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Updated: May 2, 2026

An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
Published on: December 10, 2013
Human bocavirus respiratory infection in infants in Córdoba, Argentina
Laura Moreno1, Leticia Eguizábal1, Lucía María Ghietto2
1Cátedra de Clínica Pediátrica, FCM, UNC.
Insights
Human bocavirus (HBoV) was found in 6.8% of children hospitalized with acute respiratory infection (ARI). Most HBoV cases presented as pneumonia, with no severe outcomes or complications at discharge.
Area of Science:
- Pediatric Infectious Diseases
- Virology
- Respiratory Medicine
Background:
- Human bocavirus (HBoV) is a potential cause of acute respiratory infection (ARI) in children, but its clinical features remain unclear.
- Previous studies suggest a variable prevalence of HBoV in pediatric ARI cases, ranging from 0.9% to 33%.
Purpose of the Study:
- To determine the prevalence of HBoV in hospitalized children with ARI.
- To describe the clinical characteristics of HBoV-infected children, focusing on cases without co-infections.
Main Methods:
- A total of 222 children under 2 years old hospitalized with ARI were screened for HBoV using traditional PCR.
- Nasal secretions were collected, and demographic, clinical, and radiological data were recorded for all participants.
- Co-infections were identified through clinical data and laboratory results.
Main Results:
- HBoV was detected in 15 out of 222 children (6.8% prevalence).
- The median age of HBoV-positive children was 3.5 months; 7 out of 15 cases had co-infections with other respiratory viruses or bacteria.
- Among HBoV cases without co-infection (8 cases), pneumonia was the predominant diagnosis (5/8), with most requiring oxygen therapy and bronchodilators.
Conclusions:
- HBoV was identified in 6.8% of hospitalized children with ARI, with pneumonia being the most common diagnosis.
- HBoV infections in this cohort did not present with severe cases or complications upon discharge.
- Further research is needed to fully elucidate the clinical spectrum of HBoV in pediatric respiratory infections.
Unlabelled:
It has been suggested that human bocavirus (HBoV) is related to acute respiratory infection (ARI) in children (prevalence: 0.9% to 33%) although clinical characteristics have not been clearly established yet.
Objectives:
To identify the presence of HBoV in patients with ARI hospitalized in Hospital de Niños de Córdoba and describe cases without co-infection.
Method:
HBoV screening was done by traditional PCR. Specimens to be screened were obtained from nasal secretions of 222 children under 2 years of age hospitalized due to an ARI during 2011. Demographic, clinical and radiological data were recorded.
Results:
Fifteen HBoV+ patients (6.8%) were identified. Their median age was 3.5 months (range: 1-22), 7/15 in co-infection (5 respiratory syncytial virus, 1 parainfuenza-3, 1 Bordetella pertussis). Cases without co-infection: pneumonia 5/8, bronchiolitis 3/8; two required intermediate care, 7/8 oxygen therapy, 7/8 bronchodilators, 6/8 antibiotics; associated disease 1/8 (microcephalus/heart disease).
Conclusions:
HBoV was identified in 15 out of 222 children (6.8%); the diagnosis of pneumonia was predominant without severe cases nor complications upon discharge.
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Arboviral Encephalitis
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Viral Meningitis
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The first classification is based on the development of the disease, and it includes the following categories:

