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).
Conclusions
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.
Key words: Human bocavirus, Child, Respiratory tract infections
Biographies
Biographical notes of the first authors: WU Jian Jun, male, born in 1972, associate professor, PhD, major in applied microbiology
JIN Yu, female, born in 1960, chief physician, professor, doctoral tutor, major in pediatric clinical virus and pediatric digestive disease research.
Footnotes
This work was partly supported by a ‘973’ National Key Basic Research Program of China(Grant No. 2007CB310500), the Key Program of Nanjing Medical Science and Technique Development Foundation(Grant No. ZKX09008), and Medical Science and Technique Development Foundation of Jiangsu Province Health Department(Grant No. H200949).
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