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Liu S, Pan J, Chen Y, Ye L, Chen E, Wen X, Wu W, Wu B, Qi X, Chan TC, Sun W, Yu Z, Zhang T, Yan J, Jiang J. Human respiratory syncytial virus subgroups A and B outbreak in a kindergarten in Zhejiang Province, China, 2023. Front Public Health 2024; 12:1368744. [PMID: 38435292 PMCID: PMC10904655 DOI: 10.3389/fpubh.2024.1368744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
Background In May-June 2023, an unprecedented outbreak of human respiratory syncytial virus (HRSV) infections occurred in a kindergarten, Zhejiang Province, China. National, provincial, and local public health officials investigated the cause of the outbreak and instituted actions to control its spread. Methods We interviewed patients with the respiratory symptoms by questionnaire. Respiratory samples were screened for six respiratory pathogens by real-time quantitative polymerase chain reaction (RT-PCR). The confirmed cases were further sequenced of G gene to confirm the HRSV genotype. A phylogenetic tree was reconstructed by maximum likelihood method. Results Of the 103 children in the kindergarten, 45 were classified as suspected cases, and 25 cases were confirmed by RT-PCR. All confirmed cases were identified from half of classes. 36% (9/25) were admitted to hospital, none died. The attack rate was 53.19%. The median ages of suspected and confirmed cases were 32.7 months and 35.8 months, respectively. Nine of 27 confirmed cases lived in one community. Only two-family clusters among 88 household contacts were HRSV positive. A total of 18 of the G gene were obtained from the confirmed cases. Phylogenetic analyses revealed that 16 of the sequences belonged to the HRSV B/BA9 genotype, and the other 2 sequences belonged to the HRSV A/ON1 genotype. The school were closed on June 9 and the outbreak ended on June 15. Conclusion These findings suggest the need for an increased awareness of HRSV coinfections outbreak in the kindergarten, when HRSV resurges in the community after COVID-19 pandemic.
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Affiliation(s)
- Shelan Liu
- Department of Infectious Diseases, Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Jinren Pan
- Department of Infectious Diseases, Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Yin Chen
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Ling Ye
- Department of Infectious Diseases, Daishan Country Centre for Disease Control and Prevention, Zhoushan, China
| | - Enfu Chen
- Department of Infectious Diseases, Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Xiaosha Wen
- Chinese Field Epidemiology Training Program, China Centre for Disease Control and Prevention, Beijing, China
| | - Wenjie Wu
- Department of Infectious Diseases, Zhoushan Municipal Centre for Disease Control and Prevention, Zhoushan, China
| | - Bing Wu
- Department of Microbiology, Zhoushan Municipal Center for Disease Control and Prevention, Zhoushan, China
| | - Xiaoqi Qi
- Chinese Field Epidemiology Training Program, China Centre for Disease Control and Prevention, Beijing, China
| | - Ta-Chien Chan
- Research Center for Humanities and Social Sciences, Academia Sinica, Taipei, Taiwan
| | - Wanwan Sun
- Department of Infectious Diseases, Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Zhao Yu
- Department of Infectious Diseases, Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Tongjie Zhang
- Department of Infectious Diseases, Daishan Country Centre for Disease Control and Prevention, Zhoushan, China
| | - Jianbo Yan
- Department of Infectious Diseases, Zhoushan Municipal Centre for Disease Control and Prevention, Zhoushan, China
| | - Jianmin Jiang
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
- Key Lab of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
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Fleming JA, Baral R, Higgins D, Khan S, Kochar S, Li Y, Ortiz JR, Cherian T, Feikin D, Jit M, Karron RA, Limaye RJ, Marshall C, Munywoki PK, Nair H, Newhouse LC, Nyawanda BO, Pecenka C, Regan K, Srikantiah P, Wittenauer R, Zar HJ, Sparrow E. Value profile for respiratory syncytial virus vaccines and monoclonal antibodies. Vaccine 2023; 41 Suppl 2:S7-S40. [PMID: 37422378 DOI: 10.1016/j.vaccine.2022.09.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 07/10/2023]
Abstract
Respiratory syncytial virus (RSV) is the predominant cause of acute lower respiratory infection (ALRI) in young children worldwide, yet no licensed RSV vaccine exists to help prevent the millions of illnesses and hospitalizations and tens of thousands of young lives taken each year. Monoclonal antibody (mAb) prophylaxis exists for prevention of RSV in a small subset of very high-risk infants and young children, but the only currently licensed product is impractical, requiring multiple doses and expensive for the low-income settings where the RSV disease burden is greatest. A robust candidate pipeline exists to one day prevent RSV disease in infant and pediatric populations, and it focuses on two promising passive immunization approaches appropriate for low-income contexts: maternal RSV vaccines and long-acting infant mAbs. Licensure of one or more candidates is feasible over the next one to three years and, depending on final product characteristics, current economic models suggest both approaches are likely to be cost-effective. Strong coordination between maternal and child health programs and the Expanded Program on Immunization will be needed for effective, efficient, and equitable delivery of either intervention. This 'Vaccine Value Profile' (VVP) for RSV is intended to provide a high-level, holistic assessment of the information and data that are currently available to inform the potential public health, economic and societal value of pipeline vaccines and vaccine-like products. This VVP was developed by a working group of subject matter experts from academia, non-profit organizations, public private partnerships and multi-lateral organizations, and in collaboration with stakeholders from the WHO headquarters. All contributors have extensive expertise on various elements of the RSV VVP and collectively aimed to identify current research and knowledge gaps. The VVP was developed using only existing and publicly available information.
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Affiliation(s)
- Jessica A Fleming
- Center for Vaccine Innovation and Access, PATH, 2201 Westlake Ave Suite 200, Seattle, WA 98121, United States.
| | - Ranju Baral
- Center for Vaccine Innovation and Access, PATH, 2201 Westlake Ave Suite 200, Seattle, WA 98121, United States.
| | - Deborah Higgins
- Center for Vaccine Innovation and Access, PATH, 2201 Westlake Ave Suite 200, Seattle, WA 98121, United States.
| | - Sadaf Khan
- Maternal, Newborn, Child Health and Nutrition, PATH, 2201 Westlake Ave Suite 200, Seattle, WA 98121, United States.
| | - Sonali Kochar
- Global Healthcare Consulting and Department of Global Health, University of Washington, Hans Rosling Center, 3980 15th Ave NE, Seattle, WA 98105, United States.
| | - You Li
- School of Public Health, Nanjing Medical University, No. 101 Longmian Avenue, Jiangning District, Nanjing, Jiangsu Province 211166, PR China.
| | - Justin R Ortiz
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, 685 West Baltimore Street, Baltimore, MD 21201-1509, United States.
| | - Thomas Cherian
- MMGH Consulting GmbH, Kuerbergstrasse 1, 8049 Zurich, Switzerland.
| | - Daniel Feikin
- Department of Immunization, Vaccines and Biologicals, World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland.
| | - Mark Jit
- London School of Hygiene & Tropical Medicine, University of London, Keppel St, London WC1E 7HT, United Kingdom.
| | - Ruth A Karron
- Center for Immunization Research, Johns Hopkins University, Department of International Health, 624 N. Broadway, Rm 117, Baltimore, MD 21205, United States.
| | - Rupali J Limaye
- International Health, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, Baltimore, MD 21205, United States.
| | - Caroline Marshall
- Department of Immunization, Vaccines and Biologicals, World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland.
| | - Patrick K Munywoki
- Center for Disease Control and Prevention, KEMRI Complex, Mbagathi Road off Mbagathi Way, PO Box 606-00621, Village Market, Nairobi, Kenya.
| | - Harish Nair
- Centre for Global Health, Usher Institute, University of Edinburgh, Edinburgh EH8 9AG, United Kingdom.
| | - Lauren C Newhouse
- Center for Vaccine Innovation and Access, PATH, 2201 Westlake Ave Suite 200, Seattle, WA 98121, United States.
| | - Bryan O Nyawanda
- Kenya Medical Research Institute, Hospital Road, P.O. Box 1357, Kericho, Kenya.
| | - Clint Pecenka
- Center for Vaccine Innovation and Access, PATH, 2201 Westlake Ave Suite 200, Seattle, WA 98121, United States.
| | - Katie Regan
- Center for Vaccine Innovation and Access, PATH, 2201 Westlake Ave Suite 200, Seattle, WA 98121, United States.
| | - Padmini Srikantiah
- Bill & Melinda Gates Foundation, 500 5th Ave N, Seattle, WA 98109, United States.
| | - Rachel Wittenauer
- Department of Pharmacy, University of Washington, Health Sciences Building, 1956 NE Pacific St H362, Seattle, WA 98195, United States.
| | - Heather J Zar
- Department of Paediatrics & Child Health and SA-MRC Unit on Child & Adolescent Health, Red Cross Children's Hospital, University of Cape Town, Klipfontein Road, Rondebosch, Cape Town 7700, South Africa.
| | - Erin Sparrow
- Department of Immunization, Vaccines and Biologicals, World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland.
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Mosalli R, Alqarni SA, Khayyat WW, Alsaidi ST, Almatrafi AS, Bawakid AS, Paes B. Respiratory syncytial virus nosocomial outbreak in neonatal intensive care: A review of the incidence, management, and outcomes. Am J Infect Control 2022; 50:801-808. [PMID: 34736992 DOI: 10.1016/j.ajic.2021.10.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 01/28/2023]
Abstract
BACKGROUND The main objective was to determine the incidence, management, and outcomes of respiratory syncytial virus nosocomial infection (RSVNI) outbreaks in neonatal intensive care units. METHODS A comprehensive search of RSVNI in 9 databases was conducted from January 1, 2000 to May 1, 2021, of which the Cochrane Library comprised the Cochrane central register of controlled trials and the Cochrane database of systematic reviews. Two hundred and twenty-eight articles were retrieved and 17 were retained. A descriptive analysis was performed, and frequencies are reported as mean, median, and range where pertinent. RESULTS One hundred and seventeen infants were analyzed and comprised preterms (88.1%) and those with pre-existing co-morbidities. The estimated proportional incidence of RSVNI was 23.8% (177/744) infants. Outbreaks were principally managed by conventional protective measures, neonatal intensive care unit closure, and visitor restriction. Palivizumab was used to control RSVNI in 10 studies. RSVNI-related mortality was 8.5% (15/177) and 8.0% (7/87) among infants where infection control was solely employed. CONCLUSION RSVNI is associated with significant morbidity and mortality. The use of palivizumab should be a multidisciplinary decision, based on rapidly spreading infection. Prospective studies are essential to determine the cost-benefit of palivizumab versus standard prevention control for an RSVNI outbreak.
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Affiliation(s)
- Rafat Mosalli
- Department of Pediatrics, Umm Al-Qura University, Makkah, Saudi Arabia; Department of Pediatrics, International Medical Center, Jeddah, Saudi Arabia.
| | - Sarah A Alqarni
- Medical College, Umm Al Qura University, Mecca, Saudi Arabia
| | - Wed W Khayyat
- Medical College, Umm Al Qura University, Mecca, Saudi Arabia
| | | | | | - Afnan S Bawakid
- Medical College, Umm Al Qura University, Mecca, Saudi Arabia
| | - Bosco Paes
- Department of Pediatrics (Neonatal Division), McMaster University, Hamilton, Ontario, Canada
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4
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Linfield DT, Gao N, Raduka A, Harford TJ, Piedimonte G, Rezaee F. RSV attenuates epithelial cell restitution by inhibiting actin cytoskeleton-dependent cell migration. Am J Physiol Lung Cell Mol Physiol 2021; 321:L189-L203. [PMID: 34010080 DOI: 10.1152/ajplung.00118.2021] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The airway epithelium's ability to repair itself after injury, known as epithelial restitution, is an essential mechanism enabling the respiratory tract's normal functions. Respiratory Syncytial Virus (RSV) is the leading cause of lower respiratory tract infections worldwide. We sought to determine whether RSV delays the airway epithelium wound repair process both in vitro and in vivo. We found that RSV infection attenuated epithelial cell migration, a step in wound repair, promoted stress fiber formation, and mediated assembly of large focal adhesions (FA). Inhibition of Rho kinase (ROCK), a master regulator of actin function, reversed these effects. There was increased RhoA and phospho-myosin light chain (pMLC2) following RSV infection. In vivo, mice were intraperitoneally inoculated with naphthalene to induce lung injury, followed by RSV infection. RSV infection delayed re-epithelialization. There were increased concentrations of pMLC2 in day 7 naphthalene plus RSV animals which normalized by day 14. This study suggests a key mechanism by which RSV infection delays wound healing.
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Affiliation(s)
| | - Nannan Gao
- Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, United States
| | - Andjela Raduka
- Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, United States
| | - Terri J Harford
- Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, United States
| | | | - Fariba Rezaee
- Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, United States.,Center for Pediatric Pulmonology, Cleveland Clinic Children's, Cleveland, Ohio, United States
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5
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Rose EB, Washington EJ, Wang L, Benowitz I, Thornburg NJ, Gerber SI, Peret TCT, Langley GE. Multiple Respiratory Syncytial Virus Introductions Into a Neonatal Intensive Care Unit. J Pediatric Infect Dis Soc 2021; 10:118-124. [PMID: 32249314 DOI: 10.1093/jpids/piaa026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 03/06/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Outbreaks of respiratory syncytial virus (RSV) in neonatal intensive care units (NICUs) are of concern because of the risk of severe disease in young infants. We describe an outbreak of RSV in a NICU and use whole genome sequencing (WGS) to better understand the relatedness of viruses among patients. METHODS An investigation was conducted to identify patients and describe their clinical course. Infection control measures were implemented to prevent further spread. Respiratory specimens from outbreak-related patients and the community were tested using WGS. Phylogenetic trees were constructed to understand relatedness of the viruses. RESULTS Seven patients developed respiratory symptoms within an 11-day span in December 2017 and were diagnosed with RSV; 6 patients (86%) were preterm and 1 had chronic lung disease. Three patients required additional respiratory support after symptom onset, and none died. Six of 7 patients were part of the same cluster based on > 99.99% nucleotide agreement with each other and 3 unique single-nucleotide polymorphisms were identified in viruses sequenced from those patients. The seventh patient was admitted from the community with respiratory symptoms and had a genetically distinct virus that was not related to the other 6. Implementation of enhanced infection control measures likely limited the spread. CONCLUSIONS Using WGS, we found 2 distinct introductions of RSV into a NICU, highlighting the risk of healthcare-associated infections during RSV season. Early recognition and infection control measures likely limited spread, emphasizing the importance of considering RSV in the differential diagnosis of respiratory infections in healthcare settings.
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Affiliation(s)
- Erica Billig Rose
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.,Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Erica J Washington
- Louisiana Department of Health, Office of Public Health, Infectious Disease Epidemiology Section, New Orleans, Louisiana, USA
| | - Lijuan Wang
- IHRC Inc, contracting agency to the Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Isaac Benowitz
- Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Natalie J Thornburg
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Susan I Gerber
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Teresa C T Peret
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Gayle E Langley
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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6
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Viral Respiratory Infection, a Risk in Pediatric Cardiac Surgery: A Propensity-Matched Analysis. Pediatr Crit Care Med 2020; 21:e431-e440. [PMID: 32224825 DOI: 10.1097/pcc.0000000000002308] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES 1) To describe the postoperative course and outcomes of cardiac surgery in children with perioperative viral respiratory infection, 2) to evaluate optimal surgical timing for preoperative viral respiratory infection patients, and 3) to define risk stratification. DESIGN Retrospective study of children undergoing cardiac surgery. Children were tested using a multiplex polymerase chain reaction (respiratory virus polymerase chain reaction) panel capturing seven respiratory viruses. Respiratory virus polymerase chain reaction testing was routinely performed in patients under 2 years old. Those with negative results yet highly suspected of viral respiratory infection after surgeries would be tested again. SETTING A pediatric cardiac surgical ICU of pediatric cardiac surgery department at Fuwai Hospital. PATIENTS Children admitted between January 1, 2014, and December 31, 2016, to perform respiratory virus polymerase chain reaction testing and cardiac surgery were included. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS A total of 2,831 patients had respiratory virus polymerase chain reaction testing, and viruses were detected in 91 patients (3.2%), including 35 preoperative and 56 postoperative. Of the 35 preoperative viral respiratory infection patients, there were 29 viral respiratory infection-resolved (patients for whom surgery was postponed until resolution of viral respiratory infection symptoms and negative respiratory virus polymerase chain reaction) and six viral respiratory infection-unresolved (who underwent cardiac surgery before resolution of symptoms and clearance of carriage) patients. Furthermore, there were seven deaths, including one in the preoperative viral respiratory infection-unresolved group and six in the postoperative viral respiratory infection group. A propensity score matching was performed to correct the selection bias and identify the comparable patient groups. Compared to their matched nonviral respiratory infection patients, viral respiratory infection-resolved patients had similar duration of mechanical ventilation and length of stay, while viral respiratory infection-unresolved patients had longer durations of postoperative mechanical ventilation (p = 0.033), PICU (p = 0.028) and hospital length of stay (p = 0.010), and postoperative viral respiratory infection patients had significantly greater duration of postoperative recovery (p < 0.001) and higher mortality (p < 0.001). Earlier diagnosis of postoperative viral respiratory infection was associated with longer mechanical ventilation duration (r = 0.422; p < 0.001). Palliative cardiac surgery was the only variable significantly associated with mortality in multivariate analysis (odds ratio, 12.0; 95% CI, 1.6-87.5; p = 0.014). CONCLUSIONS The preoperative-unresolved and postoperative viral respiratory infection were associated with prolonged postoperative recovery, increased severity, and mortality in children with cardiac surgeries. Our results suggested the optimal surgical timing may be after the resolution of viral respiratory infection symptoms and carriage unless the perceived benefits of early surgery outweigh the risk of death, prolonged ventilation, and PICU length of stay. Palliative surgeries were associated with increasing mortality.
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Which healthcare workers work with acute respiratory illness? Evidence from Canadian acute-care hospitals during 4 influenza seasons: 2010-2011 to 2013-2014. Infect Control Hosp Epidemiol 2019; 40:889-896. [PMID: 31208477 DOI: 10.1017/ice.2019.141] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Healthcare workers (HCWs) are at risk of acquiring and transmitting respiratory viruses while working in healthcare settings. OBJECTIVES To investigate the incidence of and factors associated with HCWs working during an acute respiratory illness (ARI). METHODS HCWs from 9 Canadian hospitals were prospectively enrolled in active surveillance for ARI during the 2010-2011 to 2013-2014 influenza seasons. Daily illness diaries during ARI episodes collected information on symptoms and work attendance. RESULTS At least 1 ARI episode was reported by 50.4% of participants each study season. Overall, 94.6% of ill individuals reported working at least 1 day while symptomatic, resulting in an estimated 1.9 days of working while symptomatic and 0.5 days of absence during an ARI per participant season. In multivariable analysis, the adjusted relative risk of working while symptomatic was higher for physicians and lower for nurses relative to other HCWs. Participants were more likely to work if symptoms were less severe and on the illness onset date compared to subsequent days. The most cited reason for working while symptomatic was that symptoms were mild and the HCW felt well enough to work (67%). Participants were more likely to state that they could not afford to stay home if they did not have paid sick leave and were younger. CONCLUSIONS HCWs worked during most episodes of ARI, most often because their symptoms were mild. Further data are needed to understand how best to balance the costs and risks of absenteeism versus those associated with working while ill.
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8
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Healthcare-Associated Viral Infections: Considerations for Nosocomial Transmission and Infection Control. HEALTHCARE-ASSOCIATED INFECTIONS IN CHILDREN 2018. [PMCID: PMC7121921 DOI: 10.1007/978-3-319-98122-2_14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nosocomial and healthcare-associated viral infections are major contributors to patient morbidity and mortality, prolonged hospitalization, and increased healthcare costs in all pediatric age groups. Healthcare workers are also at risk of acquiring nosocomial viral infections, affecting their own health, as well as facilitating spread of the infection to other patients, their family, and the community. Healthcare-associated viral infections may occur in a variety of healthcare settings, including clinics, emergency centers, urgent care centers, procedure suites, operating rooms, hospital wards, nurseries, and intensive care units. In addition, non-patient care areas, such as the cafeteria, waiting areas, and playrooms may also be a source of viral infections that can spread in the healthcare setting. These infections may be device-related or transmitted via blood products or organ donation and respiratory droplets, through food including human milk, person to person, or via air ducts, fomites, and surfaces. They most commonly involve the respiratory and gastrointestinal tracts; however, all organ systems may potentially be involved. Both DNA and RNA viruses, either common or exotic, may contribute to healthcare-associated viral infections. Advances in molecular viral diagnostics have enabled rapid detection and routine surveillance for viral infections and now allow early identification of viruses. Prompt identification allows timely containment measures to minimize transmission to other patients or healthcare workers and avoids hospital, community, and global outbreaks.
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9
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Meyers L, Ginocchio CC, Faucett AN, Nolte FS, Gesteland PH, Leber A, Janowiak D, Donovan V, Dien Bard J, Spitzer S, Stellrecht KA, Salimnia H, Selvarangan R, Juretschko S, Daly JA, Wallentine JC, Lindsey K, Moore F, Reed SL, Aguero-Rosenfeld M, Fey PD, Storch GA, Melnick SJ, Robinson CC, Meredith JF, Cook CV, Nelson RK, Jones JD, Scarpino SV, Althouse BM, Ririe KM, Malin BA, Poritz MA. Automated Real-Time Collection of Pathogen-Specific Diagnostic Data: Syndromic Infectious Disease Epidemiology. JMIR Public Health Surveill 2018; 4:e59. [PMID: 29980501 PMCID: PMC6054708 DOI: 10.2196/publichealth.9876] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/29/2018] [Accepted: 04/12/2018] [Indexed: 12/22/2022] Open
Abstract
Background Health care and public health professionals rely on accurate, real-time monitoring of infectious diseases for outbreak preparedness and response. Early detection of outbreaks is improved by systems that are comprehensive and specific with respect to the pathogen but are rapid in reporting the data. It has proven difficult to implement these requirements on a large scale while maintaining patient privacy. Objective The aim of this study was to demonstrate the automated export, aggregation, and analysis of infectious disease diagnostic test results from clinical laboratories across the United States in a manner that protects patient confidentiality. We hypothesized that such a system could aid in monitoring the seasonal occurrence of respiratory pathogens and may have advantages with regard to scope and ease of reporting compared with existing surveillance systems. Methods We describe a system, BioFire Syndromic Trends, for rapid disease reporting that is syndrome-based but pathogen-specific. Deidentified patient test results from the BioFire FilmArray multiplex molecular diagnostic system are sent directly to a cloud database. Summaries of these data are displayed in near real time on the Syndromic Trends public website. We studied this dataset for the prevalence, seasonality, and coinfections of the 20 respiratory pathogens detected in over 362,000 patient samples acquired as a standard-of-care testing over the last 4 years from 20 clinical laboratories in the United States. Results The majority of pathogens show influenza-like seasonality, rhinovirus has fall and spring peaks, and adenovirus and the bacterial pathogens show constant detection over the year. The dataset can also be considered in an ecological framework; the viruses and bacteria detected by this test are parasites of a host (the human patient). Interestingly, the rate of pathogen codetections, on average 7.94% (28,741/362,101), matches predictions based on the relative abundance of organisms present. Conclusions Syndromic Trends preserves patient privacy by removing or obfuscating patient identifiers while still collecting much useful information about the bacterial and viral pathogens that they harbor. Test results are uploaded to the database within a few hours of completion compared with delays of up to 10 days for other diagnostic-based reporting systems. This work shows that the barriers to establishing epidemiology systems are no longer scientific and technical but rather administrative, involving questions of patient privacy and data ownership. We have demonstrated here that these barriers can be overcome. This first look at the resulting data stream suggests that Syndromic Trends will be able to provide high-resolution analysis of circulating respiratory pathogens and may aid in the detection of new outbreaks.
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Affiliation(s)
| | - Christine C Ginocchio
- BioFire Diagnostics, Salt Lake City, UT, United States.,bioMérieux USA, Durham, NC, United States.,Hofstra Northwell School of Medicine, Hempstead, NY, United States
| | | | - Frederick S Nolte
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Per H Gesteland
- Departments of Pediatrics and Biomedical Informatics, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Amy Leber
- Laboratory of Microbiology and Immunoserology, Department of Laboratory Medicine, Nationwide Children's Hospital, Columbus, OH, United States
| | - Diane Janowiak
- Department of Lab Operations, South Bend Medical Foundation, South Bend, IN, United States
| | - Virginia Donovan
- Department of Pathology, New York University Winthrop Hospital, Mineola, NY, United States
| | - Jennifer Dien Bard
- Clinical Microbiology and Virology Laboratory, Department of Pathology and Laboratory Medicine, Children's Hospital of Los Angeles, Los Angeles, CA, United States.,Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Silvia Spitzer
- Molecular Genetics Laboratory, Stony Brook University Medical Center, Stony Brook, NY, United States
| | - Kathleen A Stellrecht
- Department of Pathology and Laboratory Medicine, Albany Medical Center, Albany, NY, United States
| | - Hossein Salimnia
- Department of Pathology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Rangaraj Selvarangan
- Clinical Microbiology, Virology and Molecular Infectious Diseases Laboratory, Department of Pathology and Laboratory Medicine, Children's Mercy Hospital, Kansas City, MO, United States
| | - Stefan Juretschko
- Department of Pathology and Laboratory Medicine, Division of Infectious Disease Diagnostics, Northwell Health, Lake Success, NY, United States
| | - Judy A Daly
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Jeremy C Wallentine
- Department of Pathology, Intermountain Medical Center, Murray, UT, United States
| | - Kristy Lindsey
- Laboratory of Microbiology, University of Massachusetts Medical School-Baystate, Springfield, MA, United States
| | - Franklin Moore
- Laboratory of Microbiology, University of Massachusetts Medical School-Baystate, Springfield, MA, United States
| | - Sharon L Reed
- Department of Pathology and Medicine, Divisions of Clinical Pathology and Infectious Diseases, UC San Diego, San Diego, CA, United States
| | - Maria Aguero-Rosenfeld
- Department of Clinical Laboratories, New York University Langone Health, New York, NY, United States
| | - Paul D Fey
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Gregory A Storch
- Department of Pediatrics, Washington University, St. Louis, MO, United States
| | - Steve J Melnick
- Department of Pathology and Clinical Laboratories, Nicklaus Children's Hospital, Miami, FL, United States
| | - Christine C Robinson
- Department of Pathology and Laboratory Medicine, Microbiology/Virology Laboratory Section, Children's Hospital Colorado, Aurora, CO, United States
| | - Jennifer F Meredith
- Department of Laboratory Services, Microbiology Section, Greenville Health System, Greenville, SC, United States
| | | | | | - Jay D Jones
- BioFire Diagnostics, Salt Lake City, UT, United States
| | | | - Benjamin M Althouse
- University of Washington, Seattle, WA, United States.,New Mexico State University, Las Cruces, NM, United States
| | | | - Bradley A Malin
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University, Nashville, TN, United States
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Paul SP, Mukherjee A, McAllister T, Harvey MJ, Clayton BA, Turner PC. Respiratory-syncytial-virus- and rhinovirus-related bronchiolitis in children aged <2 years in an English district general hospital. J Hosp Infect 2017; 96:360-365. [PMID: 28559125 PMCID: PMC7114599 DOI: 10.1016/j.jhin.2017.04.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 04/26/2017] [Indexed: 10/26/2022]
Abstract
BACKGROUND Bronchiolitis is the most common reason for hospitalization in young children. In addition to respiratory syncytial virus (RSV), other viruses have been increasingly implicated. Guidance on testing has also changed. AIMS To compare clinicopathological outcomes in young children admitted with bronchiolitis due to RSV in comparison with rhinovirus (RV), and identify associated risk/epidemiological factors. METHODS Children aged less than two years admitted to hospital with a clinical diagnosis of bronchiolitis with positive results for either RSV or RV were included in this study. Polymerase-chain-reaction-negative cases using an extended respiratory virus panel served as a control group. Retrospective data were collected on sex, risk factors, respiratory support, intravenous fluids and antibiotics. Outcomes such as length of stay (LOS) and need for transfer to the high-dependency unit/paediatric intensive care unit were included. FINDINGS Two hundred and twenty-seven out of 437 nasopharyngeal aspirate samples were positive for either RSV (N = 162) or RV (N = 65). The median age of cases was three months and 75% had at least one risk factor. Risk factors were higher in the RV group (P = 0.004). RV accounted for the majority of cases outside the RSV season (P < 0.01). RV-associated bronchiolitis had a longer LOS (more than seven days) (P < 0.05) and increased need for chest X-rays and/or antibiotics (P < 0.05). Use of intravenous fluids and respiratory support were higher in the RV group, but the difference was not significant. CONCLUSIONS RV is the second most common pathogen associated with bronchiolitis and is isolated all year round. This may be important in those with risk factors resulting in prolonged LOS. Further research is necessary to establish the exact role of RV in this common condition, particularly outside the traditional RSV season.
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Affiliation(s)
- S P Paul
- Department of Paediatrics, Torbay Hospital, Torquay, UK.
| | - A Mukherjee
- Department of Paediatrics, Torbay Hospital, Torquay, UK
| | - T McAllister
- Peninsula College of Medicine and Dentistry, University of Exeter, UK; Peninsula College of Medicine and Dentistry, University of Plymouth, UK
| | - M J Harvey
- Peninsula College of Medicine and Dentistry, University of Exeter, UK; Peninsula College of Medicine and Dentistry, University of Plymouth, UK
| | - B A Clayton
- Peninsula College of Medicine and Dentistry, University of Exeter, UK; Peninsula College of Medicine and Dentistry, University of Plymouth, UK
| | - P C Turner
- Department of Medical Microbiology, Torbay Hospital, Torquay, UK
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11
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Defining the Risk and Associated Morbidity and Mortality of Severe Respiratory Syncytial Virus Infection Among Infants with Congenital Heart Disease. Infect Dis Ther 2017; 6:37-56. [PMID: 28070870 PMCID: PMC5336417 DOI: 10.1007/s40121-016-0142-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Indexed: 12/13/2022] Open
Abstract
Introduction The REGAL (RSV Evidence—a Geographical Archive of the Literature) series provide a comprehensive review of the published evidence in the field of respiratory syncytial virus (RSV) in Western countries over the last 20 years. This fourth publication covers the risk and burden of RSV infection in infants with congenital heart disease (CHD). Methods A systematic review was undertaken for articles published between January 1, 1995 and December 31, 2015 across PubMed, Embase, The Cochrane Library, and Clinicaltrials.gov. Studies reporting data for hospital visits/admissions for RSV infection among children with CHD as well as studies reporting RSV-associated morbidity, mortality, and healthcare costs were included. The focus was on children not receiving RSV prophylaxis. Study quality and strength of evidence (SOE) were graded using recognized criteria. Results A total of 1325 studies were identified of which 38 were included. CHD, in particular hemodynamically significant CHD, is an independent predictor for RSV hospitalization (RSVH) (high SOE). RSVH rates were generally high in young children (<4 years) with CHD (various classifications), varying between 14 and 357/1000 (high SOE). Children (<6 years) with RSV infection spent 4.4–14 days in hospital, with up to 53% requiring intensive care (high SOE). Infants (<2 years) with CHD had a more severe course of RSVH than those without CHD (high SOE). Case fatality rates of up to 3% were associated with RSV infection in children with CHD (high SOE). RSV infection in the perioperative period of corrective surgery and nosocomial RSV infection in intensive care units also represent important causes of morbidity (moderate SOE). Conclusion CHD poses a significant risk for RSVH and subsequent morbidity and mortality. RSV infection often complicates corrective heart surgery. To reduce the burden and improve outcomes, further research and specific studies are needed to determine the longer-term effects of severe RSV infection in young children with CHD. Electronic supplementary material The online version of this article (doi:10.1007/s40121-016-0142-x) contains supplementary material, which is available to authorized users.
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12
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Brote por virus respiratorio sincitial en la Unidad de Neonatología de un hospital de tercer nivel. An Pediatr (Barc) 2016; 85:119-27. [DOI: 10.1016/j.anpedi.2015.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/30/2015] [Accepted: 10/06/2015] [Indexed: 11/30/2022] Open
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13
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Moreno Parejo JC, Morillo García Á, Lozano Domínguez C, Carreño Ochoa C, Aznar Martín J, Conde Herrera M. Respiratory syncytial virus outbreak in a tertiary hospital Neonatal Intensive Care Unit. ANALES DE PEDIATRÍA (ENGLISH EDITION) 2016. [DOI: 10.1016/j.anpede.2015.10.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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14
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Drysdale SB, Green CA, Sande CJ. Best practice in the prevention and management of paediatric respiratory syncytial virus infection. Ther Adv Infect Dis 2016; 3:63-71. [PMID: 27034777 PMCID: PMC4784570 DOI: 10.1177/2049936116630243] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Respiratory syncytial virus (RSV) infection is ubiquitous with almost all infants having been infected by 2 years of age and lifelong repeated infections common. It is the second largest cause of mortality, after malaria, in infants outside the neonatal period and causes up to 200,000 deaths per year worldwide. RSV results in clinical syndromes that include upper respiratory tract infections, otitis media, bronchiolitis (up to 80% of cases) and lower respiratory tract disease including pneumonia and exacerbations of asthma or viral-induced wheeze. For the purposes of this review we will focus on RSV bronchiolitis in infants in whom the greatest disease burden lies. For infants requiring hospital admission, the identification of the causative respiratory virus is used to direct cohorting or isolation and infection control procedures to minimize nosocomial transmission. Nosocomial RSV infections are associated with poorer clinical outcomes, including increased mortality, the need for mechanical ventilation and longer length of hospital stay. Numerous clinical guidelines for the management of infants with bronchiolitis have been published, although none are specific for RSV bronchiolitis. Ribavirin is the only licensed drug for the specific treatment of RSV infection but due to drug toxicity and minimal clinical benefit it has not been recommended for routine clinical use. There is currently no licensed vaccine to prevent RSV infection but passive immunoprophylaxis using a monoclonal antibody, palivizumab, reduces the risk of hospitalization due to RSV infection by 39-78% in various high-risk infants predisposed to developing severe RSV disease. The current management of RSV bronchiolitis is purely supportive, with feeding support and oxygen supplementation until the infant immune system mounts a response capable of controlling the disease. The development of a successful treatment or prophylactic agent has the potential to revolutionize the care and outcome for severe RSV infections in the world's most vulnerable infants.
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15
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Leonard DG. Respiratory Infections. MOLECULAR PATHOLOGY IN CLINICAL PRACTICE 2016. [PMCID: PMC7123443 DOI: 10.1007/978-3-319-19674-9_52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The majority of respiratory tract infections (RTIs) are community acquired and are the single most common cause of physician office visits and among the most common causes of hospitalizations. The morbidity and mortality associated with RTIs are significant and the financial and social burden high due to lost time at work and school. The scope of clinical symptoms can significantly overlap among the respiratory pathogens, and the severity of disease can vary depending on patient age, underlying disease, and immune status, thereby leading to inaccurate presumptions about disease etiology. The rapid and accurate diagnosis of the causative agent of RTIs improves patient care, reduces morbidity and mortality, promotes effective hospital bed utilization and antibiotic stewardship, and reduces length of stay. This chapter focuses on the clinical utility, advantages, and disadvantages of viral and bacterial tests cleared by the Food and Drug Administration (FDA), and new promising technologies for the detection of bacterial agents of pneumonia currently in development or in US FDA clinical trials are briefly reviewed.
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Affiliation(s)
- Debra G.B. Leonard
- Pathology and Laboratory Medicine, University of Vermont College of Medicine and University of Vermont Medical Center, Burlington, Vermont USA
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16
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Comparison of respiratory virus shedding by conventional and molecular testing methods in patients with haematological malignancy. Clin Microbiol Infect 2015; 22:380.e1-380.e7. [PMID: 26711433 PMCID: PMC4994888 DOI: 10.1016/j.cmi.2015.12.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/30/2015] [Accepted: 12/08/2015] [Indexed: 11/25/2022]
Abstract
Respiratory viruses (RV) are a leading cause of infection-related morbidity and mortality for patients undergoing treatment for cancer. This analysis compared duration of RV shedding as detected by culture and PCR among patients in a high-risk oncology setting (adult patients with haematological malignancy and/or stem cell transplant and all paediatric oncology patients) and determined risk factors for extended shedding. RV infections due to influenza virus, parainfluenza virus (PIV), human metapneumovirus (HMPV) and respiratory syncytial virus (RSV) from two study periods—January 2009–September 2011 (culture-based testing) and September 2011–April 2013 (PCR-based testing)—were reviewed retrospectively. Data were collected from patients in whom re-testing for viral clearance was carried out within 5–30 days after the most recent test. During the study period 456 patients were diagnosed with RV infection, 265 by PCR and 191 by culture. The median range for duration of shedding (days) by culture and PCR, respectively, were as follows—influenza virus: 13 days (5–38 days) versus 14 days (5–58 days), p 0.5; RSV: 11 days (5–35 days) versus 16 days (5–50 days), p 0.001; PIV: 9 days (5–41 days) versus 17 days (5–45 days), p ≤0.0001; HMPV 10.5 days (5–29 days) versus 14 days (5–42 days), p 0.2. In multivariable analysis, age and underlying disease or transplant were not independently associated with extended shedding regardless of testing method. In high-risk oncology settings for respiratory illness due to RSV and PIV, the virus is detectable by PCR for a longer period of time than by culture and extended shedding is observed.
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17
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Takeyama A, Hashimoto K, Sato M, Kawashima R, Kawasaki Y, Hosoya M. Respiratory syncytial virus shedding by children hospitalized with lower respiratory tract infection. J Med Virol 2015; 88:938-46. [PMID: 26588816 DOI: 10.1002/jmv.24434] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2015] [Indexed: 11/08/2022]
Abstract
Children with respiratory syncytial virus (RSV) infection shed virus for variable periods. The aim of this study was to quantify the viral load in nasopharyngeal aspirates of children with RSV throughout their hospitalization. This study included 37 children who were admitted with a diagnosis of RSV infection based on a positive rapid diagnostic test. Nasopharyngeal aspirates were collected from patients every day, from admission to discharge. Viral detection and quantification were performed using quantitative real-time PCR. Of the 37 patients, RSV-A was detected in 29 and RSV-B in 6. Two patients were PCR-negative for any type of RSV. RSV-A was detected in 12 of 16 patients (75%) 6 days after admission. These patients shed detectable virus from days 1 to 12, and for a significantly longer period (mean 5.7 days) than RSV-B (mean 3.8 days) patients. Half of the RSV-A patients were also positive on day 14 following onset. RSV-A was detected in patients <12 months of age for significantly longer periods after onset than in patients ≥12 months of age. RSV-A viral load was negatively correlated with days from admission and days from onset. Because RSV shedding was frequently prolonged, the hospitalized children may have contracted RSV as a nosocomial infection. To prevent nosocomial RSV infections in hospital wards, healthcare workers must take appropriate infection control measures and provide adequate guidance on hand washing to the family of the patient.
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Affiliation(s)
- Aya Takeyama
- Department of Pediatrics, Soma General Hospital, Fukushima, Japan.,Department of Pediatrics, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Koichi Hashimoto
- Department of Pediatrics, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Masatoki Sato
- Department of Pediatrics, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Ryoko Kawashima
- Department of Pediatrics, Soma General Hospital, Fukushima, Japan
| | - Yukihiko Kawasaki
- Department of Pediatrics, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Mitsuaki Hosoya
- Department of Pediatrics, School of Medicine, Fukushima Medical University, Fukushima, Japan
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18
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Everard ML, Hind D, Ugonna K, Freeman J, Bradburn M, Dixon S, Maguire C, Cantrill H, Alexander J, Lenney W, McNamara P, Elphick H, Chetcuti PA, Moya EF, Powell C, Garside JP, Chadha LK, Kurian M, Lehal RS, MacFarlane PI, Cooper CL, Cross E. Saline in acute bronchiolitis RCT and economic evaluation: hypertonic saline in acute bronchiolitis - randomised controlled trial and systematic review. Health Technol Assess 2015; 19:1-130. [PMID: 26295732 PMCID: PMC4781529 DOI: 10.3310/hta19660] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Acute bronchiolitis is the most common cause of hospitalisation in infancy. Supportive care and oxygen are the cornerstones of management. A Cochrane review concluded that the use of nebulised 3% hypertonic saline (HS) may significantly reduce the duration of hospitalisation. OBJECTIVE To test the hypothesis that HS reduces the time to when infants were assessed as being fit for discharge, defined as in air with saturations of > 92% for 6 hours, by 25%. DESIGN Parallel-group, pragmatic randomised controlled trial, cost-utility analysis and systematic review. SETTING Ten UK hospitals. PARTICIPANTS Infants with acute bronchiolitis requiring oxygen therapy were allocated within 4 hours of admission. INTERVENTIONS Supportive care with oxygen as required, minimal handling and fluid administration as appropriate to the severity of the disease, 3% nebulised HS every ± 6 hours. MAIN OUTCOME MEASURES The trial primary outcome was time until the infant met objective discharge criteria. Secondary end points included time to discharge and adverse events. The costs analysed related to length of stay (LoS), readmissions, nebulised saline and other NHS resource use. Quality-adjusted life-years (QALYs) were estimated using an existing utility decrement derived for hospitalisation in children, together with the time spent in hospital in the trial. DATA SOURCES We searched MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials and other databases from inception or from 2010 onwards, searched ClinicalTrials.gov and other registries and hand-searched Chest, Paediatrics and Journal of Paediatrics to January 2015. REVIEW METHODS We included randomised/quasi-randomised trials which compared HS versus saline (± adjunct treatment) or no treatment. We used a fixed-effects model to combine mean differences for LoS and assessed statistical heterogeneity using the I (2) statistic. RESULTS The trial randomised 158 infants to HS (n = 141 analysed) and 159 to standard care (n = 149 analysed). There was no difference between the two arms in the time to being declared fit for discharge [median 76.6 vs. 75.9 hours, hazard ratio (HR) 0.95, 95% confidence interval (CI) 0.75 to 1.20] or to actual discharge (median 88.5 vs. 88.7 hours, HR 0.97, 95% CI 0.76 to 1.23). There was no difference in adverse events. One infant developed bradycardia with desaturation associated with HS. Mean hospital costs were £2595 and £2727 for the control and intervention groups, respectively (p = 0.657). Incremental QALYs were 0.0000175 (p = 0.757). An incremental cost-effectiveness ratio of £7.6M per QALY gained was not appreciably altered by sensitivity analyses. The systematic review comprised 15 trials (n = 1922) including our own. HS reduced the mean LoS by -0.36 days (95% CI -0.50 to -0.22 days). High levels of heterogeneity (I (2) = 78%) indicate that the result should be treated cautiously. CONCLUSIONS In this trial, HS had no clinical benefit on LoS or readiness for discharge and was not a cost-effective treatment for acute bronchiolitis. Claims that HS achieves small reductions in LoS must be treated with scepticism. FUTURE WORK Well-powered randomised controlled trials of high-flow oxygen are needed. STUDY REGISTRATION This study is registered as NCT01469845 and CRD42014007569. FUNDING DETAILS This project was funded by the NIHR Health Technology Assessment (HTA) programme and will be published in full in Health Technology Assessment; Vol. 19, No. 66. See the HTA programme website for further project information.
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Affiliation(s)
- Mark L Everard
- School of Paediatrics and Child Health (SPACH), University of Western Australia, Perth, WA, Australia
| | - Daniel Hind
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Kelechi Ugonna
- Department of Respiratory Medicine, Sheffield Children's NHS Foundation Trust, Sheffield, UK
| | - Jennifer Freeman
- Division of Epidemiology & Biostatistics, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Mike Bradburn
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Simon Dixon
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Chin Maguire
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Hannah Cantrill
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - John Alexander
- Children's Centre, Hospital of North Staffordshire NHS Trust, Stoke-on-Trent, UK
| | - Warren Lenney
- Institute for Science & Technology in Medicine, Keele University, Stoke-on-Trent, UK
| | - Paul McNamara
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
| | - Heather Elphick
- Department of Respiratory Medicine, Sheffield Children's NHS Foundation Trust, Sheffield, UK
| | - Philip Aj Chetcuti
- Children's Respiratory Medicine, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Eduardo F Moya
- Department of Paediatrics, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Colin Powell
- Department of Child Health, University Hospital of Wales, Cardiff, UK
| | - Jonathan P Garside
- Children's Outpatients, Calderdale and Huddersfield NHS Foundation Trust, Huddersfield, UK
| | - Lavleen Kumar Chadha
- Paediatrics, Doncaster and Bassetlaw Hospitals NHS Foundation Trust, Doncaster, UK
| | - Matthew Kurian
- Paediatrics, Doncaster and Bassetlaw Hospitals NHS Foundation Trust, Doncaster, UK
| | | | | | - Cindy L Cooper
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Elizabeth Cross
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
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19
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Homaira N, Sheils J, Stelzer-Braid S, Lui K, Oie JL, Snelling T, Jaffe A, Rawlinson W. Respiratory syncytial virus is present in the neonatal intensive care unit. J Med Virol 2015; 88:196-201. [PMID: 26174559 DOI: 10.1002/jmv.24325] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2015] [Indexed: 11/10/2022]
Abstract
Nosocomial transmission of respiratory syncytial virus (RSV) occurs in children within the neonatal intensive care unit (NICU). During peak community RSV transmission, three swabs were collected from the nose, hand and personal clothing of visitors and health care workers (HCW) in NICU once every week for eight weeks. Nasal swabs were collected from every third neonate and from any neonate clinically suspected of having a respiratory infection. Environmental sampling of high touch areas was done once during the study period. All swabs were tested for RSV using real time RT-PCR. There were 173 (519 total) and 109 (327 total) swabs, each of nose, hand and dress from 84 HCWs and 80 visitors respectively and 81 nasal swabs from 55 neonates collected. Thirty five environmental swabs from surfaces of the beds, side tables, counter tops, chairs, tables and computers were collected. Overall 1% of nasal swabs from each of HCWs, visitors and neonates, 4% of dress specimens from visitors and 9% of environmental swabs were positive for RSV-RNA. The results suggest that though the risk for RSV in the NICU remains low, personnel clothing are contaminated with RSV-RNA and may have a role in transmission.
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Affiliation(s)
- Nusrat Homaira
- School of Women's and Children's Health, UNSW, Randwick, Australia
| | - Joanne Sheils
- Department of Newborn Care, Royal Hospital for Women, Randwick, Australia
| | - Sacha Stelzer-Braid
- Serology and Virology Division (SAViD), SEALS Microbiology, Prince of Wales Hospital, Randwick, Australia.,School of Medical Sciences, UNSW, Australia
| | - Kei Lui
- School of Women's and Children's Health, UNSW, Randwick, Australia.,Department of Newborn Care, Royal Hospital for Women, Randwick, Australia
| | - Ju-Lee Oie
- Department of Newborn Care, Royal Hospital for Women, Randwick, Australia
| | - Tom Snelling
- Telethon Institute for Child Health Research, Institute for Child Health Research, University of Western, Australia
| | - Adam Jaffe
- School of Women's and Children's Health, UNSW, Randwick, Australia
| | - William Rawlinson
- Serology and Virology Division (SAViD), SEALS Microbiology, Prince of Wales Hospital, Randwick, Australia.,School of Medical Sciences, UNSW, Australia.,School of Biotechnology and Biomolecular Sciences, UNSW, Australia
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20
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Lee YI, Peng CC, Chiu NC, Huang DTN, Huang FY, Chi H. Risk factors associated with death in patients with severe respiratory syncytial virus infection. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2014; 49:737-742. [PMID: 25442868 DOI: 10.1016/j.jmii.2014.08.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 08/29/2014] [Accepted: 08/29/2014] [Indexed: 01/15/2023]
Abstract
BACKGROUND Respiratory syncytial virus (RSV) infection is an important cause of viral respiratory tract infection in children. This retrospective study describes the clinical characteristics of severe RSV infection and determines the risk factors for death. METHODS Patients were identified through a review of all patients discharged with a diagnosis of RSV lower respiratory tract infection and admitted to hospital in the pediatric intensive care unit (PICU) of a tertiary medical center between July 1, 2001 and June 30, 2010. The medical and demographic variables were recorded and analyzed. RESULTS The 186 RSV-positive patients admitted to the PICU had a median age of 5.3 months (interquartile range 2.3-12.4 months) and included 129 boys and 57 girls. Among them, 134 had at least one underlying disease: prematurity in 92, neurological disease in 57, bronchopulmonary dysplasia in 40, congenital heart disease in 26, hematological malignancies in 11, and Down's syndrome in nine patients. The 10 patients who died from RSV-related causes had a median age of 20.8 months (interquartile range 6.6-89.2 months) and all had a comorbidity. In multivariate analysis, the risk factors for death in severe RSV infection were Down's syndrome (odds ratio 7.20, 95% confidence interval 1.13-45.76; p = 0.036) and nosocomial RSV infection (odds ratio 4.46, 95% confidence interval 1.09-18.27; p = 0.038). CONCLUSION Down's syndrome and nosocomial RSV infection are significantly associated with death in severe RSV infections. Clinicians should be alert to these conditions.
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Affiliation(s)
- Yen-I Lee
- Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chun-Chih Peng
- Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Nan-Chang Chiu
- Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan; Mackay Junior College of Medicine, Nursing and Management, Taipei, Taiwan
| | - Daniel Tsung-Ning Huang
- Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan; Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Fu-Yuan Huang
- Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan
| | - Hsin Chi
- Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Mackay Junior College of Medicine, Nursing and Management, Taipei, Taiwan; Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan.
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21
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Ashkenazi-Hoffnung L, Dotan M, Livni G, Amir J, Bilavsky E. Nosocomial respiratory syncytial virus infections in the palivizumab-prophylaxis era with implications regarding high-risk infants. Am J Infect Control 2014; 42:991-5. [PMID: 25179332 DOI: 10.1016/j.ajic.2014.05.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 05/02/2014] [Accepted: 05/06/2014] [Indexed: 11/27/2022]
Abstract
BACKGROUND Although respiratory syncytial virus (RSV) infection continues to be a leading cause of infant hospitalization with a high transmission rate, recent data on nosocomial RSV infection are scarce. This study investigated the clinical and epidemiologic characteristics of nosocomial RSV infection in the palivizumab-prophylaxis era. METHODS The database of a tertiary pediatric medical center was searched for all hospitalized patients with RSV-positive respiratory disease in 2008-2010. Data were compared between patients with community-associated and nosocomial disease, and the qualification of the latter group for palivizumab was evaluated. RESULTS Of the 873 children identified, 30 (3.4%) had a nosocomial infection. This group accounted for 0.06% of all admissions during the study period. The nosocomial infection group had higher rates of preterm birth and severe underlying disease than the community-associated RSV group and a longer mean hospital stay. The nosocomial infection group also had higher rates of intensive care unit admission and mechanical ventilation. Although 73% had underlying conditions, most (80%) did not qualify for RSV immunoprophylaxis, including 7 children (23%) with immune deficiency. CONCLUSION Nosocomial RSV infection is a significant cause of morbidity among hospitalized infants, especially those with comorbidities and lengthy hospital stay, and is associated with a complicated clinical course. In addition to strict infection-control measures, extending palivizumab prophylaxis to additional selected high-risk populations should be considered.
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Affiliation(s)
- Liat Ashkenazi-Hoffnung
- Department of Pediatrics C, Schneider Children's Medical Center, Petach Tikva, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Miri Dotan
- Department of Pediatrics C, Schneider Children's Medical Center, Petach Tikva, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Gilat Livni
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Department of Pediatrics A, Schneider Children's Medical Center, Petach Tikva, Tel Aviv, Israel
| | - Jacob Amir
- Department of Pediatrics C, Schneider Children's Medical Center, Petach Tikva, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Efraim Bilavsky
- Department of Pediatrics C, Schneider Children's Medical Center, Petach Tikva, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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22
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de-Paris F, Beck C, de Souza Nunes L, Machado ABMP, Paiva RM, da Silva Menezes D, Pires MR, dos Santos RP, de Souza Kuchenbecker R, Barth AL. Evaluation of respiratory syncytial virus group A and B genotypes among nosocomial and community-acquired pediatric infections in Southern Brazil. Virol J 2014; 11:36. [PMID: 24564922 PMCID: PMC3996061 DOI: 10.1186/1743-422x-11-36] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 02/11/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Respiratory syncytial virus (RSV) is the main cause of lower respiratory tract illness in children worldwide. Molecular analyses show two distinct RSV groups (A and B) that comprise different genotypes. This variability contributes to the capacity of RSV to cause yearly outbreaks. These RSV genotypes circulate within the community and within hospital wards. RSV is currently the leading cause of nosocomial respiratory tract infections in pediatric populations. The aim of this study was to evaluate the G protein gene diversity of RSV amplicons. METHODS Nasopharyngeal aspirate samples were collected from children with nosocomial or community-acquired infections. Sixty-three RSV samples (21 nosocomial and 42 community-acquired) were evaluated and classified as RSV-A or RSV-B by real-time PCR. Sequencing of the second variable region of the G protein gene was performed to establish RSV phylogenetics. RESULTS We observed co-circulation of RSV-A and RSV-B, with RSV-A as the predominant group. All nosocomial and community-acquired RSV-A samples were from the same phylogenetic group, comprising the NA1 genotype, and all RSV-B samples (nosocomial and community-acquired) were of the BA4 genotype. Therefore, in both RSV groups (nosocomial and community-acquired), the isolates belonged to only one genotype in circulation. CONCLUSIONS This is the first study to describe circulation of the NA1 RSV genotype in Brazil. Furthermore, this study showed that the BA4 genotype remains in circulation. Deciphering worldwide RSV genetic variability will aid vaccine design and development.
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Affiliation(s)
- Fernanda de-Paris
- Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Medicina, Programa de Pós-graduação em Ciências Médicas, Rua Ramiro Barcelos 2400, Porto Alegre, RS, Brazil.
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A model of the costs of community and nosocomial pediatric respiratory syncytial virus infections in Canadian hospitals. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2014; 24:22-6. [PMID: 24421788 DOI: 10.1155/2013/916769] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Approximately one in 10 hospitalized patients will acquire a nosocomial infection (NI) after admission to hospital, of which 71% are due to respiratory viruses, including the respiratory syncytial virus (RSV). NIs are concerning and lead to prolonged hospitalizations. The economics of NIs are typically described in generalized terms and specific cost data are lacking. OBJECTIVE To develop an evidence-based model for predicting the risk and cost of nosocomial RSV infection in pediatric settings. METHODS A model was developed, from a Canadian perspective, to capture all costs related to an RSV infection hospitalization, including the risk and cost of an NI, diagnostic testing and infection control. All data inputs were derived from published literature. Deterministic sensitivity analyses were performed to evaluate the uncertainty associated with the estimates and to explore the impact of changes to key variables. A probabilistic sensitivity analysis was performed to estimate a confidence interval for the overall cost estimate. RESULTS The estimated cost of nosocomial RSV infection adds approximately 30.5% to the hospitalization costs for the treatment of community-acquired severe RSV infection. The net benefits of the prevention activities were estimated to be equivalent to 9% of the total RSV-related costs. Changes in the estimated hospital infection transmission rates did not have a significant impact on the base-case estimate. CONCLUSIONS The risk and cost of nosocomial RSV infection contributes to the overall burden of RSV. The present model, which was developed to estimate this burden, can be adapted to other countries with different disease epidemiology, costs and hospital infection transmission rates.
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Abstract
Respiratory syncytial virus is a highly infectious virus that commonly causes bronchiolitis and leads to high morbidity and a low, but important, incidence of mortality. Supportive therapy is the foundation of management. Hydration/nutrition and respiratory support are important evidence-based interventions. For children with severe disease, continuous positive airway pressure or mechanical ventilation may be necessary. Ribavirin may be used for treatment of patients with severe disease. Palivizumab provides important ongoing immunoprophylaxis during epidemic months for high-risk infants. Caregiver education and incorporating an explanation of all therapies and anticipatory guidance, including strategies for reducing the risk of infection, are vital.
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Liu X, Qin X, Xiang Y, Liu H, Gao G, Qin L, Liu C, Qu X. Progressive changes in inflammatory and matrix adherence of bronchial epithelial cells with persistent respiratory syncytial virus (RSV) infection (progressive changes in RSV infection). Int J Mol Sci 2013; 14:18024-40. [PMID: 24005865 PMCID: PMC3794767 DOI: 10.3390/ijms140918024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Revised: 08/16/2013] [Accepted: 08/21/2013] [Indexed: 12/11/2022] Open
Abstract
In addition to the acute manifestations of respiratory syncytial virus (RSV), persistent infection may be associated with long-term complications in the development of chronic respiratory diseases. To understand the mechanisms underlying RSV-induced long-term consequences, we established an in vitro RSV (strain A2) infection model using human bronchial epithelial (16HBE) cells that persists over four generations and analyzed cell inflammation and matrix adherence. Cells infected with RSV at multiplicity of infection (MOI) 0.0067 experienced cytolytic or abortive infections in the second generation (G2) or G3 but mostly survived up to G4. Cell morphology, leukocyte and matrix adherence of the cells did not change in G1 or G2, but subsequently, leukocyte adherence and cytokine/chemokine secretion, partially mediated by intercellular adhesion molecule-1 (ICAM-1), increased drastically, and matrix adherence, partially mediated by E-cadherin, decreased until the cells died. Tumor necrosis factor-α (TNF-α) secretion was inhibited by ICAM-1 antibody in infected-16HBE cells, suggesting that positive feedback between TNF-α secretion and ICAM-1 expression may be significant in exacerbated inflammation. These data demonstrate the susceptibility of 16HBE cells to RSV and their capacity to produce long-term progressive RSV infection, which may contribute to inflammation mobilization and epithelial shedding.
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Affiliation(s)
- Xiaoai Liu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha 410078, China; E-Mails: (X.L.); (Y.X.); (H.L.); (G.G.); (C.L.); (X.Q.)
- Department of Physiology, Guangzhou Medical University, Guangzhou 510182, China
| | - Xiaoqun Qin
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha 410078, China; E-Mails: (X.L.); (Y.X.); (H.L.); (G.G.); (C.L.); (X.Q.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-731-8235-5051; Fax: +86-731-8235-5056
| | - Yang Xiang
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha 410078, China; E-Mails: (X.L.); (Y.X.); (H.L.); (G.G.); (C.L.); (X.Q.)
| | - Huijun Liu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha 410078, China; E-Mails: (X.L.); (Y.X.); (H.L.); (G.G.); (C.L.); (X.Q.)
| | - Ge Gao
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha 410078, China; E-Mails: (X.L.); (Y.X.); (H.L.); (G.G.); (C.L.); (X.Q.)
| | - Ling Qin
- Respiratory Department, Xiangya Hospital, Central South University, Changsha 410078, China; E-Mail:
| | - Chi Liu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha 410078, China; E-Mails: (X.L.); (Y.X.); (H.L.); (G.G.); (C.L.); (X.Q.)
| | - Xiangping Qu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha 410078, China; E-Mails: (X.L.); (Y.X.); (H.L.); (G.G.); (C.L.); (X.Q.)
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Risk factors and containment of respiratory syncytial virus outbreak in a hematology and transplant unit. Bone Marrow Transplant 2013; 48:1548-53. [DOI: 10.1038/bmt.2013.94] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 05/10/2013] [Accepted: 05/14/2013] [Indexed: 11/08/2022]
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El Kholy AA, Mostafa NA, El-Sherbini SA, Ali AA, Ismail RI, Magdy RI, Hamdy MS, Soliman MS. Morbidity and outcome of severe respiratory syncytial virus infection. Pediatr Int 2013; 55:283-8. [PMID: 23316763 DOI: 10.1111/ped.12051] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 12/11/2012] [Accepted: 01/07/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Respiratory syncytial virus (RSV) is the main cause of severe acute respiratory infection (SARI) in infants and young children. This study aimed to identify risk factors for intensive care unit (ICU) admission, prolonged length of stay (PLOS), and mortality in patients hospitalized with SARI caused by RSV. METHODS This prospective cohort study included children hospitalized with SARI (according to the World Health Organization definition) and whose laboratory results proved RSV infection during the period from February 2010 to May 2011. RESULTS Out of 240 enrolled patients, 24 patients (10%) were admitted to the ICU, 57 patients (24.3%) had a PLOS of >9 days and 12 patients (5%) died. The presence of cyanosis (P = 0.000; OR, 351.7) and lung consolidation (P = 0.006, OR, 9.3) were independent risk factors associated with ICU admission. The need for ICU admission (P = 0.000; OR, 6.1) and lung consolidation (P = 0.008, OR, 2.46) were independent risk factors associated with PLOS. The presence of an underlying congenital heart disease (P = 0.03, OR, 18.3), thrombocytopenia (P = 0.04, OR, 32.86) and mechanical ventilation (P = 0.000; OR, 449.4) were the only independent risk factors associated with mortality in our study. CONCLUSIONS Early recognition of risk factors for complicated RSV disease on admission prompts early interventions and early ICU admissions for these children.
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Affiliation(s)
- Amani A El Kholy
- Department of Clinical and Chemical Pathology, Cairo University, Cairo, Egypt
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Esbenshade JC, Edwards KM, Esbenshade AJ, Rodriguez VE, Talbot HK, Joseph MF, Nwosu SK, Chappell JD, Gern JE, Williams JV, Talbot TR. Respiratory virus shedding in a cohort of on-duty healthcare workers undergoing prospective surveillance. Infect Control Hosp Epidemiol 2013; 34:373-8. [PMID: 23466910 DOI: 10.1086/669857] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Healthcare-associated transmission of respiratory viruses is a concerning patient safety issue. DESIGN Surveillance for influenza virus among a cohort of healthcare workers (HCWs) was conducted in a tertiary care children's hospital from November 2009 through April 2010 using biweekly nasal swab specimen collection. If a subject reported respiratory symptoms, an additional specimen was collected. Specimens from ill HCWs and a randomly selected sample from asymptomatic subjects were tested for additional respiratory viruses by multiplex polymerase chain reaction (PCR). RESULTS A total of 1,404 nasal swab specimens were collected from 170 enrolled subjects. Influenza circulated at very low levels during the surveillance period, and 74.2% of subjects received influenza vaccination. Influenza virus was not detected in any specimen. Multiplex respiratory virus PCR analysis of all 119 specimens from symptomatic subjects and 200 specimens from asymptomatic subjects yielded a total of 42 positive specimens, including 7 (16.7%) in asymptomatic subjects. Viral shedding was associated with report of any symptom (odds ratio [OR], 13.06 [95% confidence interval, 5.45-31.28]; [Formula: see text]) and younger age (OR, 0.96 [95% confidence interval, 0.92-0.99]; [Formula: see text]) when controlled for sex and occupation of physician or nurse. After the surveillance period, 46% of subjects reported working while ill with an influenza-like illness during the previous influenza season. CONCLUSIONS In this cohort, HCWs working while ill was common, as was viral shedding among those with symptoms. Asymptomatic viral shedding was infrequent but did occur. HCWs should refrain from patient care duties while ill, and staffing contingencies should accommodate them.
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Affiliation(s)
- Jennifer C Esbenshade
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
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Simon A, Prusseit J, Müller A. Respiratory syncytial virus infection in children with neuromuscular impairment. Open Microbiol J 2011; 5:155-8. [PMID: 22262988 PMCID: PMC3258658 DOI: 10.2174/1874285801105010155] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 10/12/2011] [Accepted: 10/27/2011] [Indexed: 12/20/2022] Open
Abstract
Clinically obvious reasons why children with neurological impairment (NMI) may be more severely affected in case of a viral respiratory tract infection include reduced vital capacity due to muscular weakness or spastic scoliosis, disturbed clearance of respiratory excretions (weak coughing and dysphagia), inability to comply actively with physiotherapeutic interventions, recurrent micro-aspirations (gastroesophageal reflux disease, vomiting related to coughing), a history of frequent exposure to antibiotics and health care institutions, colonization with resistant pathogens, impaired immunologic defence mechanisms due to severe malnutrition and cachexia, and early clinical deterioration in case of high fever with metabolic acidosis and hypercapnia, and maybe associated seizures or febrile convulsions. Data from the literature suggests that in all children with NMI, who have to be hospitalized with severe clinical deterioration due to an airway infection, at least one specimen of nasopharyngeal secretions should be sent as soon as possible to a virologic laboratory to detect viral pathogens. Children with severe NMI and those mechanically ventilated for other reasons being hospitalized during the RSV season must be strictly protected against nosocomial RSV infection by means of standard and droplet precautions. Finally, children with severe NMI and age below 24 months of life should receive passive immunization with palivizumab following international recommendations.
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Affiliation(s)
- Arne Simon
- University of Saarland, Paediatric Oncology and Haematology, Infectious Diseases Kirrberger Str., Building 9, 66421 Homburg/Saar, Germany
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Wright M, Piedimonte G. Respiratory syncytial virus prevention and therapy: past, present, and future. Pediatr Pulmonol 2011; 46:324-47. [PMID: 21438168 DOI: 10.1002/ppul.21377] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Revised: 08/24/2010] [Accepted: 08/29/2010] [Indexed: 11/06/2022]
Abstract
Respiratory syncytial virus (RSV) is the most common respiratory pathogen in infants and young children worldwide. More than 50 years after its discovery, and despite relentless attempts to identify pharmacological therapies to improve the clinical course and outcomes of this disease, the most effective therapy remains supportive care. Although the quest for a safe and effective vaccine remains unsuccessful, pediatricians practicing during the past decade have been able to protect at least the more vulnerable patients with safe and effective passive prophylaxis. This review summarizes the history, microbiology, epidemiology, pathophysiology, and clinical manifestations of this infection in order to provide the reader with the background information necessary to fully appreciate the many challenges presented by the clinical management of young children with bronchiolitis. The last part of this article attempts an evidence-based review of the pharmacologic strategies currently available and those being evaluated, intentionally omitting highly experimental approaches not yet tested in clinical trials and, therefore, not likely to become available in the foreseeable future.
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Affiliation(s)
- Melvin Wright
- Department of Pediatrics and Pediatric Research Institute, West Virginia University School of Medicine, Morgantown, West Virginia 26506-9214, USA
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Use of palivizumab and infection control measures to control an outbreak of respiratory syncytial virus in a neonatal intensive care unit confirmed by real-time polymerase chain reaction. J Hosp Infect 2011; 77:338-42. [PMID: 21330007 DOI: 10.1016/j.jhin.2010.12.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 12/14/2010] [Indexed: 10/18/2022]
Abstract
Respiratory syncytial virus (RSV) is a potentially life-threatening infection in premature infants. We report an outbreak involving four infants in the neonatal intensive care unit (NICU) of our hospital that occurred in February 2010. RSV A infection was confirmed by real-time polymerase chain reaction. Palivizumab was administered to all infants in the NICU. There were no additional symptomatic cases and repeat RSV surveillance confirmed that there was no further cross-transmission within the unit. The outbreak highlighted the infection control challenge of very high bed occupancy in the unit and the usefulness of molecular methods in facilitating detection and management.
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Simon A, Tutdibi E, von Müller L, Gortner L. Beatmungsassoziierte Pneumonie bei Kindern. Monatsschr Kinderheilkd 2011. [DOI: 10.1007/s00112-010-2303-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Health Care–Associated Infection in the Pediatric Intensive Care Unit. PEDIATRIC CRITICAL CARE 2011:1349-1363. [PMCID: PMC7152412 DOI: 10.1016/b978-0-323-07307-3.10097-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
•Handwashing is the most important means of preventing nosocomial infection. Each pediatric intensive care unit should develop programs to increase compliance with hand hygiene. •Nonessential invasive devices should be removed. Establish routines that require individual patient evaluation of device use daily. •Antimicrobial stewardship aims to minimize overexposure and unnecessary use of broad-spectrum antibiotics. Antibiotic-resistant bacteria are an increasing concern as a cause of hospital-acquired infection, requiring a multipronged approach to control that includes adherence to isolation procedures, appropriate use of antibiotics, educational interventions, prescribing guidelines, and restriction of the use of some antibiotics. •A comprehensive infection prevention and control program allied with organizational quality and patient safety programs is an essential strategy for minimizing hospital-acquired infections. Critical care teams should establish strong collaborative partnerships with the infection prevention and control service. •Parents and visitors should be made partners of the infection control team to help prevent infection in their children.
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van de Pol AC, Rossen JWA, Wolfs TFW, Breteler EK, Kimpen JLL, van Loon AM, Jansen NJG. Transmission of respiratory syncytial virus at the paediatric intensive-care unit: a prospective study using real-time PCR. Clin Microbiol Infect 2009; 16:488-90. [PMID: 19523052 DOI: 10.1111/j.1469-0691.2009.02854.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Transmission of respiratory syncytial virus (RSV) from children with lower respiratory tract infection (LRTI) at a paediatric intensive-care unit (PICU) was examined using a highly sensitive real-time PCR. Twenty-four children with RSV LRTI were admitted during the study period (total days of potential transmission: 239). Forty-eight RSV-negative patients were followed up for RSV acquisition every 5 days (total days of exposure: 683). No single RSV transmission was documented with this highly sensitive diagnostic method. Therefore, routine infection control measures of LRTI patients seem to be adequate to prevent RSV transmission at the PICU.
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Affiliation(s)
- A C van de Pol
- Department of Paediatrics, Wilhelmina Children's Hospital, University Medical Centre Utrecht, The Netherlands.
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Abstract
The incidence of nosocomial respiratory syncytial virus (RSV) infection in different areas of the world is not well known. However, it is clear that RSV infection of hospitalized infants with congenital heart disease or following preterm birth is highly relevant. Nosocomial RSV infection in these high-risk group infants often follows a severe course of disease, even resulting in mortality. Transmission of RSV mainly occurs through direct contact, but not through inhalation. Consequently, prevention of nosocomial RSV infection should aim to prevent direct contact between non-infected infants and RSV-infected people. Evidence of the role of gowns, masks and gloves is discussed. The effect and safety of cohorting RSV-infected infants is reviewed. International guidelines with respect to RSV prevention and outbreak management are analysed.
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von Renesse A, Schildgen O, Klinkenberg D, Müller A, von Moers A, Simon A. Respiratory syncytial virus infection in children admitted to hospital but ventilated mechanically for other reasons. J Med Virol 2008; 81:160-6. [PMID: 19031467 DOI: 10.1002/jmv.21367] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
One thousand five hundred sixty-eight RSV infections were documented prospectively in 1,541 pediatric patients. Of these, 20 (1.3%) had acquired the RSV infection while treated by mechanical ventilation for reasons other than the actual RSV infection (group ventilated mechanically). The clinical characteristics of children who were infected with respiratory syncytial virus (RSV) infection while ventilated mechanically for other reasons are described and compared with a matched control group. Sixty percent of the group ventilated mechanically had at least one additional risk factor for a severe course of infection (prematurity 50%, chronic lung disease 20%, congenital heart disease 35%, immunodeficiency 20%). The median age at diagnosis in the group ventilated mechanically was 4.2 months. The matched pairs analysis (group ventilated mechanically vs. control group) revealed a higher proportion of patients with hypoxemia and apnoea in the group ventilated mechanically; more patients in the control group showed symptoms of airway obstruction (wheezing). At least one chest radiography was performed in 95% of the patients (n = 19) in the group ventilated mechanically versus 45% (n = 9) in the control group (P = 0.001). The frequency of pneumonia was 40% in the group ventilated mechanically and 20% in the control group. Despite existing consensus recommendations, only two patients (10%) of the group ventilated mechanically had received palivizumab previously. Significantly more patients in the group ventilated mechanically received antibiotic treatment (85% vs. 45%, P = 0.008), and attributable mortality was higher in the group ventilated mechanically (15% [n = 3] vs. 0% in the control group, P = 0.231). Children treated by long term mechanical ventilation may acquire RSV infection by transmission by droplets or caregivers and face an increased risk of a severe course of RSV infection. The low rate of immunoprophylaxis in this particular risk group should be improved.
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Calvo C, García-García ML, Blanco C, Santos MJ, Pozo F, Pérez-Breña P, Casas I. Human bocavirus infection in a neonatal intensive care unit. J Infect 2008; 57:269-71. [PMID: 18649946 PMCID: PMC7132415 DOI: 10.1016/j.jinf.2008.06.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2007] [Revised: 05/08/2008] [Accepted: 06/06/2008] [Indexed: 11/28/2022]
Abstract
Human bocavirus (HBoV) plays a non-insignificant role as a pathogen in respiratory tract diseases in the pediatric population, especially in infants younger than 2 years of age. In this paper, we have described two cases of a possible nosocomial infection in a neonatal intensive care unit being HBoV the sole detected respiratory virus in clinical samples.
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Affiliation(s)
- C Calvo
- Pediatrics Department, Severo Ochoa Hospital, Madrid, Spain.
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Carbonell-Estrany X, Bont L, Doering G, Gouyon JB, Lanari M. Clinical relevance of prevention of respiratory syncytial virus lower respiratory tract infection in preterm infants born between 33 and 35 weeks gestational age. Eur J Clin Microbiol Infect Dis 2008; 27:891-9. [PMID: 18629558 DOI: 10.1007/s10096-008-0520-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2008] [Accepted: 04/01/2008] [Indexed: 01/19/2023]
Abstract
Premature infants are vulnerable to severe respiratory syncytial virus (RSV) lower respiratory tract infection (LRTI) resulting in hospitalisation and the potential for longer-term respiratory morbidity. Whilst the severity and consequence of RSV LRTI are generally accepted and recognised in infants born <or=32 weeks gestational age (GA), there is less acknowledgment of the potential consequences in infants born 33-35 weeks GA. However, there is a growing body of evidence suggesting that infants born between 33 and 35 weeks GA may be equally at risk for RSV LRTI as infants born <32 weeks GA. Interrupted lung development and an immature immune system have been linked with an increased susceptibility for RSV LRTI, along with other environmental, social, and physiological risk factors. Currently, the only effective method of preventing RSV LRTI is prophylaxis with palivizumab. Often with limited healthcare resources, identifying infants at greatest risk of RSV LRTI who would potentially benefit most from prophylaxis is highly desirable, particularly in the 33-35-week GA group. The purpose of this article is to examine the causes and consequences of RSV LRTI in infants born 33-35 weeks GA, and look at the potential for using risk factors to identify high risk infants and, thereby, optimise prophylaxis. The causes and consequences of RSV LRTI in infants born 33-35 weeks GAA were determined via literature review. A number of underlying risk factors that significantly increase the risk of severe RSV LRTI and subsequent hospitalisation in this group of infants have been identified, most notably from the FLIP and PICNIC studies. A European predictive model based on the risk factors in the FLIP study has recently been developed and validated, which will aid identification of infants born between 33 and 35 weeks GA with the highest risk of RSV hospitalisation. Implementation of this model and prophylaxis of infants born between 33 and 35 weeks GA should be a national or regional decision, taken in perspective of other public health needs.
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Affiliation(s)
- X Carbonell-Estrany
- Hospital Clínic, Institut Clínic de Ginecologia Obstetricia i Neonatologia, Neonatology Service, Barcelona, Spain.
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Simon A, Müller A, Khurana K, Engelhart S, Exner M, Schildgen O, Eis-Hübinger AM, Kamin W, Schaible T, Wadas K, Ammann RA, Wilkesmann A. Nosocomial infection: A risk factor for a complicated course in children with respiratory syncytial virus infection – Results from a prospective multicenter German surveillance study. Int J Hyg Environ Health 2008; 211:241-50. [PMID: 17869579 DOI: 10.1016/j.ijheh.2007.07.020] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2006] [Revised: 05/03/2007] [Accepted: 07/09/2007] [Indexed: 11/28/2022]
Abstract
BACKGROUND Nosocomially acquired respiratory syncytial virus infections (RSV-NI) may cause serious problems in hospitalized paediatric patients. Hitherto, prospectively collected representative data on RSV-NI from multicenter studies in Germany are limited. METHODS The DMS RSV Ped database was designed for the prospective multicenter documentation and analysis of clinically relevant aspects of the management of inpatients with RSV-infection. The study covered six consecutive seasons (1999-2005); the surveillance took place in 14 paediatric hospitals in Germany. RESULTS Of the 1568 prospectively documented RSV-infections, 6% (n=90) were NI and 94% (n=1478) were community acquired (CA). A significantly higher proportion in the NI group displayed additional risk factors like prematurity, chronic lung disease, mechanical ventilation (med. history), congenital heart disease, and neuromuscular impairment. Of all NI, 55% occurred in preterms (30.6% of all RSV-infections in preterms with severe chronic lung disease of prematurity were NI). Illness severity as well as the total mortality, but not the attributable mortality was significantly higher in the NI group. In the multivariate analysis, NI was significantly associated with the combined outcome 'complicated course of disease'. CONCLUSION This is the first prospective multicenter study from Germany, which confirms the increased risk of a severe clinical course in nosocomially acquired RSV-infection. Of great concern is the high rate of (preventable) NI in preterms, in particular in those with severe chronic lung disease or with mechanical ventilation due to other reasons.
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Affiliation(s)
- Arne Simon
- Department of Paediatric Hematology and Oncology, Children's Hospital Medical Center, University of Bonn, Adenauerallee119, 53113 Bonn, Germany.
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Abstract
OBJECTIVE To review the literature on respiratory syncytial virus (RSV) as a cause of nosocomial infections (NI) on neonatal intensive care units (NICUs) and pediatric wards, and the effectiveness of various containment strategies. STUDY DESIGN We conducted a literature review to define characteristics of RSV NI, and to evaluate the relative effectiveness of various infection containment programs, including the use of palivizumab on the reported incidence of RSV NI on NICUs and pediatric wards. RESULT Highly variable rates of RSV NI have not significantly changed since RSV was first identified. The evaluation of the effectiveness of containment strategies has relied on before/after study designs. Focus on rapid patient diagnosis, compliance of acceptable handwashing techniques and cohorting of patients and staff appears to form the backbone of most prevention and containment programs. When these or other measures have failed, the administration of palivizumab has been useful in halting the spread of RSV NI in children. CONCLUSION RSV NI continues to be prevalent in the NICU despite adoption of infection control programs. Preventive measures should be employed to lower the risk of RSV NI and, if identified, appropriate containment strategies should be rapidly implemented.
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41
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Maki DG, Crnich CJ, Safdar N. Nosocomial Infection in the Intensive Care Unit. Crit Care Med 2008. [PMID: 18431302 PMCID: PMC7170205 DOI: 10.1016/b978-032304841-5.50053-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Sensitive commercial NASBA assay for the detection of respiratory syncytial virus in clinical specimen. PLoS One 2007; 2:e1357. [PMID: 18159240 PMCID: PMC2137935 DOI: 10.1371/journal.pone.0001357] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2007] [Accepted: 11/19/2007] [Indexed: 11/29/2022] Open
Abstract
The aim of the study was to evaluate the usability of three diagnostic procedures for the detection of respiratory syncytial virus in clinical samples. Therefore, the FDA cleared CE marked NOW® RSV ELISA, the NucliSENS® EasyQ RSV A+B NASBA, and a literature based inhouse RT-PCR protocol were compared for their relative sensitivities. Thereby, NASBA turned out to be the most sensitive method with a total number of 80 RSV positive samples out of a cohort of 251 nasopharyngeal washings from patients suffering from clinical symptoms, followed by the inhouse RT-PCR (62/251) and ELISA (52/251). Thus, NASBA may serve as a rapid and highly sensitive alternative for RSV diagnostics.
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Siegel JD, Rhinehart E, Jackson M, Chiarello L. 2007 Guideline for Isolation Precautions: Preventing Transmission of Infectious Agents in Health Care Settings. Am J Infect Control 2007; 35:S65-164. [PMID: 18068815 PMCID: PMC7119119 DOI: 10.1016/j.ajic.2007.10.007] [Citation(s) in RCA: 1633] [Impact Index Per Article: 96.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Simon A, Ammann RA, Wilkesmann A, Eis-Hübinger AM, Schildgen O, Weimann E, Peltner HU, Seiffert P, Süss-Grafeo A, Groothuis JR, Liese J, Pallacks R, Müller A. Respiratory syncytial virus infection in 406 hospitalized premature infants: results from a prospective German multicentre database. Eur J Pediatr 2007; 166:1273-83. [PMID: 17943313 DOI: 10.1007/s00431-007-0426-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Accepted: 01/15/2007] [Indexed: 10/23/2022]
Abstract
Premature birth, chronic lung disease of prematurity (CLD), congenital heart disease and immunodeficiency predispose to a higher morbidity and mortality in respiratory syncytial virus (RSV) infection. This study describes the preterms hospitalised with RSV infection from the prospective German DSM RSV Paed database. The DMS RSV Paed database was designed for the prospective multicentre documentation and analysis of clinically relevant aspects of the management of inpatients with RSV infection. This study covers six consecutive RSV seasons (1999-2005); the surveillance took place in 14 paediatric hospitals in Germany. Of the 1,568 prospectively documented RSV infections, 26% (n=406) were observed in preterms [vs. 1,162 children born at term (74%)] and 3% (n=50) had CLD, of which 49 had received treatment in the last 6 months ('CLDplus'). A significantly higher proportion in the preterm group had congenital heart disease, nosocomial infection, and neuromuscular impairment. There were significantly more children older than 24 months in the preterm group. The attributable mortality was 0.2% (n=2) in children born at term vs. 1.2% (n=5) in the preterm group (p=0.015) [preterm plus CLD 8.0% (n=4 of 50); McIntosh grade 1, 8.6% (n=3 of 35) and McIntosh Grade 4, 15% (n=3 of 20)]. Eight patients were categorized as 'palivizumab failures'. In the multivariate analysis, premature birth, CLD(plus), and nosocomial infection were significantly and independently associated with the combined outcome 'complicated course of disease'. In conclusion, this is the first prospective multicentre study from Germany that confirms the increased risk for severe RSV disease in preterms, in particular in those with CLD treated in the last 6 months before the onset of the infection. From the perspective of our results, the statements of the German Society of Paediatric Infectious Diseases considering the use of passive immunisation (2003) seem reasonable.
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Affiliation(s)
- Arne Simon
- Department of Pediatric Hematology and Oncology, Children's Hospital Medical Center, University of Bonn, Adenauerallee 119, 53113 Bonn, Germany.
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Harris JAS, Huskins WC, Langley JM, Siegel JD. Health care epidemiology perspective on the October 2006 recommendations of the Subcommittee on Diagnosis and Management of Bronchiolitis. Pediatrics 2007; 120:890-2. [PMID: 17908774 DOI: 10.1542/peds.2007-1305] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Jo-Ann S Harris
- Department of Pediatrics, University of Kansas Medical Center, Kansas City, Kansas, USA.
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Wilkesmann A, Ammann RA, Schildgen O, Eis-Hübinger AM, Müller A, Seidenberg J, Stephan V, Rieger C, Herting E, Wygold T, Hornschuh F, Groothuis JR, Simon A. Hospitalized children with respiratory syncytial virus infection and neuromuscular impairment face an increased risk of a complicated course. Pediatr Infect Dis J 2007; 26:485-91. [PMID: 17529864 DOI: 10.1097/inf.0b013e31805d01e3] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Respiratory syncytial virus (RSV) infection is an important cause of viral respiratory tract infection in children. In contrast to other confirmed risk factors that predispose to a higher morbidity and mortality, the particular risk of a preexisting neuromuscular impairment (NMI) in hospitalized children with RSV infection has not been prospectively studied in a multicenter trial. METHODS The DMS RSV Paed database was designed for the prospective multicenter documentation and analysis of all clinically relevant aspects of the management of inpatients with RSV infection. Patients with clinically relevant NMI were identified according to the specific comments of the attending physicians and compared with those without NMI. RESULTS This study covers 6 consecutive seasons; the surveillance took place in 14 pediatric hospitals in Germany from 1999 to 2005. In total, 1568 RSV infections were prospectively documented in 1541 pediatric patients. Of these, 73 (4.7%) patients displayed a clinically relevant NMI; 41 (56%) NMI patients had at least 1 additional risk factor for a severe course of the infection (multiple risk factors in some patients; prematurity in 30, congenital heart disease in 19, chronic lung disease 6 and immunodeficiency in 8). Median age at diagnosis was higher in NMI patients (14 vs. 5 months); NMI patients had a greater risk of seizures (15.1% vs. 1.6%), and a higher proportion in the NMI group had to be mechanically ventilated (9.6% vs. 1.9%). Eventually, the attributable mortality was significantly higher in the NMI group (5.5% vs. 0.2%; P < 0.001 for all). Multivariate logistic regression confirmed that NMI was independently associated with pediatric intensive care unit (PICU) admission (OR, 4.94; 95% CI, 2.69-8.94; P < 0.001] and mechanical ventilation (OR, 3.85; 95% CI, 1.28-10.22; P = 0.017). CONCLUSION This is the first prospective multicenter study confirming the hypothesis that children with clinically relevant NMI face an increased risk for severe RSV-disease. It seems reasonable to include NMI as a cofactor into the decision algorithm of passive immunization.
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Affiliation(s)
- Anja Wilkesmann
- Children's Hospital Medical Center, University of Bonn, Germany
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47
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Simon A, Khurana K, Wilkesmann A, Müller A, Engelhart S, Exner M, Schildgen O, Eis-Hübinger AM, Groothuis JR, Bode U. Nosocomial respiratory syncytial virus infection: Impact of prospective surveillance and targeted infection control. Int J Hyg Environ Health 2006; 209:317-24. [PMID: 16697255 DOI: 10.1016/j.ijheh.2006.02.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2005] [Revised: 02/03/2006] [Accepted: 02/07/2006] [Indexed: 10/24/2022]
Abstract
BACKGROUND Nosocomially acquired respiratory syncytial virus (RSV) infections cause serious problems in hospitalized patients. An increased effort should be made to describe the problems connected with such infections in pediatric hospitals, with the aim of reducing the occurrence of nosocomial RSV infections (NI). METHODS A specialized database was introduced for surveillance and a multifaceted barrier concept based on the CDC recommendations was developed for the control of NI in a university children's hospital in Germany. RESULTS Between 1999 and 2002 (November 1-April 30), 283 RSV infections (general population) were prospectively documented. Thirty-nine cases (13.8%) were nosocomial infections (NI) with an incidence density (ID) of 0.99/1000 patient days; 48.7% of all NI were found in prematurely born infants. Following the introduction of a surveillance and prevention policy, a 9-fold decrease of the ID (1.67 vs. 0.18/1000 patient-days) was found when comparing the first and the last season. Intensive care treatment was required in 18% of all documented RSV-infections, in 48.7% of all NI cases and in 43.5% of all RSV-infected prematurely born infants. Overall RSV-related mortality was 0.71%. CONCLUSIONS Early diagnosis, a strict cohorting and contact isolation policy, and prospective surveillance contribute to the reduction of nosocomial RSV infection.
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Affiliation(s)
- Arne Simon
- Children's Hospital, Medical Centre, University of Bonn, Adenauerallee, Germany.
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48
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Thorburn K, Harigopal S, Reddy V, Taylor N, van Saene HKF. High incidence of pulmonary bacterial co-infection in children with severe respiratory syncytial virus (RSV) bronchiolitis. Thorax 2006; 61:611-5. [PMID: 16537670 PMCID: PMC2104657 DOI: 10.1136/thx.2005.048397] [Citation(s) in RCA: 210] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Respiratory syncytial virus (RSV) is the most common cause of viral lower respiratory tract infections (LRTI). Viral LRTI is a risk factor for bacterial superinfection, having an escalating incidence with increasing severity of respiratory illness. A study was undertaken to determine the incidence of pulmonary bacterial co-infection in infants and children with severe RSV bronchiolitis, using paediatric intensive care unit (PICU) admission as a surrogate marker of severity, and to study the impact of the co-infection on morbidity and mortality. METHODS A prospective microbiological analysis was made of lower airways secretions on all RSV positive bronchiolitis patients on admission to the PICU during three consecutive RSV seasons. RESULTS One hundred and sixty five children (median age 1.6 months, IQR 0.5-4.6) admitted to the PICU with RSV bronchiolitis were enrolled in the study. Seventy (42.4%) had lower airway secretions positive for bacteria: 36 (21.8%) were co-infected and 34 (20.6%) had low bacterial growth/possible co-infection. All were mechanically ventilated (median 5.0 days, IQR 3.0-7.3). Those with bacterial co-infection required ventilatory support for longer than those with only RSV (p<0.01). White cell count, neutrophil count, and C-reactive protein did not differentiate between the groups. Seventy four children (45%) received antibiotics prior to intubation. Sex, co-morbidity, origin, prior antibiotics, time on preceding antibiotics, admission oxygen, and ventilation index were not predictive of positive bacterial cultures. There were 12 deaths (6.6%), five of which were related to RSV. CONCLUSIONS Up to 40% of children with severe RSV bronchiolitis requiring admission to the PICU were infected with bacteria in their lower airways and were at increased risk for bacterial pneumonia.
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Affiliation(s)
- K Thorburn
- Department of Paediatric Intensive Care, Royal Liverpool Children's Hospital, Liverpool L12 2AP, UK.
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49
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Abstract
Health care-acquired are a major risk for hospitalized children. Similar to adult patients, children are vulnerable to infections related to medical devices. Children also are at significant risk of nosocomial transmission of common pediatric viral illness, such as respiratory syncytial virus and varicella. In addition, pediatric patients have unique or incompletely developed immune system.
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Affiliation(s)
- Susan E Coffin
- Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia, 19104, USA
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50
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Abstract
Influenza has historically been an uncommon illness in the newborn period, although epidemic outbreaks in neonatal intensive care units have been described. There is currently significant concern about the possibility of a new pandemic of influenza in the near future. During a pandemic neonates are likely to be exposed, with significant illness more likely in pre-term newborns due to reduced levels of passively transferred protective maternal antibodies. While newer therapies have been shown to be effective in reducing the severity of illness in adults and children, such therapies are untried in neonates. Supportive care and measures to contain and prevent spread of infection may well be the most important measures in the event of a neonate acquiring influenza, including the avian variety.
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Affiliation(s)
- D J Wilkinson
- Neonatal Unit, Mercy Hospital for Women, Melbourne, Australia.
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