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Tran XD, Hoang VT, Goumballa N, Vu TN, Tran TK, Pham TD, Dao TL, Vu TT, Nguyen DC, Nguyen QT, Marty P, Gautret P. Viral and bacterial microorganisms in Vietnamese children with severe and non-severe pneumonia. Sci Rep 2024; 14:120. [PMID: 38167637 PMCID: PMC10761988 DOI: 10.1038/s41598-023-50657-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024] Open
Abstract
To investigate potential respiratory pathogens in children with community-acquired pneumonia (CAP) and risk factors for severe disease. This prospective study was conducted among 467 children at the Thai Binh Paediatric Hospital, Vietnam between 1 July 2020 and 30 June 2021. Clinical data and laboratory results were collected. Twenty-four respiratory microorganisms were tested from nasopharyngeal swabs using real-time PCR. Logistical regression was used to estimate a factor's adjusted odd ratios of the severity of disease. Mean age of patients = 15.4 ± 13.3 months, 63.0% were male. Over 97% of patients had a positive PCR result. 87% of patients were positive for multiple (up to eight) microorganisms. Rhinovirus (46%), respiratory syncytial virus (RSV) (24%), enterovirus (17%), and parainfluenza viruses-3 (13%) were the most frequent viruses. H. influenzae (61%), S. pneumoniae (45%) and M. catarrhalis (30%) were the most common bacteria. 128 (27%) cases were classified as severe pneumonia. Presence of smokers at home (aOR 2.11, 95% CI 1.27-3.52, P value = 0.004), CRP level ≥ 50 mg/dL (aOR 6.11, 95% CI 3.86-9.68, P value < 0.0001), RSV (aOR 1.78, 95% CI 1.07-2.96, P value = 0.03) and H. influenzae (aOR 1.66, 95% CI 1.03-2.67, P value = 0.04) PCR detection associated with a higher risk of severe pneumonia; ,. Causative agents of pneumonia in children are complex. Children positive with RSV and H. influenzae need to be closely monitored to prevent severe pneumonia.
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Affiliation(s)
- Xuan Duong Tran
- Thai Binh University of Medicine and Pharmacy, Thai Binh, Vietnam
- Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille Cedex 05, France
- IRD, AP-HM, SSA, VITROME, Aix Marseille University, Marseille, France
| | - Van-Thuan Hoang
- Thai Binh University of Medicine and Pharmacy, Thai Binh, Vietnam
| | - Ndiaw Goumballa
- Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille Cedex 05, France
| | | | | | - Thi Dung Pham
- Thai Binh University of Medicine and Pharmacy, Thai Binh, Vietnam
| | - Thi-Loi Dao
- Thai Binh University of Medicine and Pharmacy, Thai Binh, Vietnam
| | - Thi Thuy Vu
- Thai Binh Paediatric Hospital, Thai Binh, Vietnam
| | - Duy Cuong Nguyen
- Thai Binh University of Medicine and Pharmacy, Thai Binh, Vietnam
| | - Quoc Tien Nguyen
- Thai Binh University of Medicine and Pharmacy, Thai Binh, Vietnam
| | - Pierre Marty
- Inserm, C3M, Université Côte d'Azur, Nice Cedex 3, France
- Parasitologie-Mycologie, Centre Hospitalier Universitaire l'Archet, Nice Cedex 3, France
| | - Philippe Gautret
- Thai Binh University of Medicine and Pharmacy, Thai Binh, Vietnam.
- Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille Cedex 05, France.
- IRD, AP-HM, SSA, VITROME, Aix Marseille University, Marseille, France.
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Merida Vieyra J, De Colsa Ranero A, Palacios Reyes D, Murata C, Aquino Andrade A. Chlamydophila pneumoniae-associated community-acquired pneumonia in paediatric patients of a tertiary care hospital in Mexico: molecular diagnostic and clinical insights. Sci Rep 2023; 13:21477. [PMID: 38052876 PMCID: PMC10698025 DOI: 10.1038/s41598-023-48701-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/29/2023] [Indexed: 12/07/2023] Open
Abstract
Chlamydophila pneumoniae is a cause of community-acquired pneumonia (CAP) and responsible for 1-2% of cases in paediatric patients. In Mexico, information on this microorganism is limited. The aim of this study was to detect C. pneumoniae using two genomic targets in a real-time PCR and IgM/IgG serology assays in paediatric patients with CAP at a tertiary care hospital in Mexico City and to describe their clinical characteristics, radiological features, and outcomes. A total of 154 hospitalized patients with diagnosis of CAP were included. Detection of C. pneumoniae was performed by real-time PCR of the pst and arg genes. Complete blood cell count, C-reactive protein measurement and IgM and IgG detection were performed. Clinical-epidemiological and radiological data from the patients were collected. C. pneumoniae was detected in 25 patients (16%), of whom 88% had underlying disease (P = 0.014). Forty-eight percent of the cases occurred in spring, 36% in girls, and 40% in children older than 6 years. All patients had cough, and 88% had fever. Interstitial pattern on chest-X-ray was the most frequent (68%), consolidation was observed in 32% (P = 0.002). IgM was positive in 7% and IgG in 28.6%. Thirty-six percent presented complications. Four percent died. A high proportion showed co-infection with Mycoplasma pneumoniae (64%). This is the first clinical report of C. pneumoniae as a cause of CAP in Mexican paediatric patients, using two genomic target strategy and serology. We found a frequency of 16.2% with predominance in children under 6 years of age. In addition; cough and fever were the most common symptoms. Early detection of this pathogen allows timely initiation of specific antimicrobial therapy to reduce development of complications. This study is one of the few to describe the presence of C. pneumoniae in patients with underlying diseases.
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Affiliation(s)
- Jocelin Merida Vieyra
- Laboratory of Molecular Microbiology, Instituto Nacional de Pediatria, Insurgentes Sur 3700C, Insurgentes Cuicuilco, Coyoacan, 04530, Mexico City, Mexico
| | - Agustín De Colsa Ranero
- Department of Paediatric Infectious Diseases, Instituto Nacional de Pediatria, Mexico City, Mexico
| | - Deborah Palacios Reyes
- Department of Paediatric Infectious Diseases, Instituto Nacional de Pediatria, Mexico City, Mexico
| | - Chiharu Murata
- Department of Research Methodology, Instituto Nacional de Pediatria, Mexico City, Mexico
| | - Alejandra Aquino Andrade
- Laboratory of Molecular Microbiology, Instituto Nacional de Pediatria, Insurgentes Sur 3700C, Insurgentes Cuicuilco, Coyoacan, 04530, Mexico City, Mexico.
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