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      Prevalence, Antimicrobial Drug Resistance and Associated Risk Factors of Streptococcus Pneumoniae Bacteria Infection Among Under-Five Children With Acute Lower Respiratory Tract Infection Attending Sheik Hassan Yebere Referral Hospital, Jig-Jiga, Ethiopia

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          Abstract

          Background

          Pneumonia is inflammation of the lung. The Streptococcus pneumoniae ( S. pneumoniae) is commensal in the upper airway and can cause infection to under-five children. The bacteria is gram-positive diplococci, catalase negative, and optochin sensitive. The bacteria is the leading cause of bacterial pneumonia among under-five children. No similar data is reported from the current study area.

          Objective

          To determine prevalence, antimicrobial drug resistance and associated factors of S. pneumoniae infection among under-five children with acute lower respiratory tract infection attending Sheck Hassan Yebere Referral Hospital from March 1 to April 30, 2021 Jig-Jiga, Ethiopia.

          Methods

          A cross-sectional study was conducted among 374 study participants selected by convenience sampling method. A structured questionnaire was used to collect child data. Nasopharyngeal/oropharyngeal swabs were collected and diagnosed to isolate S. pneumoniae by using culture then identified by biochemical examination. Later antimicrobial drug resistance testing was performed by Kirby–Bauer disk diffusion method. All data were entered on epi-data 3.1 then exported to SPSS version 22 to calculate analysis. Statistically significant value was found by calculating an adjusted odds ratio with p-value ≤ 0.05 in a multivariate logistic regression model.

          Results

          Among 374 under-five children, 180 (48.1%) were males and 109 (29.2%) were from low income families. The overall prevalence of S. pneumoniae infection in the study was 18% (95% CI 14.4–22.2). No window (AOR=2.8 CI 1.1–7.6), no/non-exclusive breast-feeding (AOR= 2.1 CI 1.1–4.1), and previous URTI (AOR= 3.2 CI 1.7–6.1) were significantly associated with S. pneumoniae infection. The isolated organism showed drug resistance for Cotrimoxazole (35%), and Tetracycline (34%).

          Conclusion

          The prevalence and antimicrobial resistance in this study were comparatively high. No window, non-exclusive breast-feeding and previous URTI were associated with S. pneumoniae infection. The isolated S. pneumoniae showed high drug resistance to cotrimoxazole and tetracycline.

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          Most cited references35

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          Global burden of childhood pneumonia and diarrhoea

          Summary Diarrhoea and pneumonia are the leading infectious causes of childhood morbidity and mortality. We comprehensively reviewed the epidemiology of childhood diarrhoea and pneumonia in 2010–11 to inform the planning of integrated control programmes for both illnesses. We estimated that, in 2010, there were 1·731 billion episodes of diarrhoea (36 million of which progressed to severe episodes) and 120 million episodes of pneumonia (14 million of which progressed to severe episodes) in children younger than 5 years. We estimated that, in 2011, 700 000 episodes of diarrhoea and 1·3 million of pneumonia led to death. A high proportion of deaths occurs in the first 2 years of life in both diseases—72% for diarrhoea and 81% for pneumonia. The epidemiology of childhood diarrhoea and that of pneumonia overlap, which might be partly because of shared risk factors, such as undernutrition, suboptimum breastfeeding, and zinc deficiency. Rotavirus is the most common cause of vaccine-preventable severe diarrhoea (associated with 28% of cases), and Streptococcus pneumoniae (18·3%) of vaccine-preventable severe pneumonia. Morbidity and mortality from childhood pneumonia and diarrhoea are falling, but action is needed globally and at country level to accelerate the reduction.
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            Epidemiology and etiology of childhood pneumonia

            Childhood pneumonia is the leading single cause of mortality in children aged less than 5 years. The incidence in this age group is estimated to be 0.29 episodes per child-year in developing and 0.05 episodes per child-year in developed countries. This translates into about 156 million new episodes each year worldwide, of which 151 million episodes are in the developing world. Most cases occur in India (43 million), China (21 million) and Pakistan (10 million), with additional high numbers in Bangladesh, Indonesia and Nigeria (6 million each). Of all community cases, 7-13% are severe enough to be life-threatening and require hospitalization. Substantial evidence revealed that the leading risk factors contributing to pneumonia incidence are lack of exclusive breastfeeding, undernutrition, indoor air pollution, low birth weight, crowding and lack of measles immunization. Pneumonia is responsible for about 19% of all deaths in children aged less than 5 years, of which more than 70% take place in sub-Saharan Africa and south-east Asia. Although based on limited available evidence, recent studies have identified Streptococcus pneumoniae, Haemophilus influenzae and respiratory syncytial virus as the main pathogens associated with childhood pneumonia.
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              The Streptococcus pneumoniae capsule inhibits complement activity and neutrophil phagocytosis by multiple mechanisms.

              The Streptococcus pneumoniae capsule is vital for virulence and may inhibit complement activity and phagocytosis. However, there are only limited data on the mechanisms by which the capsule affects complement and the consequences for S. pneumoniae interactions with phagocytes. Using unencapsulated serotype 2 and 4 S. pneumoniae mutants, we have confirmed that the capsule has several effects on complement activity. The capsule impaired bacterial opsonization with C3b/iC3b by both the alternative and classical complement pathways and also inhibited conversion of C3b bound to the bacterial surface to iC3b. There was increased binding of the classical pathway mediators immunoglobulin G (IgG) and C-reactive protein (CRP) to unencapsulated S. pneumoniae, indicating that the capsule could inhibit classical pathway complement activity by masking antibody recognition of subcapsular antigens, as well as by inhibiting CRP binding. Cleavage of serum IgG by the enzyme IdeS reduced C3b/iC3b deposition on all of the strains, but there were still marked increases in C3b/iC3b deposition on unencapsulated TIGR4 and D39 strains compared to encapsulated strains, suggesting that the capsule inhibits both IgG-mediated and IgG-independent complement activity against S. pneumoniae. Unencapsulated strains were more susceptible to neutrophil phagocytosis after incubation in normal serum, normal serum treated with IdeS, complement-deficient serum, and complement-deficient serum treated with IdeS or in buffer alone, suggesting that the capsule inhibits phagocytosis mediated by Fcgamma receptors, complement receptors, and nonopsonic receptors. Overall, these data show that the S. pneumoniae capsule affects multiple aspects of complement- and neutrophil-mediated immunity, resulting in a profound inhibition of opsonophagocytosis.
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                Author and article information

                Journal
                Infect Drug Resist
                Infect Drug Resist
                idr
                Infection and Drug Resistance
                Dove
                1178-6973
                02 June 2023
                2023
                : 16
                : 3511-3523
                Affiliations
                [1 ]Medical Laboratory Sciences Department, School of Medicine, College of Medicine and Health Science, Jig-Jiga University , Jig-Jiga, Ethiopia
                [2 ]Public Health Department, School of Public Health, College of Medicine and Health Science, Jig-Jiga University , Jig-Jiga, Ethiopia
                [3 ]Midwifery Department, School of Nursing, College of Medicine and Health Science, Jig-Jiga University , Jig-Jiga, Ethiopia
                Author notes
                Correspondence: Surafel Mekuria, Email surafelmekuria@gmail.com
                Author information
                http://orcid.org/0000-0002-5683-6785
                http://orcid.org/0000-0001-6406-5821
                http://orcid.org/0000-0001-7017-4012
                http://orcid.org/0000-0003-0567-8737
                Article
                409919
                10.2147/IDR.S409919
                10243350
                50b54306-2781-4b24-b0c4-86dcd6fe124b
                © 2023 Mekuria et al.

                This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License ( http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms ( https://www.dovepress.com/terms.php).

                History
                : 14 March 2023
                : 19 May 2023
                Page count
                Figures: 0, Tables: 7, References: 39, Pages: 13
                Funding
                Funded by: research project was obtained from Jig-Jiga University Research Directorate;
                The funding for this research project was obtained from Jig-Jiga University Research Directorate.
                Categories
                Original Research

                Infectious disease & Microbiology
                under-five pneumonia,antimicrobial resistance,s. pneumoniae

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