mediated, tetracycline-resistant Neisseria gonorrhoeae (TRNG) increased from 61.8% to 85.96% of all resistant isolates in Ontario, Canada. Ninety-nine isolates with tetracycline MICs >32 mg/L were characterized by auxotype/serovar (A/S) class, plasmid profile, hybridization with eight tetracycline-resistant probes, and pulsed-field gel electrophoresis (PFGE) of genomic DNA after digestion with NheI and SpeI restriction endonucleases. A cluster of 82 isolates with penicillin MICs of 2-4 mg/L and tetracycline MICs of 128 mg/L (chromosomally mediated resistance) belonged to A/S class NR/IB-1 and had identical or closely related PFGE profiles. Seventeen isolates, TRNG (10) and penicillinase-producing TRNG (7), with tetracycline MICs of 64-256 mg/L, belonged to eight A/S classes and displayed 12 different PFGE profiles. The 99 isolates hybridized only with the TetM probe. Phenotypic and molecular characterization indicated a diverse population throughout the Province of Ontario.


Subject(s)
Chromosomes, Bacterial , Neisseria gonorrhoeae/drug effects , Penicillin Resistance , Plasmids , Tetracycline Resistance , Electrophoresis, Gel, Pulsed-Field , Humans , Microbial Sensitivity Tests
12.
J Med Microbiol ; 46(5): 383-90, 1997 May.
Article in English | MEDLINE | ID: mdl-9152033

ABSTRACT

The incidence of Neisseria gonorrhoeae with reduced susceptibility to quinolones increased from 0.18% (63 of 3285) in 1992 to 0.56% (15 of 2663) in 1993 and 0.62% (46 of 2846) in 1994. In all, 65 of the 67 isolates of Neisseria gonorrhoeae with decreased susceptibility to quinolones were characterised by pulsed-field gel electrophoresis (PFGE), auxotyping, serotyping and plasmid content. The strains were distributed among 14 auxotype/serovar (A/S) classes. Thirty isolates (46.2%) which were penicillin-susceptible with ciprofloxacin MIC90 of 0.12 mg/L and norfloxacin MIC90 of 1.0 mg/L belonged to a single A/S class, OUHL/IA-2. All but two of the 30 isolates had identical PFGE restriction profiles with NheI restriction endonuclease. Fifteen isolates (23.1%) with MICs in the intermediate (or resistant) categories for penicillin and with ciprofloxacin and norfloxacin MIC90 of 0.25 and 4.0 mg/L and (0.5 and 4.0 mg/L) respectively, belonged to A/S class P/IB-1. The 15 isolates showed nine different patterns with NheI and eight patterns with SpeI restriction endonucleases. Two of three beta-lactamase-producing (PPNG) isolates belonged to A/S class P/IB-5 and had a dissimilar PFGE restriction profile with NheI endonuclease; the other isolate belonged to A/S class P/IB-8. The remaining 17 isolates were distributed among 11 A/S classes. Three isolates within the common A/S class NR/IB-1 were subdivided into two types by PFGE as were three isolates belonging to A/S class NR/IB-2. Overall the 65 isolates of N. gonorrhoeae were distributed into 30 NheI and 26 SpeI macrorestriction profiles. All but one isolate harboured the 2.6-MDa cryptic plasmid and 18 isolates carried the 24.5-MDa transferable plasmid. The three PPNG isolates carried the 4.5-MDa Asian beta-lactamase-producing plasmid and a 25.2-MDa conjugative plasmid was found in the two TRNG isolates.


Subject(s)
Anti-Infective Agents/pharmacology , Gonorrhea/microbiology , Neisseria gonorrhoeae/drug effects , 4-Quinolones , Bacterial Typing Techniques , DNA, Bacterial/analysis , Electrophoresis, Gel, Pulsed-Field , Gonorrhea/epidemiology , Humans , Incidence , Microbial Sensitivity Tests , Neisseria gonorrhoeae/classification , Ontario/epidemiology , Plasmids , Restriction Mapping , Serotyping
13.
Epidemiol Infect ; 117(1): 59-67, 1996 Aug.
Article in English | MEDLINE | ID: mdl-8760951

ABSTRACT

A multiplex polymerase chain reaction (PCR) was developed to detect the presence of the ail, yst, and virF genes of Yersinia enterocolitica simultaneously, quickly and accurately. The amplified fragment sizes were 356 base-pairs (bp) for the ail gene, 134 bp for the yst gene, and 231 bp for the virF gene. The specificity of the amplified products was confirmed by hybridization with digoxigenin-labelled oligonucleotide probes. Amplification was successful whether the template was derived from a single colony of bacteria, aliquots of boiled bacterial suspensions, from DNA extracted from pure or mixed cultures or from stool specimens. Amplification of the virF gene was also achieved from strains of Y. pseudotuberculosis carrying the 70 kb plasmid but not with preparations from other related Yersinia species or from other members of the family Enterobacteriaceae. The detection limit we established was 5-10 colony forming units per millilitre (cfu/ml) and 1.0 pg of DNA.


Subject(s)
Polymerase Chain Reaction/methods , Yersinia enterocolitica/isolation & purification , Animals , Base Sequence , DNA, Bacterial/isolation & purification , Feces/microbiology , Humans , Molecular Sequence Data , Reproducibility of Results , Sensitivity and Specificity , Virulence/genetics , Yersinia enterocolitica/genetics , Yersinia enterocolitica/pathogenicity
14.
Diagn Microbiol Infect Dis ; 24(4): 173-8, 1996 Apr.
Article in English | MEDLINE | ID: mdl-8831030

ABSTRACT

A hydrogen-sulfide producing, citrate-positive strain of Escherichia coli isolated from urinary tract infection was found to be resistant to chloramphenicol (Cm), tetracycline (Tc), streptomycin (Sm), trimethoprim (Tmp), sulfamethoxazole (Smx), and cotrimoxazole (Tmp/Smx). The strain contained 7 plasmids of molecular sizes 120, 35, 5.0, 3.2, 3.0, 2.6, and 2.4 megadaltons (Md), as detected by agarose gel electrophoresis of plasmid DNA. Thermosensitive transfer of Cm, Tc, and citrate utilization occurred conjugally to E. coli K-12 recipient strains at a frequency of approximately 10(-6) per donor cell after an 18 hour incubation. The transconjugants were also resistant to Sm and Smx and produced hydrogen-sulfide. Two plasmids of about 120 Md, pNH222, and 35 Md, pNH223, were detected in these transconjugants. Transformation or 1-hour conjugal transfer experiments at 26 degrees C with selection for Cm or Tc yielded only the 120 Md species. Plasmid pNH222 showed one way incompatibility with F plasmids, a characteristic shown previously to be typical of Inc HI1 plasmids. Transformation experiments with selection for Sm yielded transformants with one plasmid species, (pNH223), 35 Md in size, which carried the gene(s) for H2S production but not for raffinose fermentation. The fact that characteristics such as citrate utilization and hydrogen sulfide production, used in the identification of enteric bacteria, can be transmitted to E. coli by plasmids is of important taxonomic significance.


Subject(s)
Chloramphenicol Resistance/genetics , Conjugation, Genetic , Drug Resistance, Microbial/genetics , Escherichia coli/drug effects , Escherichia coli/genetics , Tetracycline Resistance/genetics , Transformation, Bacterial , Trimethoprim Resistance/genetics , Anti-Bacterial Agents/pharmacology , Anti-Infective Agents, Urinary/pharmacology , Chloramphenicol/pharmacology , Citric Acid/metabolism , Hydrogen Sulfide/metabolism , Plasmids , Streptomycin/pharmacology , Sulfamethoxazole/pharmacology , Tetracycline/pharmacology , Trimethoprim/pharmacology , Trimethoprim, Sulfamethoxazole Drug Combination/pharmacology
18.
J Neurosci Nurs ; 26(2): 121-3, 1994 Apr.
Article in English | MEDLINE | ID: mdl-8077774

ABSTRACT

Our experience of collaborative research "the process of working with others in pursuit of scientific discovery" has been a most rewarding experience. The nurses and physicians have developed mutual respect and appreciation of the value of each other's practice, and true collaboration has emerged. The relationships between the nurses and physicians have developed over time and have been supported by our visionary Associate Director for Nursing, Kathryn McKeon. Throughout this process of collaboration, we've grown to appreciate each others strengths and recognize what each discipline has to offer. We have also learned that when we work together, it is the patient who ultimately benefits most. The neurologists' holistic approach to patient care and their respect for nursing practice have greatly contributed to the establishment of truly collaborative research.


Subject(s)
Clinical Trials as Topic , Gaucher Disease/therapy , Interprofessional Relations , Neurosciences , Patient Care Team/organization & administration , Gaucher Disease/psychology , Humans , Nurses/psychology , Physicians/psychology
19.
J Neurosci Nurs ; 25(5): 296-301, 1993 Oct.
Article in English | MEDLINE | ID: mdl-8270810

ABSTRACT

Symptomatic responses to enzyme replacement therapy were studied in 12 patients with an inherited lipid storage disorder (Type 1 Gaucher's disease) in order to determine the impact of treatment on perceptions of well being. Before each intravenous infusion of enzyme, patients were asked to comment on the presence or absence of disease-specific symptoms presented in questionnaire format. Symptoms were grouped into five major categories: bleeding abnormalities, chronic fatigue, gastrointestinal complaints, bone pain and psychosocial function. Each reported symptom was discussed in detail with the clinic nurse coordinator and documented in the medical record. After six months of enzyme replacement therapy, each patient's chart was reviewed and changes in the frequency of disease-specific symptoms over time were evaluated. The major subjective changes included a decrease in the frequency and severity of nosebleeds, reduced bruising, increased vigor and energy level, visible reduction in abdominal girth, increased self-esteem and enhanced self-image. Patients frequently described relief of their symptoms well before changes were confirmed by objective laboratory measurements. These observations may prove useful in the comprehensive management of patients with Gaucher's disease as they recover from a chronic, debilitating illness while receiving enzyme replacement therapy. The extent and ease with which these patients can achieve a state of normal, healthy function is unknown at the present time and will require further study.


Subject(s)
Gaucher Disease/nursing , Glucosylceramidase/administration & dosage , Nursing Assessment , Sick Role , Activities of Daily Living/classification , Adaptation, Psychological , Adolescent , Child , Female , Follow-Up Studies , Gaucher Disease/psychology , Humans , Male , Pain Measurement , Quality of Life
20.
Epidemiol Infect ; 109(3): 463-72, 1992 Dec.
Article in English | MEDLINE | ID: mdl-1468530

ABSTRACT

A total of 598 isolates of Shigella species (24 S. dysenteriae, 254 S. flexneri, 30 S. boydii, 290 S. sonnei) submitted to the Ontario Public Health Laboratories in 1990 were tested for their susceptibility to 14 antimicrobial agents by the agar dilution method. Overall 79.6% of isolates were resistant to one or more antimicrobial agents and 52.0% were resistant to four or more. Trimethoprim resistance ranged from 26.7% among isolates of S. boydii to 39.4% among S. flexneri strains. The majority of the 224 TMP resistant isolates (88.8%) demonstrated high level resistance (MIC > 1000 mg/l) to trimethoprim. Resistance to cotrimoxazole increased from 3% in 1978 to between 26.7 and 37.6% in 1990. MICs for 90% of isolates (MIC90s) for ampicillin, ticarcillin and piperacillin were 128 to > 256 mg/l, > 256 for tetracycline and chloramphenicol, and > 2.0/38.0 for cotrimoxazole. These results from the Canadian Province of Ontario emphasize the need for prudent use of antimicrobial agents in the treatment of shigellosis.


Subject(s)
Drug Resistance, Microbial , Shigella/drug effects , Trimethoprim Resistance , Humans , Microbial Sensitivity Tests , Ontario , Trimethoprim, Sulfamethoxazole Drug Combination/pharmacology
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