Human bocavirus infection among children, Jordan.
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ABSTRACT:
SUBMITTER: Kaplan NM
PROVIDER: S-EPMC3294754 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:Human bocavirus (HBoV) was detected in 14 (2%) of 705 fecal specimens from Brazilian children with gastroenteritis. Coinfection with rotavirus, adenovirus, or norovirus was found in 3 (21.4%) HBoV-positive specimens. None of the HBoV-positive patients had respiratory symptoms.
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Project description:BACKGROUND:The newly identified human bocavirus (HBoV), a member of the Parvoviridae family, has been associated to low respiratory tract infections in young children. OBJECTIVES:To present the epidemiological profile and the main clinical characteristics showed by children infected with this virus in Spain. STUDY DESIGN:We have studied the incidence of HBoV and other 15 respiratory viruses in 917 nasopharyngeal aspirates taken from 730 infants and children under age of 14 with acute lower respiratory tract infection from September-04 to August-06. RESULTS:HBoV was detected in 123 samples (13.4%) showing a seasonal distribution with November and December as the peak months. Out of the 558 samples which rendered a positive result for at least one of the virus tested, HBoV (22%) ranked fourth behind respiratory syncytial virus (181, 32%), adenoviruses (155, 28%) and rhinoviruses (136, 24%). Co-infections with HBoV and other respiratory viruses were detected in 74 out of 123 HBoV-positive specimens (60%). In addition, HBoV was also found in stool and, for the first time, in urine samples. CONCLUSIONS:Results obtained provide further evidence that HBoV is involved in acute lower respiratory tract infections. HBoV-associated disease should not be limited to the respiratory tract.
| S-EPMC7108365 | biostudies-literature
Project description:Human bocavirus (HBoV) has been detected primarily in children with acute lower respiratory tract disease (LRTD), but its occurrence, clinical profile, and role as a causative agent of RTD are not clear. The aim of this study was to investigate the prevalence and the potential clinical relevance of HBoV. Using molecular tests, we tested 1352 nasopharyngeal samples obtained between October 1, 2017 and April 30, 2018 from children up to the age of 16 with RTD for the presence of HBoV DNA and 20 other respiratory pathogens at three different hospitals in Belgium. HBoV was detected in 77 children with a median age of 10.6 months. Consecutive samples were available for 15 HBoV-positive children and showed persistent HBoV positivity in four of them. Monoinfection was observed in six infants. Four of them were born prematurely and were infected during hospitalization at the neonatal intensive care unit (NICU). Only one of these six monoinfected children was diagnosed with recurrent wheezing due to HBoV. This child was carried to term and had a high viral load. Coinfections, most frequently with rhinovirus (52.1%) and adenovirus (49.3%), were observed in 72 patients. In seventeen of them in which HBoV was present at high viral load or higher viral load than its copathogens, bronchi(oli)tis (n = 8), recurrent wheezing (n = 8) or episodic wheezing (n = 1) were diagnosed. Our results suggest that HBoV infection at high viral load in infants is associated with wheezing (P = 0.013, Cramer's V = 0.613).
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Project description:Human bocavirus (HBoV) and HBoV2, two human bocavirus species, were found in 18 and 10 of 235 nasopharyngeal aspirates, respectively, from children hospitalized with acute respiratory tract infection. Our results suggest that, like HBoV, HBoV2 is distributed worldwide and may be associated with respiratory and enteric diseases.
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| S-EPMC3374421 | biostudies-literature
Project description:Human Bocavirus was detected in 18 (1.5%) of 1,209 respiratory specimens collected in 2003 and 2004 in Canada. The main symptoms of affected patients were cough (78%), fever (67%), and sore throat (44%). Nine patients were hospitalized; of these, 8 (89%) were <5 years of age.
| S-EPMC3374420 | biostudies-literature
Project description:In 2005 human bocavirus (HBoV) was discovered in respiratory tract samples of children. The role of HBoV as the single causative agent for respiratory tract infections remains unclear. Detection of HBoV in children with respiratory disease is frequently in combination with other viruses or bacteria. We set up an algorithm to study whether HBoV alone can cause severe acute respiratory tract infection (SARI) in children. The algorithm was developed to exclude cases with no other likely cause than HBoV for the need for admission to the paediatric intensive care unit (PICU) with SARI. We searched for other viruses by next-generation sequencing (NGS) in these cases and studied their HBoV viral loads. To benchmark our algorithm, the same was applied to respiratory syncytial virus (RSV)-positive patients. From our total group of 990 patients who tested positive for a respiratory virus by means of RT-PCR, HBoV and RSV were detected in 178 and 366 children admitted to our hospital. Forty-nine HBoV-positive patients and 72 RSV-positive patients were admitted to the PICU. We found seven single HBoV-infected cases with SARI admitted to PICU (7/49, 14%). They had no other detectable virus by NGS. They had much higher HBoV loads than other patients positive for HBoV. We identified 14 RSV-infected SARI patients with a single RSV infection (14/72, 19%). We conclude that our study provides strong support that HBoV can cause SARI in children in the absence of viral and bacterial co-infections.
| S-EPMC7172568 | biostudies-literature
Project description:Human bocavirus (HBoV), a new member of the genus Bocavirus in the family Parvoviridae, has been recently associated with respiratory tract infections. We report the epidemiologic and clinical features observed from a 1-year retrospective study of HBoV infection in young children hospitalized with a respiratory tract infection.
| S-EPMC3291226 | biostudies-literature
Project description:This study presents the first evidence of human bocavirus infection in South Korean children. The virus was detected in 27 (8.0%) of 336 tested specimens, including 17 (7.5%) of 225 virus-negative specimens, collected from children with acute lower respiratory tract infection.
| S-EPMC3291229 | biostudies-literature
Project description:Human bocaviruses (HBoVs) 1?4 belong to the Parvoviridae family, and they infect the respiratory or gastrointestinal tracts in children. We investigated the prevalence of HBoV1?4 DNAs in the blood and stool samples, and of HBoV1?4 IgG and IgM in the plasma samples, of children presenting with acute gastroenteritis (AGE). In addition, we identified HBoV co-infections with the five most frequent gastrointestinal pathogens. A total of 83 paired blood and stool samples were collected from children aged five years or less. Infection markers of HBoV1, 2, or 3 (viral DNA in blood and/or stool and/or antibodies) were detected in 61 out of 83 (73.5%) patients. HBoV1, 2, or 3 DNA as a monoinfection was revealed in 18.1%, 2.4%, and 1.2%, respectively, and 21.7% in total. In 56.1% of the HBoV DNA-positive patients, the presence in stool of another virus-most frequently norovirus or rotavirus-was observed. In conclusion, this study, for the first time, illustrates the prevalence and genetic diversity of HBoVs in Latvian children with gastroenteritis, and shows a widespread distribution of these viruses in the community. HBoV1 and 2 are commonly found as single infectious agents in children with AGE, suggesting that the viruses can be as pathogenic by themselves as other enteric agents are.
| S-EPMC6265904 | biostudies-other