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1.
Nurs Outlook ; 71(2): 101913, 2023.
Article in English | MEDLINE | ID: mdl-36690528

ABSTRACT

BACKGROUND: The United States continues to be plagued with pervasive health disparities. Leading health and professional organizations acknowledge structural racism as a contributing factor for the lack of a racially diverse nursing workforce particularly those serving in leadership roles which could help to mitigate health disparities among historically stigmatized populations. PURPOSE: Purpose Lack of funding for Historically Black Colleges and Universities (HBCUs) and lack of meaningful partnerships, stymie efforts that can be made by nursing programs at HBCUs. DISCUSSION: Discussion This position paper examines collaborative actions that can address upstream factors that perpetuate healthcare disparities through deep engagement between the policymakers, professional associations, industry, and educational institutions. METHODS: Faculty representing HBCU's and predominately White institutions, professional organizations, and staff met via videoconference to refine the focus of the paper, determine topic areas for writing teams, and refine details which occurred during weekly meetings. CONCLUSION: To disengage from structural racism, three critical recommendations are amplified with associated examples.


Subject(s)
Health Equity , Racism , United States , Humans , Black or African American , Universities , Systemic Racism , Faculty , Racism/prevention & control
2.
Am J Infect Control ; 51(1): 83-88, 2023 01.
Article in English | MEDLINE | ID: mdl-35339623

ABSTRACT

BACKGROUND: Hand hygiene is key to preventing health care-associated infections. Human observation is the gold standard for measuring compliance, but its utility is increasingly being questioned with calls for the use of video monitoring approaches. The utility of video-based systems to measure compliance according to the WHO 5 moments is largely unexamined, as is its acceptability amongst health care workers (HCW) and patients. This study examined HCW acceptability of video monitoring for hand hygiene auditing. METHODS: Following trial of a video monitoring system (reported elsewhere), 5 participating HCW attended 2 in-depth group interviews where they reviewed the footage and explored responses to the approach. Transcripts were analyzed using thematic analysis. RESULTS: Four themes were identified: 1) Fears; 2) Concerns for patients; 3) Changes to feedback; and 4) Behavioral responses to the cameras. HCWs expressed fears of punitive consequences, data security, and confidentiality. For patients, HCWs raised issues regarding invasion of privacy, ethics, and consent. HCWs suggested that video systems may result in less immediate feedback but also identified potential to use the footage for feedback. They also suggested that the Hawthorne Effect was less potent with video systems than human observation. CONCLUSIONS: The acceptability of video monitoring systems for hand hygiene compliance is complex and has the potential to complicate practical implementation. Additionally, exploration of the acceptability to patients is warranted. CHECKLIST: COREQ.


Subject(s)
Cross Infection , Hand Hygiene , Humans , Guideline Adherence , Health Personnel , Cross Infection/prevention & control , Qualitative Research , Infection Control , Hand Disinfection
3.
BMC Med Educ ; 22(1): 688, 2022 Sep 23.
Article in English | MEDLINE | ID: mdl-36151565

ABSTRACT

BACKGROUND: With the advent of COVID-19, many healthcare workers (HWs) in Australia requested access to powered air purifying respirators (PAPR) for improved respiratory protection, comfort and visibility. The urgency of the response at our hospital required rapid deployment of innovative training to ensure the safe use of PAPRs, in particular, a video-feedback training option to prepare HWs for PAPR competency. AIM: To explore the feasibility, acceptability, and utility of video-feedback in PAPR training and competency assessment. METHODS: Semi-structured interviews were conducted with 12 HWs, including clinicians from Intensive Care, Anaesthetics and Respiratory Medicine, at a large teaching hospital in Australia. FINDINGS: Participants believed that the use of video-feedback in PAPR training was feasible, acceptable and useful. They described a variety of benefits to learning and retention, from a variety of ways in which they engaged with the personal video-feedback. Participants also described the impact of reviewing personalised practice footage, compared to generic footage of an ideal performance. CONCLUSION: By conceptualising video-feedback using a pedagogical approach, this study contributes to knowledge around optimising methods for training HWs in PPE use, particularly when introducing a new and complex PPE device during an infectious disease outbreak.


Subject(s)
COVID-19 , Respiratory Protective Devices , COVID-19/prevention & control , Feedback , Health Personnel/education , Humans , Pandemics/prevention & control
4.
Nurs Educ Perspect ; 43(3): 152-157, 2022.
Article in English | MEDLINE | ID: mdl-35066562

ABSTRACT

AIM: This study aimed to gain an understanding of how students' perceptions of belonging are impacted by their observations of the cultural/racial climate and diversity and inclusion in a distance education environment. BACKGROUND: Studies have evaluated students' perceptions of belonging and racial climate in a physical environment; there is a gap in understanding those perceptions within a distance education environment. METHOD: In 2019, an online survey was administered to distance learning students from four academic programs at a national university that provides education services in all 50 states. RESULTS: Results of a multiple linear regression analysis showed that students' perceptions of university inclusion and diversity efforts, experiences related to language barriers, and advisors played a significant role in students' perceptions of belonging, F(4, 205) = 52.96, p < .000, with an R2 of .51. CONCLUSION: Supporting an equitable distance learning environment should be a paramount objective for universities.


Subject(s)
Education, Distance , Humans , Students , Surveys and Questionnaires , Temperature , Universities
5.
Pediatr Infect Dis J ; 40(9): 832-834, 2021 09 01.
Article in English | MEDLINE | ID: mdl-34285167

ABSTRACT

Viridans group streptococci (VGS) are an important cause of sepsis in immunosuppressed children. We reviewed the effectiveness of risk-stratified addition of vancomycin to empiric febrile neutropenia therapy among 107 children with leukemia or undergoing an allogeneic transplant. Of 19 VGS bacteremia episodes, 78.9% were susceptible to risk-stratified antibiotics including 100% from high-risk patients. All blood cultures were flagged positive within 24 hours.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Febrile Neutropenia/drug therapy , Febrile Neutropenia/microbiology , Hematopoietic Stem Cell Transplantation/adverse effects , Leukemia/complications , Streptococcal Infections/drug therapy , Vancomycin/therapeutic use , Viridans Streptococci/drug effects , Anti-Bacterial Agents/pharmacology , Child , Child, Preschool , Female , Humans , Leukemia/microbiology , Male , Microbial Sensitivity Tests , Practice Guidelines as Topic , Prospective Studies
6.
Infect Dis Health ; 26(4): 249-257, 2021 11.
Article in English | MEDLINE | ID: mdl-34266812

ABSTRACT

BACKGROUND: COVID-19 has placed unprecedented demands on infection control professionals (ICPs) and infectious disease (ID) physicians. This study examined their knowledge, preparedness, and experiences managing COVID-19 in the Australian healthcare settings. METHODS: A cross-sectional study of ICPs and ID physician members of the Australasian College for Infection Prevention and Control (ACIPC) and the Australasian Society for Infectious Diseases (ASID) was conducted using an online survey. Descriptive statistics were used to summarise and report data. RESULTS: A total of 103 survey responses were included in the analysis for ICPs and 45 for ID physicians. A majority of ICPs (78.7%) and ID physicians (77.8%) indicated having 'very good' or 'good' level of knowledge of COVID-19. Almost all ICPs (94.2%) relied on state or territory's department of health websites to source up-to-date information While most ID physicians (84.4%) used scientific literature and journals. A majority of ICPs (96%) and ID physicians (73.3%) reported feeling 'moderately prepared' or 'extremely prepared' for managing COVID-19. Most respondents had received specific training about COVID-19 within their workplace (ICPs: 75%; ID physicians: 66.7%), particularly training/certification in PPE use, which made them feel 'mostly or entirely confident' in using it. Most ICPs (84.5%) and ID physicians (76.2%) reported having 'considerably' or 'moderately more' work added to their daily duties. Their biggest concerns included the uncertainties under a rapidly changing landscape, PPE availability, and the community's compliance. CONCLUSION: Harmonised information, specific COVID-19 training and education, and adequate support for front-line workers are key to successfully managing COVID-19 and other future outbreaks.


Subject(s)
COVID-19 , Physicians , Australia , Cross-Sectional Studies , Health Knowledge, Attitudes, Practice , Humans , Infection Control , SARS-CoV-2
7.
Am J Infect Control ; 49(11): 1384-1391, 2021 11.
Article in English | MEDLINE | ID: mdl-33940065

ABSTRACT

BACKGROUND: Direct observation is the gold standard method for measuring hand hygiene compliance but its utility is increasingly being questioned. Various alternative electronic methods have been proposed, yet there is a paucity of research examining the use of these according to the World Health Organization's (WHO) '5 Moments for Hand Hygiene'. As a part of the process of developing a video-based monitoring system (VMS) capable of measuring hand hygiene compliance against the 5 moments criteria this paper reports methodological and technical issues that might arise from the use of a VMS for auditing in clinical practice. METHODS: In-depth semi-structured interviews were conducted with 27 Australian content experts in hand hygiene auditing and infection prevention to explore their responses to proposed VMS auditing approaches. Transcripts were analyzed using thematic and content analysis. RESULTS: Technical and methodological considerations for the use of VMS were interrelated and included concerns surrounding privacy, footage security, fears of surveillance and the potential for medico-legal consequences. Additionally, possible detrimental impacts on healthcare worker (HCW) -patient relationships, issues of cost versus benefits, HCW and patient safety and changes to feedback were also identified. CONCLUSIONS: The primary methodological and technical issues to overcome in order to implement VMS for hand hygiene auditing in clinical practice, centered upon issues of acceptability to patients and health professionals, privacy, consent and liability. CHECKLIST: COREQ.


Subject(s)
Cross Infection , Hand Hygiene , Australia , Feedback , Guideline Adherence , Health Personnel , Humans
8.
BMJ Case Rep ; 14(1)2021 Jan 18.
Article in English | MEDLINE | ID: mdl-33462030

ABSTRACT

This case represents a rare fulminant course of fried-rice associated food poisoning in an immunocompetent person due to pre-formed exotoxin produced by Bacillus cereus, with severe manifestations of sepsis, including multi-organ (hepatic, renal, cardiac, respiratory and neurological) failure, shock, metabolic acidosis, rhabdomyolysis and coagulopathy. Despite maximal supportive measures (continuous renal replacement therapy, plasmapheresis, N-acetylcysteine infusion and blood products, and broad-spectrum antimicrobials) and input from a multidisciplinary team (consisting of infectious diseases, intensive care, gastroenterology, surgery, toxicology, immunology and haematology), mortality resulted. This case is the first to use whole genome sequencing techniques to confirm the toxigenic potential of B. cereus It has important implications for food preparation and storage, particularly given its occurrence in home isolation during the COVID-19 pandemic.


Subject(s)
Bacillus cereus/genetics , Exotoxins/genetics , Foodborne Diseases/diagnosis , Acetylcysteine/therapeutic use , Acidosis/physiopathology , Acidosis/therapy , Adult , Anti-Arrhythmia Agents/therapeutic use , Anti-Bacterial Agents/therapeutic use , Arrhythmias, Cardiac/physiopathology , Arrhythmias, Cardiac/therapy , Bacillus cereus/isolation & purification , Blood Coagulation Disorders/physiopathology , Blood Coagulation Disorders/therapy , Blood Transfusion , Brain Diseases , Continuous Renal Replacement Therapy , Fatal Outcome , Female , Foodborne Diseases/microbiology , Foodborne Diseases/physiopathology , Foodborne Diseases/therapy , Free Radical Scavengers/therapeutic use , Humans , Immunocompetence , Liver Failure/physiopathology , Liver Failure/therapy , Multiple Organ Failure/physiopathology , Multiple Organ Failure/therapy , Plasmapheresis , Renal Insufficiency/physiopathology , Renal Insufficiency/therapy , Rhabdomyolysis/physiopathology , Rhabdomyolysis/therapy , Sepsis/physiopathology , Sepsis/therapy , Shock/physiopathology , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization , Whole Genome Sequencing
9.
Intern Med J ; 51(1): 42-51, 2021 01.
Article in English | MEDLINE | ID: mdl-33196128

ABSTRACT

BACKGROUND: On 31 December 2019, the World Health Organization recognised clusters of pneumonia-like cases due to a novel coronavirus disease (COVID-19). COVID-19 became a pandemic 71 days later. AIM: To report the clinical and epidemiological features, laboratory data and outcomes of the first group of 11 returned travellers with COVID-19 in Australia. METHODS: This is a retrospective, multi-centre case series. All patients with confirmed COVID-19 infection were admitted to tertiary referral hospitals in New South Wales, Queensland, Victoria and South Australia. RESULTS: The median age of the patient cohort was 42 years (interquartile range (IQR), 24-53 years) with six men and five women. Eight (72.7%) patients had returned from Wuhan, one from Shenzhen, one from Japan and one from Europe. Possible human-to-human transmission from close family contacts in gatherings overseas occurred in two cases. Symptoms on admission were fever, cough and sore throat (n = 9, 81.8%). Co-morbidities included hypertension (n = 3, 27.3%) and hypercholesterolaemia (n = 2, 18.2%). No patients developed severe acute respiratory distress nor required intensive care unit admission or mechanical ventilation. After a median hospital stay of 14.5 days (IQR, 6.75-21), all patients were discharged. CONCLUSIONS: This is a historical record of the first COVID-19 cases in Australia during the early biocontainment phase of the national response. These findings were invaluable for establishing early inpatient and outpatient COVID-19 models of care and informing the management of COVID-19 over time as the outbreak evolved. Future research should extend this Australian case series to examine global epidemiological variation of this novel infection.


Subject(s)
COVID-19/epidemiology , Adult , Australia/epidemiology , COVID-19/therapy , Female , Humans , Male , Middle Aged , Patient Discharge , Retrospective Studies , Tertiary Care Centers , Young Adult
10.
JAMA ; 323(6): 527-537, 2020 02 11.
Article in English | MEDLINE | ID: mdl-32044943

ABSTRACT

Importance: Methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is associated with mortality of more than 20%. Combining standard therapy with a ß-lactam antibiotic has been associated with reduced mortality, although adequately powered randomized clinical trials of this intervention have not been conducted. Objective: To determine whether combining an antistaphylococcal ß-lactam with standard therapy is more effective than standard therapy alone in patients with MRSA bacteremia. Design, Setting, and Participants: Open-label, randomized clinical trial conducted at 27 hospital sites in 4 countries from August 2015 to July 2018 among 352 hospitalized adults with MRSA bacteremia. Follow-up was complete on October 23, 2018. Interventions: Participants were randomized to standard therapy (intravenous vancomycin or daptomycin) plus an antistaphylococcal ß-lactam (intravenous flucloxacillin, cloxacillin, or cefazolin) (n = 174) or standard therapy alone (n = 178). Total duration of therapy was determined by treating clinicians and the ß-lactam was administered for 7 days. Main Outcomes and Measures: The primary end point was a 90-day composite of mortality, persistent bacteremia at day 5, microbiological relapse, and microbiological treatment failure. Secondary outcomes included mortality at days 14, 42, and 90; persistent bacteremia at days 2 and 5; acute kidney injury (AKI); microbiological relapse; microbiological treatment failure; and duration of intravenous antibiotics. Results: The data and safety monitoring board recommended early termination of the study prior to enrollment of 440 patients because of safety. Among 352 patients randomized (mean age, 62.2 [SD, 17.7] years; 121 women [34.4%]), 345 (98%) completed the trial. The primary end point was met by 59 (35%) with combination therapy and 68 (39%) with standard therapy (absolute difference, -4.2%; 95% CI, -14.3% to 6.0%). Seven of 9 prespecified secondary end points showed no significant difference. For the combination therapy vs standard therapy groups, all-cause 90-day mortality occurred in 35 (21%) vs 28 (16%) (difference, 4.5%; 95% CI, -3.7% to 12.7%); persistent bacteremia at day 5 was observed in 19 of 166 (11%) vs 35 of 172 (20%) (difference, -8.9%; 95% CI, -16.6% to -1.2%); and, excluding patients receiving dialysis at baseline, AKI occurred in 34 of 145 (23%) vs 9 of 145 (6%) (difference, 17.2%; 95% CI, 9.3%-25.2%). Conclusions and Relevance: Among patients with MRSA bacteremia, addition of an antistaphylococcal ß-lactam to standard antibiotic therapy with vancomycin or daptomycin did not result in significant improvement in the primary composite end point of mortality, persistent bacteremia, relapse, or treatment failure. Early trial termination for safety concerns and the possibility that the study was underpowered to detect clinically important differences in favor of the intervention should be considered when interpreting the findings. Trial Registration: ClinicalTrials.gov Identifier: NCT02365493.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Bacteremia/drug therapy , Daptomycin/therapeutic use , Methicillin-Resistant Staphylococcus aureus , Staphylococcal Infections/drug therapy , Vancomycin/therapeutic use , beta-Lactams/therapeutic use , Adult , Aged , Anti-Bacterial Agents/adverse effects , Bacteremia/microbiology , Bacteremia/mortality , Cefazolin/therapeutic use , Cloxacillin/therapeutic use , Drug Therapy, Combination , Endocarditis, Bacterial/drug therapy , Female , Floxacillin/therapeutic use , Follow-Up Studies , Humans , Male , Middle Aged , Staphylococcal Infections/microbiology , Staphylococcal Infections/mortality , Treatment Failure , beta-Lactams/adverse effects
11.
Infect Dis Health ; 25(2): 92-100, 2020 03.
Article in English | MEDLINE | ID: mdl-31932242

ABSTRACT

Hand hygiene is universally recognised as the primary measure to reduce healthcare-associated infections. Studies have convincingly demonstrated a link between increased hand hygiene compliance and reductions in rates of healthcare-associated infections. Direct observation is considered the gold standard method for monitoring hand hygiene compliance. Despite the acknowledged benefits of this approach, recent literature has highlighted a range of issues impacting on the reliability and validity of this data collection technique. The rise of technology in healthcare provides opportunity for alternative methods that promise advantages over direct human observation. There have been no published examples of systems that are able to capture data consistent with all the WHO '5 Moments for Hand Hygiene'. In this paper we explore current human-based auditing practises for monitoring hand hygiene compliance and raise for discussion and debate video-based technologies to monitor hand hygiene compliance. We raise questions regarding hybrid approaches that incorporate both direct human observation and indirect video-based surveillance, and the possible advantages and disadvantages therein for monitoring hand hygiene compliance. We suggest that such methods have the potential to ameliorate, or minimise, the inherent biases associated with direct observation, notably the Hawthorne Effect. Future research into the utility of a hybrid approach to auditing, including the technical specifications, efficacy, cost effectiveness and acceptability of such a model is warranted.


Subject(s)
Guideline Adherence , Hand Hygiene , Infection Control , Practice Guidelines as Topic , Video Recording , Humans
13.
Emerg Med Australas ; 29(1): 56-62, 2017 Feb.
Article in English | MEDLINE | ID: mdl-27758065

ABSTRACT

OBJECTIVE: The objective of the present study is to determine whether a predictive rule could safely reduce the number of negative blood cultures collected in an Australian ED and to assess the clinical impact of positive results from blood cultures taken in the ED. METHODS: All positive blood cultures taken in the ED at a single facility were retrospectively identified for the calendar year 2012. Clinically significant bacteraemia episodes were assessed against a predictive rule using major and minor clinical and laboratory criteria gathered from medical records and pathology databases, and compared with a randomly generated sample of ED patient episode with negative blood cultures. The ED and final diagnoses and blood culture impact on clinical management were also collected. RESULTS: The predictive rule has a high sensitivity (98.8%) and modest specificity (48.7%), and if applied stringently would have prevented almost half of all blood cultures in our ED but missed two positives. Blood cultures altered the clinical management of 94.3% bacteraemic patients, representing 3.4% of all ED patients with blood cultures performed. High discordance (54%) between ED diagnosis and discharge diagnosis of bacteraemic patients was noted. CONCLUSIONS: Bacteraemia detected in the ED alters subsequent patient management. The predictive rule can be safely applied in the ED to determine need for blood culture collection. Blood cultures should not be omitted in the ED based entirely on preliminary diagnosis given the high discordance seen between ED and discharge diagnosis.


Subject(s)
Bacteremia/diagnosis , Blood Culture/standards , Decision Support Techniques , Guidelines as Topic/standards , Adult , Aged , Aged, 80 and over , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Blood Culture/methods , Emergency Service, Hospital/organization & administration , Emergency Service, Hospital/statistics & numerical data , Female , Humans , Male , Middle Aged , New South Wales , Retrospective Studies , Sensitivity and Specificity
14.
Clin Infect Dis ; 62(2): 173-180, 2016 Jan 15.
Article in English | MEDLINE | ID: mdl-26349552

ABSTRACT

BACKGROUND: In vitro laboratory and animal studies demonstrate a synergistic role for the combination of vancomycin and antistaphylococcal ß-lactams for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia. Prospective clinical data are lacking. METHODS: In this open-label, multicenter, clinical trial, adults with MRSA bacteremia received vancomycin 1.5 g intravenously twice daily and were randomly assigned (1:1) to receive intravenous flucloxacillin 2 g every 6 hours for 7 days (combination group) or no additional therapy (standard therapy group). Participants were stratified by hospital and randomized in permuted blocks of variable size. Randomization codes were kept in sealed, sequentially numbered, opaque envelopes. The primary outcome was the duration of MRSA bacteremia in days. RESULTS: We randomly assigned 60 patients to receive vancomycin (n = 29), or vancomycin plus flucloxacillin (n = 31). The mean duration of bacteremia was 3.00 days in the standard therapy group and 1.94 days in the combination group. According to a negative binomial model, the mean time to resolution of bacteremia in the combination group was 65% (95% confidence interval, 41%-102%; P = .06) that in the standard therapy group. There was no difference in the secondary end points of 28- and 90-day mortality, metastatic infection, nephrotoxicity, or hepatotoxicity. CONCLUSIONS: Combining an antistaphylococcal ß-lactam with vancomycin may shorten the duration of MRSA bacteremia. Further trials with a larger sample size and objective clinically relevant end points are warranted. Australian New Zealand Clinical Trials Registry: ACTRN12610000940077 (www.anzctr.org.au).


Subject(s)
Anti-Bacterial Agents/pharmacology , Bacteremia/drug therapy , Floxacillin/pharmacology , Methicillin-Resistant Staphylococcus aureus/isolation & purification , Staphylococcal Infections/drug therapy , Vancomycin/pharmacology , Administration, Intravenous , Adolescent , Adult , Aged , Aged, 80 and over , Animals , Bacteremia/microbiology , Drug Therapy, Combination/methods , Female , Humans , Male , Middle Aged , New Zealand , Prospective Studies , Staphylococcal Infections/microbiology , Time Factors , Treatment Outcome , Young Adult
15.
J Can Acad Child Adolesc Psychiatry ; 22(4): 310-6, 2013 Nov.
Article in English | MEDLINE | ID: mdl-24223051

ABSTRACT

OBJECTIVE: To explore and describe philosophies and characteristics of intensive eating disorder (ED) treatment programs based in tertiary care institutions across Canada. METHOD: A ninety-item survey examining ED services for adolescents was developed, piloted, and completed by 11 programs across Canada. Information pertaining to program characteristics and components, governance, staffing, referrals, assessments, therapeutic modalities in place, nutritional practices, and treatment protocols were collected. RESULTS: The results highlight the diversity of programming available but also the lack of a unified approach to intensive eating disorder treatment in youth. CONCLUSIONS: This report provides important baseline data that offers a framework that programs can use to come together to establish assessment and treatment protocols as well as a process for outcome evaluation. Continued collaboration will be essential moving forward to ensure Canadian youth, regardless of geographic location, receive the necessary treatment required to attain and sustain recovery.


OBJECTIF: Explorer et décrire les philosophies et les caractéristiques des programmes de traitement intensif des troubles alimentaires (TA) menés dans des institutions de soins tertiaires au Canada. MÉTHODE: Un questionnaire en 90 items examinant les services de TA pour adolescents a été mis au point, piloté et rempli par 11 programmes pancanadiens. L'information concernant les caractéristiques et les composantes des programmes, la gouvernance, la dotation en personnel, l'aiguillage, les évaluations, les modalités thérapeutiques instaurées, les pratiques nutritionnelles et les protocoles thérapeutiques a été recueillie. RÉSULTATS: Les résultats mettent en évidence la diversité des programmes offerts mais également, l'absence d'une approche unifiée du traitement intensif des troubles alimentaires chez les adolescents. CONCLUSIONS: Ce rapport offre d'importantes données de départ constituant un cadre que peuvent utiliser les programmes pour s'assembler et établir des protocoles d'évaluation et de traitement ainsi qu'un processus d'évaluation des résultats. La collaboration continue sera essentielle dorénavant pour faire en sorte que les adolescents canadiens, peu importe l'emplacement géographique, reçoivent le traitement nécessaire pour atteindre et faire durer le rétablissement.

17.
J Clin Virol ; 56(3): 255-9, 2013 Mar.
Article in English | MEDLINE | ID: mdl-23290385

ABSTRACT

BACKGROUND: A previously unidentified species of human rhinovirus, HRV-C, was described in 2006 in association with lower respiratory tract infection (LRTI). Features of infection in immunosuppressed adults are poorly characterised. OBJECTIVES: This study aims to determine the epidemiology of HRV-C in haematopoietic stem cell transplant (HSCT) recipients in a single centre. STUDY DESIGN: A prospective cohort study of all HSCT recipients admitted to Westmead Hospital, Westmead, Australia from 1 July 2005 to 30 September 2007 was undertaken. Nose/throat samples were collected from all patients at the time of admission and patients developing pre-defined symptoms and/or signs of respiratory infection during the admission. Samples were processed and tested for rhinoviruses and 14 other respiratory viruses using nucleic acid-based methods, immunofluorescence and culture. HRV genotyping was performed by sequencing a region of the rhinovirus 5' untranslated region (UTR). Clinical data on each episode were collected prospectively. RESULTS: HRVs were identified in 24 episodes: 8% of 299 episodes of clinically- defined respiratory infections and 39% of 61 episodes in which respiratory viruses were detected. HRV-C was most frequent (HRV-C: nine, HRV-A: eight and HRV-B: two). Seven episodes of HRV-C, five with pneumonia, occurred within 100 days of HSCT. Co-pathogens were frequent. CONCLUSIONS: The newly described HRV-C was the most common rhinovirus group detected in HSCT recipients with respiratory infection, with co-pathogens being frequent. Further research is required to understand the activity and pathogenicity of this virus in HSCT recipients.


Subject(s)
Common Cold/epidemiology , Common Cold/virology , Hematopoietic Stem Cell Transplantation/adverse effects , Rhinovirus/isolation & purification , Transplantation , 5' Untranslated Regions , Adolescent , Adult , Aged , Australia/epidemiology , Cohort Studies , Female , Genotype , Humans , Immunocompromised Host , Male , Middle Aged , Nose/virology , Pharynx/virology , Prospective Studies , Rhinovirus/classification , Rhinovirus/genetics , Sequence Analysis, DNA , Young Adult
18.
Biol Blood Marrow Transplant ; 17(1): 147-53, 2011 Jan.
Article in English | MEDLINE | ID: mdl-20637883

ABSTRACT

There are limited data on the impact of H1N109 infection in patients undergoing hematopoietic stem cell transplantation (HSCT). We reviewed individual medical records of patients who underwent HSCT or were on follow-up post-HSCT between May and September 2009. Thirteen patients with H1N109 infection were identified: 2 <100 days post-HSCT, 7 >100 days post-HSCT, and 4 just prior to HSCT. Five (38.7%) had lower respiratory tract involvement (LRTI), whereas the remainder had upper respiratory tract involvement (URTI). LRTI occurred in patients who were profoundly neutropenic post-HSCT or on potent immunosuppression for chronic graft-versus-host disease (cGVHD). At 100 days post-H1N109 infection, only 1 patient with LRTI survived, whereas all with URTI are alive. Four patients successfully treated for H1N109 infection prior to HSCT underwent the procedure after 4 to 6 weeks without any complications. Another 6 patients received oseltamivir prophylaxis during conditioning and none developed H1N109 infection. In conclusion, H1N109 infection was associated with LRTI in HSCT recipients who were profoundly neutropenic or immunosuppressed. Prior H1N109 infection did not affect the successful outcome of HSCT and oseltamivir prophylaxis in a small group of recipients resulted in no infection. Further studies are required.


Subject(s)
Hematopoietic Stem Cell Transplantation/adverse effects , Influenza, Human/etiology , Orthomyxoviridae , Respiratory Tract Diseases/etiology , Adult , Animals , Female , Humans , Immunosuppression Therapy/adverse effects , Male , Middle Aged , Neutropenia/etiology , Oseltamivir/therapeutic use , Respiratory Tract Diseases/virology , Retrospective Studies , Swine
19.
Emerg Infect Dis ; 16(7): 1068-75, 2010 Jul.
Article in English | MEDLINE | ID: mdl-20587176

ABSTRACT

We describe laboratory-confirmed influenza A pandemic (H1N1) 2009 in 17 hospitalized recipients of a hematopoietic stem cell transplant (HSCT) (8 allogeneic) and in 15 patients with malignancy treated at 6 Australian tertiary centers during winter 2009. Ten (31.3%) patients were admitted to intensive care, and 9 of them were HSCT recipients. All recipients of allogeneic HSCT with infection <100 days posttransplantation or severe graft-versus-host disease were admitted to an intensive care unit. In-hospital mortality rate was 21.9% (7/32). The H275Y neuraminidase mutation, which confers oseltamivir resistance developed in 4 of 7 patients with PCR positive for influenza after > or = 4 days of oseltamivir therapy. Three of these 4 patients were critically ill. Oseltamivir resistance in 4 (13.3%) of 30 patients who were administered oseltamivir highlights the need for ongoing surveillance of such resistance and further research on optimal antiviral therapy in the immunocompromised.


Subject(s)
Antiviral Agents/therapeutic use , Disease Outbreaks , Influenza A Virus, H1N1 Subtype , Influenza, Human/drug therapy , Oseltamivir/therapeutic use , Australia , Drug Resistance, Viral , Hematopoietic Stem Cell Transplantation/adverse effects , Humans , Influenza, Human/diagnosis , Influenza, Human/epidemiology , Intensive Care Units , Transplantation, Homologous
20.
J Virol ; 84(12): 6229-34, 2010 Jun.
Article in English | MEDLINE | ID: mdl-20357093

ABSTRACT

Exploration of the genetic diversity of WU polyomavirus (WUV) has been limited in terms of the specimen numbers and particularly the sizes of the genomic fragments analyzed. Using whole-genome sequencing of 48 WUV strains collected in four continents over a 5-year period and 16 publicly available whole-genome sequences, we identified three main WUV clades and five subtypes, provisionally termed Ia, Ib, Ic, II, IIIa, and IIIb. Overall nucleotide variation was low (0 to 1.2%). The discriminatory power of the previous VP2 fragment typing method was found to be limited, and a new, larger genotyping region within the VP2/1 interface was proposed.


Subject(s)
Genome, Viral , Polyomavirus Infections/virology , Polyomavirus/classification , Polyomavirus/genetics , Base Sequence , Genetic Variation , Humans , Molecular Sequence Data , Phylogeny , Polyomavirus/isolation & purification
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