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Published on: February 23, 2014
Prevalence of Mycoplasma pneumoniae Infection in Malagasy Children
Lova Ravelomanana1, Naim Bouazza, Mbola Rakotomahefa
1From the *Service de Pédiatrie, Hôpital Ambohimiandra, Antananarivo, Madagascar; †URC, University Paris Descartes, Hôpital Cochin, Paris, France; ‡Service de Pédiatrie, Hôpital Befelatanana, §Service de Pédiatrie, Hôpital Soavinandriana, and ¶Service de Pédiatrie, Hôpital Tsaralanana, Antananarivo, Madagascar; ‖Service de Pédiatrie, Hôpital Be, Toamasina, Madagascar; **Service de Néonatologie, Befelatanana, Madasgascar; ††Bacteriology, University Paris Descartes, Hôpital Cochin, Paris, France; ‡‡Institut Pasteur, Antananarivo, Madagascar; §§Departement Recherche, Direction du service de santé des Armées, Hôspital Bégin, Paris, France; and ¶¶Association Jeremi Rhônes-Alpes, Jeremi, Rhônes-Alpes, France.
Background:
Childhood community-acquired pneumonia is a leading cause of childhood morbidity in low-income countries. The etiologic agents are usually Staphylococcus aureus, Streptococcus pneumoniae and Mycoplasma pneumoniae. M. pneumoniae was recognized as a cofactor in asthmatic disease. High asthma prevalence was reported in Madagascar. Our aim was to clarify the prevalence of M. pneumoniae infection in this country and its relationship with asthma.
Methods:
A prospective study was conducted in 351 children (from 2 to 16 years of age) from January 2012 to December 2014. According to the clinical symptoms, children were enrolled in 3 groups: "control group" (CG, n = 106), "asthma group" (n = 129) and "pneumonia group" (n = 116). The IgG and IgM M. pneumoniae status was evaluated by an enzyme-linked immunosorbent assay. Clinical signs of infection, socioeconomic data and antimicrobial treatment were recorded.
Results:
The overall prevalence of M. pneumoniae infection was 18.2%. The multivariate analysis demonstrated that M. pneumoniae infection was significantly more frequent in the CG [pneumonia group vs. CG: odds ratio = 0.45 (0.21-0.91), P = 0.037 and asthma group vs. CG: odds ratio = 0.39 (0.18-0.87), P = 0.021]. The C-reactive protein value was significantly higher in children with M. pneumonia-positive serology (85 vs. 61 mg/L, P = 0.03). Of note, 99 (41%) children received antibiotics before attending.
Conclusions:
We report a prevalence of 18.2% for M. pneumoniae infection in children in Madagascar. The prevalence of M. pneumoniae infection was higher in the control patients than in asthmatic ones.
Insights
Mycoplasma pneumoniae infection affects 18.2% of children in Madagascar. This infection was more common in healthy children than those with asthma or pneumonia, suggesting a complex relationship.
Area of Science:
- Pediatric infectious diseases
- Respiratory health
- Microbiology
Background:
- Childhood community-acquired pneumonia is a significant cause of illness in low-income nations.
- Key pathogens include Staphylococcus aureus, Streptococcus pneumoniae, and Mycoplasma pneumoniae.
- Mycoplasma pneumoniae is a known cofactor in asthma development, and Madagascar has a high asthma prevalence.
Purpose of the Study:
- To determine the prevalence of Mycoplasma pneumoniae infection in children in Madagascar.
- To investigate the association between Mycoplasma pneumoniae infection and asthma in this population.
Main Methods:
- A prospective study involved 351 children aged 2-16 years from 2012-2014.
- Children were categorized into control, asthma, and pneumonia groups.
- Enzyme-linked immunosorbent assays (ELISA) were used to detect IgG and IgM antibodies for Mycoplasma pneumoniae.
Main Results:
- The overall prevalence of Mycoplasma pneumoniae infection was 18.2%.
- Infection was significantly more frequent in the control group compared to both the pneumonia and asthma groups (OR=0.45 and OR=0.39, respectively).
- Children with M. pneumoniae-positive serology had higher C-reactive protein levels (85 vs. 61 mg/L).
Conclusions:
- Mycoplasma pneumoniae infection prevalence in Malagasy children is 18.2%.
- The study found a higher prevalence of Mycoplasma pneumoniae infection in healthy children compared to asthmatic children.
- These findings suggest Mycoplasma pneumoniae may play a complex role in childhood respiratory illnesses, including asthma.
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