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human bocavirus

L H Kang, Y J Won, A R Lee, S G Lee, H G Cho, Y J Park, J I Han, S Y Paik
Human bocaviruses (HBoVs) have been detected in human gastrointestinal infections worldwide. In 2005, HBoV was also discovered in infants and children with infections of the lower respiratory tract. Recently, several genotypes of this parvovirus, including HBoV genotype 2 (HBoV2), genotype 3 (HBoV3) and genotype 4 (HBoV4), were discovered and found to be closely related to HBoV. HBoV2 was first detected in stool samples from children in Pakistan, followed by detection in other countries. HBoV3 was detected in Australia and HBoV4 was identified in stool samples from Nigeria, Tunisia and the USA...
March 14, 2018: Epidemiology and Infection
Ahmed S Abdel-Moneim, Mohammad E Mahfouz, Dalia M Zytouni
Human bocavirus is associated with respiratory disease worldwide, mainly in children. There are conflicting results, however, regarding the existence of the HBoV in blood donors. Three hundred whole blood samples from non-immunodeficient healthy blood donors were screened for the presence of HBoV by polymerase chain reaction. The HBoV genotype of positive samples was determined using direct gene sequencing. Twenty-one out of the three hundred blood samples were found to be positive for HBoV. Sequence analysis of the positive samples revealed that all the strains were related to the HBoV-1 type with a low rate of variation among the detected sequences...
2018: PloS One
Jeong-Min Kim, Hee-Dong Jung, Hyang-Min Cheong, Anna Lee, Nam-Joo Lee, Hyuk Chu, Sung Soon Kim, Jang-Hoon Choi
The prevalence of eight respiratory viruses detected in patients with acute respiratory infections (ARIs) in Korea was investigated through analysis of data recorded by the Korea Influenza and Respiratory Viruses Surveillance System (KINRESS) from 2013 to 2015. Nasal aspirate and throat swabs specimens were collected from 36,915 patients with ARIs, and viral nucleic acids were detected by real-time (reverse-transcription) polymerase chain reaction for eight respiratory viruses, including human respiratory syncytial viruses (HRSVs), influenza viruses (IFVs), human parainfluenza viruses (HPIVs), human coronaviruses (HCoVs), human rhinovirus (HRV), human adenovirus (HAdV), human bocavirus (HBoV), and human metapneumovirus (HMPV)...
February 28, 2018: Journal of Medical Virology
Mosab A Adam, Ji Wang, Khalid-A Enan, Hongwei Shen, Hao Wang, Abdel R El Hussein, Azza B Musa, Isam M Khidir, Xuejun Ma
Diarrheal disease is a major public health problem for children in developing countries. Knowledge of etiology that causes diarrheal illness is essential to implement public health measures to prevent and control this disease. Published studies regarding the situation of childhood diarrhea in Sudan is scanty. This study aims to investigate viral and bacterial etiology and related clinical and epidemiological factors in children with acute diarrhea in Khartoum State, Sudan. A total of 437 fecal samples were collected from hospitalized children <5 years old with acute diarrhea, viral and bacterial pathogens were investigated by using two-tube multiplex RT-PCR...
2018: Frontiers in Microbiology
Chutchai Piewbang, Wendy K Jo, Christina Puff, Martin Ludlow, Erhard van der Vries, Wijit Banlunara, Anudep Rungsipipat, Jochen Kruppa, Klaus Jung, Somporn Techangamsuwan, Wolfgang Baumgärtner, Albert D M E Osterhaus
Bocaviruses are small nonenveloped DNA viruses belonging to the Bocaparvovirus genus of the Parvoviridae family and have been linked to both respiratory and enteric disease in humans and animals. To date, 3 bocaviruses, canine bocaviruses 1 to 3 (CBoV-1-3), have been shown to affect dogs with different disease manifestations reported for infected animals. We used next-generation sequencing to identify a novel strain of canine CBoV-2 (CBoV TH-2016) in a litter of puppies that died in Thailand from acute dyspnea and hemoptysis, for which no causal pathogen could be identified in routine assays...
January 1, 2018: Veterinary Pathology
Patricia Evelin Silva, Cristina Adelaide Figueiredo, Adriana Luchs, Terezinha Maria de Paiva, Margarete Aparecida Benega Pinho, Renato Sousa Paulino, Daniela Bernardes Borges da Silva, Katia Corrêa de Oliveira Santos, Ana Maria Sardinha Afonso, Maria Isabel de Oliveira
The aims of this study were to investigate the human bocavirus (HBoV) frequency and genotypes in hospitalized children <5 years presenting acute respiratory infections (ARI) within the São Paulo metropolitan area. Nasopharyngeal samples from 300 patients, previously screened for common respiratory viruses, were tested by qPCR for the NSP1 and NP-1 genes. The VP1/2 gene in positive samples was then amplified by PCR and sequenced. A total of 49 positive HBoV cases (16.3%; mean Ct value of 34.41) were detected with the mean age being 18...
February 1, 2018: Archives of Virology
Maria-Jesus Chasqueira, Paulo Paixão, Maria-Lúcia Rodrigues, Cátia Piedade, Iolanda Caires, Teresa Palmeiro, Maria-Amalia Botelho, Madalena Santos, Martin Curran, Raquel Guiomar, Pedro Pechirra, Inês Costa, Ana Papoila, Marta Alves, Nuno Neuparth
OBJECTIVE: the aim of this study was to analyze the etiology and clinical consequences of viral respiratory infections in 18 elderly care centers (ECC) in Lisbon, which housed a total of 1022 residents. METHODS: nasopharyngeal swabs were collected whenever an elderly had symptoms of acute respiratory infections (ARI). PCR and RT-PCR were performed for influenza A/B, human parainfluenza virus 1-4, adenovirus, human metapneumovirus (HMPV), respiratory syncytial virus (RSV), rhinovirus, enterovirus, human coronavirus and human Bocavirus (HBoV)...
January 29, 2018: International Journal of Infectious Diseases: IJID
Xuechao Li, Juansheng Li, Lei Meng, Wanqi Zhu, Xinfeng Liu, Mei Yang, Deshan Yu, Lixia Niu, Xiping Shen
Understanding etiological role and epidemiological profile is needed to improve clinical management and prevention of acute respiratory infections (ARIs). A five-year prospective study about active surveillance for outpatients and inpatients with ARIs was conducted in Gansu province, China, from January 2011 to November 2015. Respiratory specimens were collected from patients and tested for eight respiratory viruses using polymerase chain reaction (PCR) or reverse transcription polymerase chain reaction (RT-PCR)...
February 1, 2018: Journal of Medical Virology
G La Rosa, G Purpari, A Guercio, S Di Bella, F Gucciardi, Y T R Proroga, M Pisanu, S Della Libera, M Iaconelli, E Suffredini
Human bocavirus (HBoV) has been shown to be a common cause of respiratory infections and gastroenteritis in children. Recently, HBoVs have been detected in sewage and river waters in Italy and worldwide. However, no studies are yet available on their presence in other water environments and in bivalve molluscs.In this study, 316 bivalve shellfish samples collected in three Italian regions over a six-year period (2012-2017) were analyzed by nested PCR and sequencing using broad-range primer pairs targeting the capsid proteins VP1/VP2 of HBoV...
January 19, 2018: Applied and Environmental Microbiology
Jennifer Weidhaas, Angela Anderson, Rubayat Jamal
Fecal indicator bacteria (FIB) are the basis for water quality regulations and are considered proxies for waterborne pathogens when conducting human health risk assessments. Direct detection of pathogens in water and simultaneous identification of the source of fecal contamination is possible with microarrays, circumventing drawbacks to FIB approaches. A multi-gene target microarray was used to assess the prevalence of waterborne pathogens in a fecally impaired, mixed use watershed. Results indicate that fecal coliforms have improved substantially in the watershed since its listing as a 303(d) impaired stream in 2002 and are now near United States recreational water criteria standards...
January 5, 2018: Applied and Environmental Microbiology
Matías Salvo, Andrés Lizasoain, Matías Castells, Viviana Bortagaray, Sebastián Castro, Rodney Colina, Fernando Lopez Tort, Matías Victoria
Human bocavirus (HBoV) infections are related to respiratory and gastroenteric diseases. The aim of this study was to investigate the presence of HBoV in both sewage and surface waters in Uruguay. Sixty-eight sewage samples from the cities of Salto, Paysandú, Bella Unión, Fray Bentos, Treinta y Tres and Melo and 36 surface water samples from the cities of Salto, Florida and Santa Lucía were studied. HBoV was screened by multiplex qPCR for the detection of the four subtypes, followed by monoplex qPCRs for the independent quantification of each subtype...
January 3, 2018: Food and Environmental Virology
Narayanan Kalyanaraman
Human bocavirus 1 (HBoV1) is a newly identified parvovirus that causes serious respiratory infection among children across the globe. Aim of the present study was to predict immunogenic residues located on the VP2 protein of HBoV1 towards development of epitope based vaccines. Several computational tools were employed to predict epitopes (bothT and B cell restricted) with stringent regulation for the improvement of confidence. After meticulous analysis, the peptide "TTPWTYFNFNQY" was identified as potential candidate for development of preventive vaccine...
January 2018: Molecular Immunology
José Luis Piñana, Silvia Madrid, Ariadna Pérez, Juan Carlos Hernández-Boluda, Estela Giménez, María José Terol, Marisa Calabuig, David Navarro, Carlos Solano
Epidemiologic data about coronaviruses (CoVs) and human bocavirus (HBoV) in the setting of allogeneic hematopoietic stem cell transplantation (allo-HSCT) are scarce. We conducted a prospective longitudinal study on respiratory viral infections (RVIs) in allo-HSCT recipients with respiratory symptoms from December 2013 until June 2016. Respiratory virus in upper and/or lower respiratory tract (URT and LRT) specimens were tested using Luminex xTAG RVP Fast v1 assay. Seventy-nine consecutive allo-HSCT recipients developed a total of 192 virologically documented RVI episodes over 30 months...
March 2018: Biology of Blood and Marrow Transplantation
Amanda C Nascimento-Carvalho, Ana-Luisa Vilas-Boas, Maria-Socorro H Fontoura, Man Xu, Tytti Vuorinen, Maria Söderlund-Venermo, Olli Ruuskanen, Cristiana M Nascimento-Carvalho
AIM: To assess the role of human bocavirus 1 (HBoV1) as a causative agent of non-severe community-acquired pneumonia (CAP) in children. METHODS: Patients aged 2-59 months with non-severe CAP (respiratory complaints and radiographic pulmonary infiltrate/consolidation) attending a University Hospital in Salvador, Brazil were enrolled in a prospective cohort. From 820 recruited children in a clinical trial ( NCT01200706), nasopharyngeal aspirate (NPA), and acute and convalescent serum samples were obtained from 759 (92...
October 13, 2017: Pediatric Pulmonology
Xuefeng Deng, Wei Zou, Min Xiong, Zekun Wang, John F Engelhardt, Shui Qing Ye, Ziying Yan, Jianming Qiu
Human bocavirus 1 (HBoV1) is a human parvovirus that causes acute respiratory tract infections in young children. In this study, we confirmed that, when polarized/well-differentiated human airway epithelia are infected with HBoV1 in vitro , they develop damage characterized by barrier function disruption and cell hypotrophy. Cell death mechanism analyses indicated that the infection induced pyroptotic cell death characterized by caspase-1 activation. Unlike infections with other parvoviruses, HBoV1 infection did not activate the apoptotic or necroptotic cell death pathway...
December 15, 2017: Journal of Virology
Robert Schlaberg, Krow Ampofo, Keith D Tardif, Chris Stockmann, Keith E Simmon, Weston Hymas, Steven Flygare, Brett Kennedy, Anne Blaschke, Karen Eilbeck, Mark Yandell, Jon A McCullers, Derek J Williams, Kathryn Edwards, Sandra R Arnold, Anna Bramley, Seema Jain, Andrew T Pavia
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...
September 15, 2017: Journal of Infectious Diseases
Guijun Ning, Xuxia Wang, Dan Wu, Zundong Yin, Yixing Li, Huaqing Wang, Weizhong Yang
BACKGROUND: The aim of this systematic review was to examine the etiology of community-acquired pneumonia (CAP) among Chinese children younger than 5 y and provide evidence for further cost-effectiveness analyses for vaccine development, diagnostic strategies and empirical treatments. METHODS: The literature review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Data were obtained by searching PubMed, Embase, Web-of Science, and the Chinese databases Wanfang Data and China National Knowledge Infrastructure...
November 2, 2017: Human Vaccines & Immunotherapeutics
Ri De, Liying Liu, Yuan Qian, Runan Zhu, Jie Deng, Fang Wang, Yu Sun, Huijin Dong, Liping Jia, Linqing Zhao
Human bocaviruses (HBoVs), which were first identified in 2005 and are composed of genotypes 1-4, have been increasingly detected worldwide in pediatric patients with acute gastroenteritis. To investigate if HBoV infection is a risk factor of acute gastroenteritis in children younger than 5 years old, we searched PubMed, Embase (via Ovid), the Chinese Biomedical Literature Database (CBM), and the Cochrane Library for studies assessing the prevalence of HBoVs in individuals from Oct 25, 2005 to Oct 31, 2016...
2017: PloS One
Dan Hu, Changqiang Zhu, Yi Wang, Lele Ai, Lu Yang, Fuqiang Ye, Chenxi Ding, Jiafeng Chen, Biao He, Jin Zhu, Hui Qian, Wenrong Xu, Youjun Feng, Weilong Tan, Changjun Wang
Bats have been shown as important mammal resevoirs to carry a variety of zoonotic pathogens. To analyze pathogenic species in bats from southeast coastal regions of China, we performed metagenomic sequencing technology for high throughput sequencing of six sentinels from southeast coastal area of China. We obtained 5,990,261 high quality reads from intestine and lung tissue of 235 bats, including 2,975,371 assembled sequences. 631,490 reads predicted overlapping sequences for the open reading frame (ORF), which accounts for 2...
September 7, 2017: Scientific Reports
Hae J Kang, Sun H Kim, Jae K Chung, Soon W Lee, Seung B Choi, Hye E Eom, Ok Park, Kisoon Kim, Sung S Kim
Recent years have seen a high incidence of mumps, which is generally diagnosed based on clinical features, especially parotitis, without laboratory confirmation in Korea. To better understand the epidemiology of mumps in Korean children, we investigated sporadic suspected mumps cases with parotitis. In total, 237 buccal swabs or throat swabs collected from children with parotitis who had been clinically diagnosed with mumps were tested using real-time PCR for the detection of six viruses (Epstein-Barr virus, Human herpesvirus 6, Mumps virus, Human parainfluenza virus-1, -2, -3, Human adenovirus, Human bocavirus)...
September 6, 2017: Journal of Medical Virology
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