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Saghar Safamanesh, Amir Azimian, Abdolreza Shakeri, Kiarash Ghazvini, Saeid Amel Jamehdar, Mahsa Khosrojerdi, Masoud Youssefi
Porcine bocavirus (PBoV) is a recently discovered virus classified within the Bocavirus genus. We present a case of upper respiratory tract infection associated with PBoV in a three-year-old child who was in close contact with hogs in northeastern Iran. To the best of our knowledge, this is the first report on the human PBoV infection. Upcoming reports from different regions of the world could provide a generalized view of the spread of pig-to-human transmission of the virus.
March 15, 2018: Pediatric Infectious Disease Journal
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
Chunguo Liu, Fei Liu, Zhigang Li, Liandong Qu, Dafei Liu
Feline bocavirus (FBoV) is a newly identified bocavirus of cats in the family Parvoviridae. A novel FBoV HRB2015-LDF was first identified from the cat with severe enteritis in Northeast China, with an overall positive rate of 2.78% (1/36). Phylogenetic and homologous analysis of the complete genome showed that FBoV HRB2015-LDF was clustered into the FBoV branch and closely related to other FBoVs, with 68.7-97.5% identities. And the genes of VP1, NPA and NS1 shared 70.7-97.6%, 72.4-98.6%, and 67.2-98.0% nucleotide identities with other FBoVs, respectively...
February 20, 2018: Journal of Veterinary Medical Science
Valeria Biscaro, Giorgio Piccinelli, Franco Gargiulo, Giovanni Ianiro, Arnaldo Caruso, Francesca Caccuri, Maria Antonia De Francesco
Enteric viral infections are a major concern for public health, and viral acute gastroenteritis is the principal cause of pediatric morbidity and mortality worldwide, mostly in developing countries. The purpose of this study was to determine the prevalence of different enteric viruses detected in a pediatric population with acute gastroenteritis symptoms, and to characterize the strains detected. Stools were collected from children, aged from 2 months to 15 years old, admitted to one of the main hospitals of Northern Italy, between November 2015 and October 2016...
February 10, 2018: Infection, Genetics and Evolution
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
Paul Edgar Gray, Bella Shadur, Susan Russell, Richard Mitchell, Kerri Gallagher, Kevin Thia, Pamela Palasanthiran, Ilia Voskoboinik
Single gene defects that impair lymphocyte cytotoxicity can predispose to severe viral infection that normally remains subclinical. The classic severe presentation is hemophagocytic lymphohistiocytosis. Here, we report the case of a neonate who presented with cytomegalovirus palatal ulceration and bocavirus pneumonitis secondary to impaired cytotoxicity caused by biallelic mutations in the UNC13D gene.
February 3, 2018: Journal of the Pediatric Infectious Diseases Society
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
Minna Honkila, Marjo Renko, Irma Ikäheimo, Tytti Pokka, Matti Uhari, Terhi Tapiainen
AIM: Our aim was to study prospectively the aetiology of neonatal conjunctivitis in a population-based setting. METHODS: Altogether 173 neonates with clinical conjunctivitis aged on average 20 (SD 10) days were recruited from child welfare clinics in Oulu, Finland, in 2010-2015. Conjunctival specimens were collected from 167 neonates for multiplex polymerase chain reaction to detect 16 respiratory viruses, from 163 for polymerase chain reaction to detect Chlamydia trachomatis and Neisseria gonorrhoeae and from 160 for bacterial culture studies...
January 18, 2018: Acta Paediatrica
Xue-Yan Zheng, Yan-Jun Xu, Wei-Jie Guan, Li-Feng Lin
Despite increased understanding of how viral infection is involved in asthma exacerbations, it is less clear which viruses are involved and to what extent they contribute to asthma exacerbations. Here, we sought to determine the prevalence of different respiratory viruses during asthma exacerbations. Systematic computerized searches of the literature up to June 2017 without language limitation were performed. The primary focus was on the prevalence of respiratory viruses, including AdV (adenovirus), BoV (bocavirus), CoV (coronavirus), CMV (cytomegalovirus), EnV (enterovirus), HSV (herpes simplex virus), IfV (influenza virus), MpV (metapneumovirus), PiV (parainfluenzavirus), RV (rhinovirus) and RSV (respiratory syncytial virus) during asthma exacerbations...
January 11, 2018: Archives of Virology
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
Daniel Mohan Jacob, Chee Yien Lee, Siti Suri Arshad, Gayathri Thevi Selvarajah, Faruku Bande, Bee Lee Ong, Peck Toung Ooi
Several strains of porcine bocaviruses have been reported worldwide since their first detection in Sweden in 2009. Subsequently, the virus has been reported to be associated with gastrointestinal and respiratory signs in weaner and grower pigs. Although Malaysia is host to a self-sufficient swine livestock industry, there is no study that describes porcine bocavirus in the country. This report is the first to describe porcine bocavirus (PBoV) in Malaysian swine herds. PBoV was identified in various tissues from sick and runt pigs using the conventional PCR method with primers targeting conserved regions encoding for the nonstructural protein (NS1) gene...
December 14, 2017: Tropical Animal Health and Production
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
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