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Evren G, Besci T, Appak Ö, Sayıner AA, Arslan G, Duman M. Epidemiology and Acute Respiratory Distress Syndrome Propensity of Viral Respiratory Infections in Pediatric Intensive Care Units Prior to the Coronavirus Disease 2019 Pandemic. J PEDIAT INF DIS-GER 2023. [DOI: 10.1055/s-0042-1760410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
AbstractThis study aimed to determine the epidemiology and acute respiratory distress syndrome (ARDS) propensity of common respiratory viruses in a tertiary pediatric intensive care unit (PICU) among hospitalized children who were tested for respiratory viruses by polymerase chain reaction (PCR) prior to the coronavirus disease 2019 (COVID-19) pandemic. Respiratory tract samples were collected from patients who were followed up in the Dokuz Eylul University Hospital pediatric intensive care unit between March 2015 and March 2020 and tested for viral pathogens. The results of 269 patients between 1 month and 18 years of age were evaluated retrospectively. In the 5 years preceding the COVID-19 pandemic, 269 patients with a lower respiratory infection were admitted to the PICU. A positive viral PCR result was detected in 160 patients (59.5%). Human rhinovirus was the most common virus (40%), followed by respiratory syncytial virus (26.3%), human bocavirus (10%), and seasonal coronaviruses (10%). Five (33.3%) of the fifteen children who developed ARDS were infected with influenza A/B, while four (26.7%) were infected with human metapneumovirus (hMPV).Although rhinovirus was the most common viral agent in critically ill children, the incidence of ARDS was higher in children aged over 1 year who had influenza or hMPV infection.
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Affiliation(s)
- Gültaç Evren
- Manisa City Hospital, Pediatric Intensive Care Unit, Manisa, Turkey
| | - Tolga Besci
- Izmir Buca Seyfi Demirsoy Training and Research Hospital, Pediatric Intensive Care Unit, Izmir, Turkey
| | - Özgür Appak
- Dokuz Eylul University Faculty of Medicine, Medical Microbiology, Izmir, Turkey
| | - Ayça Arzu Sayıner
- Dokuz Eylul University Faculty of Medicine, Medical Microbiology, Izmir, Turkey
| | - Gazi Arslan
- Dokuz Eylul University Faculty of Medicine, Pediatric Intensive Care Unit, Izmir, Turkey
| | - Murat Duman
- Dokuz Eylul University Faculty of Medicine, Pediatric Emergency Care, Izmir, Turkey
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Ademhan Tural D, Yalcin E, Emiralioglu N, Ozsezen B, Alp A, Sunman B, Gozmen O, Dogru D, Ozcelik U, Kiper N. Human bocavirus and human metapneumovirus in children with lower respiratory tract infections: Effects on clinical, microbiological features and disease severity . Pediatr Int 2022; 64:e15102. [PMID: 35616205 DOI: 10.1111/ped.15102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/10/2021] [Accepted: 12/14/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND We aimed to compare the clinical findings of human bocavirus (HBoV) and human metapneumovirus (HMPV) infections, and to analyze the effects of coinfections on clinical features and disease severity in children with HBoV and HMPV infections. METHODS Data were collected from 125 children with lower respiratory tract infections due to HBoV or HMPV, detected from nasal swap by real-time polymerase chain reaction (PCR) during the period from January, 2013 to December, 2017. In total, there were 101 HBoV (group 1) and 23 HMPV (group 2) infections in our data. The patients were further divided into four subgroups according to the coinfection status: HoBV only (subgroup 1, n = 41), HMPV only (subgroup 2, n = 19), HBoV and coinfection with other respiratory viruses (subgroup 3, n = 60), and HMPV and coinfection with other respiratory viruses (subgroup 4, n = 4). RESULTS The majority (88.8%) of the patients were aged 5 years or younger. Coinfections with other respiratory viruses were significantly more common in group 1 (P = 0.001). Among patients who had nosocomial pneumonia, patients with HBoV infections had significantly longer mean length of hospital stay (LOS) than those with HMPV infections (P = 0.032). The hospitalization and antibiotic requirements were significantly higher in subgroup 1 than subgroup 3 (P = 0.005, 0.039, resp.) According to the logistic regression analyses, the LOS increased by 21.7 times with HBoV infections (P = 0.006). CONCLUSIONS Human bocavirus and HMPV infections are serious pathogens mostly seen in children and usually requiring hospitalization regardless of co-infection status. The HBoV infections caused longer LOS than the HMPV infections in patients with nosocomial infections.
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Affiliation(s)
- Dilber Ademhan Tural
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Ebru Yalcin
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Nagehan Emiralioglu
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Beste Ozsezen
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Alpaslan Alp
- Department of Medical Microbiology, School of Medicine, Hacettepe University, Ankara, Turkey
| | - Birce Sunman
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Onur Gozmen
- Department of Pediatrics, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Deniz Dogru
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Ugur Ozcelik
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
| | - Nural Kiper
- Department of Pediatric Pulmonology, School of Medicine, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey
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Lee HN, Koo HJ, Kim SH, Choi SH, Sung H, Do KH. Human Bocavirus Infection in Adults: Clinical Features and Radiological Findings. Korean J Radiol 2020; 20:1226-1235. [PMID: 31270986 PMCID: PMC6609429 DOI: 10.3348/kjr.2018.0634] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 04/07/2019] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Human bocavirus (HBoV) is a newly identified pathogen that can cause upper and lower respiratory infections usually in children; however, its clinical characteristics and significance in respiratory infections in adults have not been well known. Our objective was to evaluate the clinical features of respiratory HBoV infection and to describe the CT findings of HBoV pneumonia in adults. MATERIALS AND METHODS A total of 185 adult patients diagnosed with HBoV infection at a tertiary referral center between January 2010 and December 2017 were retrospectively evaluated with respect to the clinical characteristics of HBoV infection and its risk factors for pneumonia. Chest CT findings for 34 patients with HBoV pneumonia without co-infection were analyzed and compared between immunocompetent (n = 18) and immunocompromised (n = 16) patients. RESULTS HBoV infections were predominantly noted between February and June. Among the 185 patients with HBoV infection, 119 (64.3%) had community-acquired infections and 110 (59.5%) had pneumonia. In multivariable analysis, older age (odds ratio [OR], 1.02; 95% confidence interval [CI], 1.00-1.04; p = 0.045) and nosocomial infection (OR, 2.07; 95% CI, 1.05-4.10; p = 0.037) were associated with HBoV pneumonia. The main CT findings were bilateral consolidation (70.6%) and/or ground-glass opacities (64.7%); centrilobular nodules (14.7%) were found less frequently. The pattern of CT findings were not significantly different between immunocompetent and immunocompromised patients (all, p > 0.05). CONCLUSION HBoV infection can be a potential respiratory tract infection in adults. The most frequent CT findings of HBoV pneumonia were bilateral consolidation and/or ground-glass opacities.
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Affiliation(s)
- Han Na Lee
- Department of Radiology, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Hyun Jung Koo
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soo Hyun Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sang Ho Choi
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Heungsup Sung
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kyung Hyun Do
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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Rikhotso MC, Kabue JP, Ledwaba SE, Traoré AN, Potgieter N. Prevalence of Human Bocavirus in Africa and Other Developing Countries between 2005 and 2016: A Potential Emerging Viral Pathogen for Diarrhea. J Trop Med 2018; 2018:7875482. [PMID: 30275840 PMCID: PMC6157109 DOI: 10.1155/2018/7875482] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 06/20/2018] [Accepted: 07/16/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Human Bocavirus (HBoV) is an emerging virus discovered in 2005 from individuals suffering gastroenteritis and respiratory tract infections. Numerous studies related to the epidemiology and pathogenesis of HBoV have been conducted worldwide. This review reports on HBoV studies in individuals with acute gastroenteritis, with and without respiratory tract infections in Africa between 2005 and 2016. MATERIAL AND METHOD The search engines of PubMed, Google Scholar, and Embase database for published articles of HBoV were used to obtain data between 2005 and 2016. The search words included were as follows: studies performed in Africa or/other developing countries or/worldwide; studies for the detection of HBoV in patients with/without diarrhea and respiratory tract infection; studies using standardized laboratory techniques for detection. RESULTS The search yielded a total of 756 publications with 70 studies meeting the inclusion criteria. Studies included children and individuals of all age groups. HBoV prevalence in Africa was 13% in individuals suffering gastroenteritis with/without respiratory tract infection. CONCLUSION Reports suggest that HBoV infections are increasingly being recognized worldwide. Therefore, surveillance of individuals suffering from infections in Africa is required to monitor the prevalence of HBoV and help understand the role of HBoV in individuals suffering from gastroenteritis with/without respiratory tract infection.
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Affiliation(s)
- Mpumelelo Casper Rikhotso
- Department of Microbiology, School of Mathematical and Natural Science, University of Venda, Thohoyandou, South Africa
| | - Jean Pierre Kabue
- Department of Microbiology, School of Mathematical and Natural Science, University of Venda, Thohoyandou, South Africa
| | - Solanka Ellen Ledwaba
- Department of Microbiology, School of Mathematical and Natural Science, University of Venda, Thohoyandou, South Africa
| | - Afsatou Ndama Traoré
- Department of Microbiology, School of Mathematical and Natural Science, University of Venda, Thohoyandou, South Africa
| | - Natasha Potgieter
- Department of Microbiology, School of Mathematical and Natural Science, University of Venda, Thohoyandou, South Africa
- School of Mathematical Sciences, University of Venda, Thohoyandou, South Africa
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Zhou J, Peng Y, Peng X, Gao H, Sun Y, Xie L, Zhong L, Duan Z, Xie Z, Cao Y. Human bocavirus and human metapneumovirus in hospitalized children with lower respiratory tract illness in Changsha, China. Influenza Other Respir Viruses 2018; 12:279-286. [PMID: 29266860 PMCID: PMC5820417 DOI: 10.1111/irv.12535] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2017] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Lower respiratory tract illness is a major cause of morbidity and mortality in children worldwide, however, information about the epidemiological and clinical characteristics of LRTIs caused by HMPV and HBoV in China is limited. OBJECTIVES Human bocavirus (HBoV) and human metapneumovirus (HMPV) are two important viruses for children with lower respiratory tract infections (LRTI). We aimed to assay the correlation between viral load and clinical characteristics of HBoV and HMPV with LRTI in Changsha, China. METHODS Nasopharyngeal aspirates (NPAs) from children with LRTI were collected. Real-time PCR was used to screen HBoV and HMPV. Analyses were performed using SPSS 16.0 software. RESULTS Pneumonia was the most frequent diagnosis. There was no significant difference between HBoV- and HMPV-positive patients in age (P = .506) or hospitalization duration (P = .280); 24.1% and 18.2% were positive for HBoV and HMPV. HBoV infections peaked in summer (32.2%), and HMPV infections peaked in winter (28.9%). The HBoV-positive patients had a shorter hospitalization duration than the HBoV-negative patients (P = .021), and the HMPV-positive patients had a higher prevalence of fever than the HMPV-negative patients (P = .002). The HBoV viral load was significantly higher among patients aged <1 year (P = .006). The mean HBoV and HMPV viral loads were not significantly different between patients with single infections and coinfections. Patients infected with HBoV only were older than those coinfected with HBoV and other respiratory viruses (P = .005). No significant difference was found in the clinical characteristics of patients infected with HMPV only and those coinfected with HMPV and other respiratory viruses. CONCLUSION Pneumonia was the most frequent diagnosis caused by HBoV and HMPV. Neither HBoV nor HMPV viral load was correlated with disease severity.
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Affiliation(s)
- Jie‐ying Zhou
- Department of Laboratory MedicalThe First People's Hospital of Hunan ChenzhouChenzhouChina
- Key Laboratory for Medical VirologyMinistry of HealthNational Institute for Viral Disease Control and Prevention, ChinaCenter for Disease ControlBeijingChina
- Department of Laboratory MedicalThe First Affiliated Hospital of Hunan Normal UniversityChangshaChina
| | - Ying Peng
- Key Laboratory for Medical VirologyMinistry of HealthNational Institute for Viral Disease Control and Prevention, ChinaCenter for Disease ControlBeijingChina
- Department of PaediatricsThe First Affiliated Hospital of Hunan Normal UniversityChangshaChina
| | - Xiao‐you Peng
- Department of Laboratory MedicalThe First People's Hospital of Hunan ChenzhouChenzhouChina
| | - Han‐chun Gao
- Key Laboratory for Medical VirologyMinistry of HealthNational Institute for Viral Disease Control and Prevention, ChinaCenter for Disease ControlBeijingChina
| | - Ya‐ping Sun
- Yuhang District Center for Disease Control and PreventionHangzhouChina
| | - Le‐yun Xie
- Department of PaediatricsThe First Affiliated Hospital of Hunan Normal UniversityChangshaChina
| | - Li‐li Zhong
- Department of PaediatricsThe First Affiliated Hospital of Hunan Normal UniversityChangshaChina
| | - Zhao‐jun Duan
- Key Laboratory for Medical VirologyMinistry of HealthNational Institute for Viral Disease Control and Prevention, ChinaCenter for Disease ControlBeijingChina
| | - Zhi‐ping Xie
- Key Laboratory for Medical VirologyMinistry of HealthNational Institute for Viral Disease Control and Prevention, ChinaCenter for Disease ControlBeijingChina
| | - You‐de Cao
- Department of Laboratory MedicalThe First Affiliated Hospital of Hunan Normal UniversityChangshaChina
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Schlaberg R, Ampofo K, Tardif KD, Stockmann C, Simmon KE, Hymas W, Flygare S, Kennedy B, Blaschke A, Eilbeck K, Yandell M, McCullers JA, Williams DJ, Edwards K, Arnold SR, Bramley A, Jain S, Pavia AT. Human Bocavirus Capsid Messenger RNA Detection in Children With Pneumonia. J Infect Dis 2017; 216:688-696. [PMID: 28934425 PMCID: PMC5853397 DOI: 10.1093/infdis/jix352] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 07/19/2017] [Indexed: 12/14/2022] Open
Abstract
Background The role of human bocavirus (HBoV) in respiratory illness is uncertain. HBoV genomic DNA is frequently detected in both ill and healthy children. We hypothesized that spliced viral capsid messenger RNA (mRNA) produced during active replication might be a better marker for acute infection. Methods As part of the Etiology of Pneumonia in the Community (EPIC) study, children aged <18 years who were hospitalized with community-acquired pneumonia (CAP) and children asymptomatic at the time of elective outpatient surgery (controls) were enrolled. Nasopharyngeal/oropharyngeal specimens were tested for HBoV mRNA and genomic DNA by quantitative polymerase chain reaction. Results HBoV DNA was detected in 10.4% of 1295 patients with CAP and 7.5% of 721 controls (odds ratio [OR], 1.4 [95% confidence interval {CI}, 1.0–2.0]); HBoV mRNA was detected in 2.1% and 0.4%, respectively (OR, 5.1 [95% CI, 1.6–26]). When adjusted for age, enrollment month, and detection of other respiratory viruses, HBoV mRNA detection (adjusted OR, 7.6 [95% CI, 1.5–38.4]) but not DNA (adjusted OR, 1.2 [95% CI, .6–2.4]) was associated with CAP. Among children with no other pathogens detected, HBoV mRNA (OR, 9.6 [95% CI, 1.9–82]) was strongly associated with CAP. Conclusions Detection of HBoV mRNA but not DNA was associated with CAP, supporting a pathogenic role for HBoV in CAP. HBoV mRNA could be a useful target for diagnostic testing.
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Affiliation(s)
- Robert Schlaberg
- Department of Pathology.,ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah
| | | | - Keith D Tardif
- ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah
| | | | | | - Weston Hymas
- ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah
| | | | | | | | | | - Mark Yandell
- Department of Human Genetics, University of Utah
| | - Jon A McCullers
- Department of Pediatrics, University of Tennessee Health Sciences Center.,Nashville and Le Bonheur Children's Hospital.,St. Jude Children's Research Hospital, Memphis
| | - Derek J Williams
- Vanderbilt University School of Medicine.,Division of Infectious Diseases, Department of Pediatrics, Monroe Carell Jr. Children's Hospital, Vanderbilt University.,Vanderbilt Vaccine Research Program, Nashville, Tennessee
| | - Kathryn Edwards
- Division of Infectious Diseases, Department of Pediatrics, Monroe Carell Jr. Children's Hospital, Vanderbilt University.,Vanderbilt Vaccine Research Program, Nashville, Tennessee
| | - Sandra R Arnold
- Department of Pediatrics, University of Tennessee Health Sciences Center.,Nashville and Le Bonheur Children's Hospital
| | - Anna Bramley
- Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Seema Jain
- Centers for Disease Control and Prevention, Atlanta, Georgia
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Abstract
Parvovirus B19 (B19V) and human bocavirus 1 (HBoV1), members of the large Parvoviridae family, are human pathogens responsible for a variety of diseases. For B19V in particular, host features determine disease manifestations. These viruses are prevalent worldwide and are culturable in vitro, and serological and molecular assays are available but require careful interpretation of results. Additional human parvoviruses, including HBoV2 to -4, human parvovirus 4 (PARV4), and human bufavirus (BuV) are also reviewed. The full spectrum of parvovirus disease in humans has yet to be established. Candidate recombinant B19V vaccines have been developed but may not be commercially feasible. We review relevant features of the molecular and cellular biology of these viruses, and the human immune response that they elicit, which have allowed a deep understanding of pathophysiology.
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Affiliation(s)
- Jianming Qiu
- Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | | | - Neal S Young
- Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
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Wu JJ, Jin Y, Lin N, Xie ZP, Yu JM, Li JS, Cao CQ, Yuan XH, Song JR, Zhang J, Zhao Y, Gao XQ, Duan ZJ. Detection of human bocavirus in children with acute respiratory tract infections in Lanzhou and Nanjing, China. BIOMEDICAL AND ENVIRONMENTAL SCIENCES : BES 2014; 27:841-848. [PMID: 25374017 PMCID: PMC7134634 DOI: 10.3967/bes2014.110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 07/01/2014] [Indexed: 06/04/2023]
Abstract
OBJECTIVE The aim of this study was to explore the prevalent characteristics of HBoV1 and its co-infection. METHODS PCR was used to detect HBoV1-DNA (HBoV1) and other viruses. A multivariate logistic regression model was used to explore possibility of co-detected for related viruses. RESULTS The positivity rates in Nanjing and Lanzhou were 9.38% (74/789) and 11.62% (161/1386), respectively (P>0.05). The HBoV1 positive group was younger than negative group (P<0.05). Seasonal differences were noted, with a higher frequency of infection in December and July. HBoV1-positive children [72.34% (169/235)] were co-infected with other respiratory viruses. Multifactorial analysis showed no correlations between HBoV1 and the clinical classification, region, gender, age, or treatment as an outpatient or in a hospital. Correlations were identified between HBoV1 infections with ADV (OR=1.53, 95% CI 1.03-2.28), RSV (OR=0.71, 95% CI 0.52-0.98), and IFVA (OR=1.77, 95% CI 1.00-3.13). CONCLUSION Presence of HBoV1 in nasopharyngeal aspirates did not correlate with region or gender, although the prevalence of HBoV1 was higher in younger children. There were no correlations between HBoV1 and other variables, except for the season and ADV, RSV, or IFVA infections.
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Affiliation(s)
- Jian Jun Wu
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Yu Jin
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; Nanjing Children's Hospital, Medical School of Nanjing University, Nanjing 210008, Jiangsu, China
| | - Na Lin
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Zhi Ping Xie
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Jie Mei Yu
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Jin Song Li
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Chang Qing Cao
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Xin Hui Yuan
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Jin Rong Song
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Jing Zhang
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Yang Zhao
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Xiao Qian Gao
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, Gansu, China; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
| | - Zhao Jun Duan
- National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China
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Lu QB, Wo Y, Wang HY, Huang DD, Zhao J, Zhang XA, Zhang YY, Liu EM, Liu W, Cao WC. Epidemic and molecular evolution of human bocavirus in hospitalized children with acute respiratory tract infection. Eur J Clin Microbiol Infect Dis 2014; 34:75-81. [PMID: 25070494 PMCID: PMC7087953 DOI: 10.1007/s10096-014-2215-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 07/14/2014] [Indexed: 12/13/2022]
Abstract
Human bocavirus (HBoV) is a novel parvovirus, often associated with respiratory tract diseases in children. This study explored the epidemiological characteristics and molecular evolution of HBoV-1 in southeastern China. Nasopharyngeal aspirates were collected from children admitted to hospital with acute respiratory tract infections. HBoV-1 was detected using real-time reverse transcription polymerase chain reaction and further characterized by complete genome sequences analysis. Among the 3,022 recruited children, 386 (12.77 %) were HBoV-1-positive and 300 (77.72 %) had co-detection with other respiratory viruses. Seasonal prevalence peaked in summer. HBoV-1 presence was significantly associated with asthma attack [odds ratio = 1.74; 95 % confidence interval: 1.30, 2.31; p < 0.001]. Similar results were obtained when either single detection or co-detection of HBoV-1 was considered, demonstrating the minor impact of co-detection on the clinical characteristics or epidemic pattern. Phylogenetic analysis based on the complete genome sequences showed that all the HBoV-1 sequences clustered together and no branch was formed that was supported by bootstrap value ≥750. The overall evolutionary rate of the complete genome of HBoV-1 was estimated at 1.08 × 10−4 nucleotide substitutions per site per year (s/s/y) [95 % highest probability density: (0.40–1.86) × 10−4 s/s/y]. Selective pressure analysis showed that all the ω-values were less than 1, suggesting that HBoV-1 was under negative selective pressure. Site-by-site analysis identified the codon site 40 of the VP1 gene under positive selection. In conclusion, our study disclosed the epidemiological and genetic dynamics of HBoV-1 epidemics in southeastern China in the most recent 3 years, the information of which might help to further improve our understanding of HBoV-1 infection and guide better surveillance and control strategies in the future.
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Affiliation(s)
- Q-B Lu
- School of Public Health, Peking University, Beijing, 100191, China.,State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China
| | - Y Wo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China
| | - H-Y Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China
| | - D-D Huang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China
| | - J Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China
| | - X-A Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China
| | - Y-Y Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China
| | - E-M Liu
- Children's Hospital, Chongqing Medical University, Chongqing, 400014, China
| | - W Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China.
| | - W-C Cao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong-Da Street, Fengtai District, Beijing, 100071, China.
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10
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Chen ZR, Mize M, Wang YQ, Yan YD, Zhu CH, Wang Y, Ji W. Clinical and epidemiological profiles of lower respiratory tract infection in hospitalized children due to human bocavirus in a subtropical area of China. J Med Virol 2014; 86:2154-62. [PMID: 24782248 PMCID: PMC7166550 DOI: 10.1002/jmv.23952] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2014] [Indexed: 01/19/2023]
Abstract
Lower respiratory tract infection is a major cause of morbidity and mortality in children. Human bocavirus (HBoV) is confirmed to have an association with pediatric lower respiratory tract infection. Seasonal and meteorological factors may play a key role in the epidemiology of HBoV. The purpose of this study was to ascertain the frequency, season, and clinical characteristics of hospitalized children with HBoV infection. In addition, an evaluation of the effects of meteorological factors on the incidence of HBoV in a subtropical area in China will be conducted. Children were <14 years in age and hospitalized for lower respiratory tract infection between January 1, 2009 and December 31, 2012 in the Respiratory Disease Department at the Children's Hospital affiliated to Soochow University. Multi‐pathogens were detected in nasopharyngeal aspirate samples. The association between HBoV activity and regional meteorological conditions was analyzed. The average incidence of HBoV infection was 6.6% (502/7,626). Of the 502 HBoV positive children, the median age was 13 months (range 1–156 months). The HBoV infection rate was highest among the 7–12 months groups (12.9%, 163/1,267). Seasonal distribution of HBoV was noted during June to November, especially during the summer season (June to August). HBoV activity was associated with temperature and humidity although the lag effect between temperature and HBoV activity observed. HBoV is one of the most common viral pathogens in children with lower respiratory tract infection. HBoV infection occurs throughout the year with a peak during the summer. Temperature and humidity may affect the incidence of HBoV. J. Med. Virol. 86:2154–2162, 2014. © 2014 Wiley Periodicals, Inc.
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Affiliation(s)
- Zheng-Rong Chen
- Department of Respiratory Disease, Soochow University Affiliated Children's Hospital, Suzhou, 215003, China
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11
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Tran DN, Nguyen TQN, Nguyen TA, Hayakawa S, Mizuguchi M, Ushijima H. Human bocavirus in children with acute respiratory infections in Vietnam. J Med Virol 2013; 86:988-94. [PMID: 24123072 PMCID: PMC7167113 DOI: 10.1002/jmv.23789] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2013] [Indexed: 01/14/2023]
Abstract
Acute respiratory infections are the major cause of morbidity and mortality globally. Human bocavirus (HBoV), a novel virus, is recognized to increasingly associate with previously unknown etiology respiratory infections in young children. In this study, the epidemiological, clinical, and molecular characteristics of HBoV infections were described in hospitalized Vietnamese pediatric patients. From April 2010 to May 2011, 1,082 nasopharyngeal swab samples were obtained from patients with acute respiratory infections at the Children's Hospital 2, Ho Chi Minh City, Vietnam. Samples were screened for HBoV by PCR and further molecularly characterized by sequencing. HBoV was found in 78 (7.2%) children. Co‐infection with other viruses was observed in 66.7% of patients infected with HBoV. Children 12–24 months old were the most affected age group. Infections with HBoV were found year‐round, though most cases occurred in the dry season (December–April). HBoV was possible to cause severe diseases as determined by higher rates of hypoxia, pneumonia, and longer hospitalization duration in patients with HBoV infection than in those without (P‐value <0.05). Co‐infection with HBoV did not affect the disease severity. The phylogenetic analysis of partial VP1 gene showed minor variations and all HBoV sequences belonged to species 1 (HBoV1). In conclusion, HBoV1 was circulating in Vietnam and detected frequently in young children during dry season. Acute respiratory infections caused by HBoV1 were severe enough for hospitalization, which implied that HBoV1 may have an important role in acute respiratory infections among children. J. Med. Virol. 86:988–994, 2014. © 2013 Wiley Periodicals, Inc.
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Affiliation(s)
- Dinh Nguyen Tran
- Department of Developmental Medical Sciences, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Department of Pediatrics, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam; Division of Microbiology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
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12
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da Silva ER, Pitrez MCP, Arruda E, Mattiello R, Sarria EE, de Paula FE, Proença-Modena JL, Delcaro LS, Cintra O, Jones MH, Ribeiro JD, Stein RT. Severe lower respiratory tract infection in infants and toddlers from a non-affluent population: viral etiology and co-detection as risk factors. BMC Infect Dis 2013; 13:41. [PMID: 23351117 PMCID: PMC3598993 DOI: 10.1186/1471-2334-13-41] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 01/21/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Lower respiratory tract infection (LRTI) is a major cause of pediatric morbidity and mortality, especially among non-affluent communities. In this study we determine the impact of respiratory viruses and how viral co-detections/infections can affect clinical LRTI severity in children in a hospital setting. METHODS Patients younger than 3 years of age admitted to a tertiary hospital in Brazil during the months of high prevalence of respiratory viruses had samples collected from nasopharyngeal aspiration. These samples were tested for 13 different respiratory viruses through real-time PCR (rt-PCR). Patients were followed during hospitalization, and clinical data and population characteristics were collected during that period and at discharge to evaluate severity markers, especially length of hospital stay and oxygen use. Univariate regression analyses identified potential risk factors and multivariate logistic regressions were used to determine the impact of specific viral detections as well as viral co-detections in relation to clinical outcomes. RESULTS We analyzed 260 episodes of LRTI with a viral detection rate of 85% (n = 222). Co-detection was observed in 65% of all virus-positive episodes. The most prevalent virus was Respiratory Syncytial Virus (RSV) (54%), followed by Human Metapneumovirus (hMPV) (32%) and Human Rhinovirus (HRV) (21%). In the multivariate models, infants with co-detection of HRV + RSV stayed 4.5 extra days (p = 0.004), when compared to infants without the co-detection. The same trends were observed for the outcome of days of supplemental oxygen use. CONCLUSIONS Although RSV remains as the main cause of LRTI in infants our study indicates an increase in the length of hospital stay and oxygen use in infants with HRV detected by RT-PCR compared to those without HRV. Moreover, one can speculate that when HRV is detected simultaneously with RSV there is an additive effect that may be reflected in more severe clinical outcome. Also, our study identified a significant number of children infected by recently identified viruses, such as hMPV and Human Bocavirus (HBov), and this is a novel finding for poor communities from developing countries.
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Affiliation(s)
| | | | | | - Rita Mattiello
- Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Edgar E Sarria
- Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | | | | | | | | | - Marcus H Jones
- Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Renato T Stein
- Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
- Pediatric Respirology, Department of Pediatrics, PUCRS, Av. Ipiranga, 6690, IPB-PUCRS, Porto Alegre, Brazil
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Xu L, He X, Zhang DM, Feng FS, Wang Z, Guan LL, Wu JH, Zhou R, Zheng BJ, Yuen KY, Li MF, Cao KY. Surveillance and genome analysis of human bocavirus in patients with respiratory infection in Guangzhou, China. PLoS One 2012; 7:e44876. [PMID: 22984581 PMCID: PMC3439446 DOI: 10.1371/journal.pone.0044876] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2012] [Accepted: 08/09/2012] [Indexed: 01/27/2023] Open
Abstract
Human bocavirus (HBoV) is a novel parvovirus associated with respiratory tract diseases and gastrointestinal illness in adult and pediatric patients throughout the world. To investigate the epidemiological and genetic variation of HBoV in Guangzhou, South China, we screened 3460 throat swab samples from 1686 children and 1774 adults with acute respiratory infection symptoms for HBoV between March 2010 and February 2011, and analyzed the complete genome sequence of 2 HBoV strains. Specimens were screened for HBoV by real-time PCR and other 6 common respiratory viruses by RT-PCR or PCR. HBoV was detected in 58 (1.68%) out of 3460 samples, mostly from pediatric patients (52/58) and inpatient children (47/58). Six adult patients were detected as HBoV positive and 5 were emergency cases. Of these HBoV positive cases, 19 (32.76%) had co-pathogens including influenza virus (n = 5), RSV (n = 5), parainfluenza (n = 4), adenovirus (n = 1), coronavirus (n = 7). The complete genome sequences of 2 HBoVs strains (Genbank no. JN794565 and JN794566) were analyzed. Phylogenetic analysis showed that the 2 HBoV strains were HBoV1, and were most genetically close to ST2 (GenBank accession number DQ0000496). Recombination analysis confirmed that HBoV strain GZ9081 was an intra–genotype recombinant strain among HBoV1 variants.
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Affiliation(s)
- Lin Xu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xia He
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Ding-mei Zhang
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Fa-shen Feng
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Zhu Wang
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Lin-lin Guan
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jue-heng Wu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Rong Zhou
- State Key Laboratory of Respiratory Diseases, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Bo-jian Zheng
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
- Department of Microbiology, University of Hong Kong, Hong Kong SAR, China
| | - Kwok-yung Yuen
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
- Department of Microbiology, University of Hong Kong, Hong Kong SAR, China
| | - Meng-feng Li
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Kai-yuan Cao
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, People's Republic of China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Sun Yat-sen University – University of Hong Kong Joint Laboratory of Infectious Disease Surveillance, Sun Yat-sen University, Guangzhou, People's Republic of China
- * E-mail:
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Jartti T, Hedman K, Jartti L, Ruuskanen O, Allander T, Söderlund-Venermo M. Human bocavirus-the first 5 years. Rev Med Virol 2011; 22:46-64. [PMID: 22038931 DOI: 10.1002/rmv.720] [Citation(s) in RCA: 209] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 09/17/2011] [Accepted: 09/19/2011] [Indexed: 12/17/2022]
Abstract
Four species of human bocavirus (HBoV) have been recently discovered and classified in the Bocavirus genus (family Parvoviridae, subfamily Parvovirinae). Although detected both in respiratory and stool samples worldwide, HBoV1 is predominantly a respiratory pathogen, whereas HBoV2, HBoV3, and HBoV4 have been found mainly in stool. A variety of signs and symptoms have been described in patients with HBoV infection including rhinitis, pharyngitis, cough, dyspnea, wheezing, pneumonia, acute otitis media, fever, nausea, vomiting, and diarrhea. Many of these potential manifestations have not been systematically explored, and they have been questioned because of high HBoV co-infection rates in symptomatic subjects and high HBoV detection rates in asymptomatic subjects. However, evidence is mounting to show that HBoV1 is an important cause of lower respiratory tract illness. The best currently available diagnostic approaches are quantitative PCR and serology. This concise review summarizes the current clinical knowledge on HBoV species.
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Affiliation(s)
- Tuomas Jartti
- Department of Pediatrics, Turku University Hospital, Turku, Finland.
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15
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Malecki M, Schildgen V, Schildgen O. Human bocavirus: still more questions than answers. Future Virol 2011. [DOI: 10.2217/fvl.11.78] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The human bocavirus was first detected in 2005 and since then has been found in both respiratory secretions from patients with airway infections and in stool samples from patients with gastroenteritis. Meanwhile, four different genotypes have been identified that most likely derive from recombination events. Although the modified Koch’s postulates have not yet been fulfilled completely, owing to the lack of an animal model or a simple cell culture system, there is increasing evidence that the human bocaviruses are serious participants in infectious diseases of the respiratory and the GI tracts. This article reviews the current status of the clinical features of human bocaviruses and provides an overview of the latest findings concerning the biology, phylogeny, epidemiology and diagnostic tools related to human bocaviruses. Furthermore, it discusses the potential pathogenicity of human bocavirus, as well as its persistence and reactivation in hosts.
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Affiliation(s)
- Monika Malecki
- Kliniken der Stadt Köln gGmbH, Krankenhaus Merheim, Klinikum der Privaten Universität Witten/Herdecke, Institut für Pathologie, Ostmerheimer Str. 200, D-51109 Cologne, Germany
| | - Verena Schildgen
- Kliniken der Stadt Köln gGmbH, Krankenhaus Merheim, Klinikum der Privaten Universität Witten/Herdecke, Institut für Pathologie, Ostmerheimer Str. 200, D-51109 Cologne, Germany
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16
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Olofsson S, Brittain-Long R, Andersson LM, Westin J, Lindh M. PCR for detection of respiratory viruses: seasonal variations of virus infections. Expert Rev Anti Infect Ther 2011; 9:615-26. [PMID: 21819328 PMCID: PMC7103711 DOI: 10.1586/eri.11.75] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Real-time PCR and related methods have revolutionized the laboratory diagnosis of viral respiratory infections because of their high detection sensitivity, rapidness and potential for simultaneous detection of 15 or more respiratory agents. Results from studies with this diagnostic modality have significantly expanded our knowledge about the seasonality of viral respiratory diseases, pinpointed the difficulties to make a reliable etiologic diagnosis without the aid of an unbiased multiplex molecular assay for respiratory viruses, and revealed previously unknown details as to possible infections with multiple agents as aggravating factors. The scope of this article is to review and discuss this new knowledge and its implications for diagnostic strategies and other measures essential for the clinical management of respiratory viral infections and for epidemiological surveillance of seasonal respiratory infections.
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Affiliation(s)
- Sigvard Olofsson
- Department of Clinical Virology, University of Gothenburg, Guldhedsgatan 10B, S-413 46 Gothenburg, Sweden.
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17
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Jin Y, Zhang RF, Xie ZP, Yan KL, Gao HC, Song JR, Yuan XH, Cheng WX, Hou YD, Duan ZJ. Newly identified respiratory viruses associated with acute lower respiratory tract infections in children in Lanzou, China, from 2006 to 2009. Clin Microbiol Infect 2011; 18:74-80. [PMID: 21767329 PMCID: PMC7129015 DOI: 10.1111/j.1469-0691.2011.03541.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nasopharyngeal aspirates were collected from 813 children ≤ 14 years old with acute lower respiratory tract infections in Lanzhou, China, from December 2006 to November 2009. PCR or RT-PCR was used to screen for the presence of 10 respiratory viruses. Viral agents were identified in 73.92% (601/813) of specimens, including RSV in 40.71%, hMPV in 6.15%, IFVA in 7.13%, IFVB in 0.98%, PIV1-3 in 7.87%, HCoV-HKU1 in 2.21%, HCoV-NL63 in 3.81%, HRV in 19.93%, AdV in 7.50% and HBoV in 11.56%. Two or more viruses were detected in 34.44% (280/813) of cases. The newly identified respiratory viruses, HBoV, hMPV, HCoV-HKU1 and HCoV-NL63, accounted for 22.01% of the detected viral pathogens. RSV and HRV were frequently detected in patients with bronchiolitis, and hMPV was frequently associated with pneumonia. HCoV-NL63 was found to be one of the causative agents of acute respiratory wheezing in young children. No seasonal variation was found in the incidence of detection of HCoV-HKU1, HCoV-NL63 or HBoV. This 3-year study demonstrated that viral pathogens play an important role in children with ALRTIs, and more attention should be paid to these newly identified viral agents.
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Affiliation(s)
- Y Jin
- Medical School of Nanjing University, Nanjing, China
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Pham NTK, Trinh QD, Chan-It W, Khamrin P, Nishimura S, Sugita K, Maneekarn N, Okitsu S, Mizuguchi M, Ushijima H. Human bocavirus infection in children with acute gastroenteritis in Japan and Thailand. J Med Virol 2010; 83:286-90. [DOI: 10.1002/jmv.21876] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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