Epidemiology of Germs isolated from broncho-pulmonary infections at Batna’s PHE (2018-2022)

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Bronchopulmonary infections (BPIs) are a real public health problem, both in terms of frequency and treatment difficulties. They represent a pathogenic germs reservoir whose occurrence progresses over time, posing a serious therapeutic problem. The aim of this study was to estimate the pulmonary infections prevalence and to study the germs isolated epidemiology at Batna’s PHE. This work is a retrospective descriptive epidemiological study carried out over an extending period from January 2018 to December 2022, covering all pulmonary origin samples received at the central laboratory of the Batna’s Public Hospitalian Establishment (PHE Batna). 2,393 total samples were analyzed. The prevalence of IBPs was 10.44%. In our study, we found a women predominance (54.40%), the percentage of IBPs in adults was 88.80% and 11.20% in children. The greatest number of people infected was in autumn, 34.40% compared with 28% in winter and 21.20% in spring, while only 17.20 were found in summer. The majority isolated strains were Gram-negative bacilli, with BNF accounting for (40%) of isolates. Pseudomonas aeruginosa ranked first (22.69%), followed by Streptococcus D (12.69%), Escherichia coli (9.32%), Pseudomonas sp. (8.84%), Haemophilus sp. (5.38%), Klebsiella pneumoniae (5%), Branhamella sp. (5%) and Streptococcus sp. (4.61%). These results may help to better understand and manage PBI in this region, focusing on the most frequent strains for the appropriate therapeutic strategies development.