Epidemiological study of Escherichia coli distribution in the Mila region, correlation with meteorological parameters

Abstract

n order to determine the epidemiological and clinical characteristics of human Escherichia coli in the district of Mila, we developed a retrospective study during a period extending from January (2012 to December 2022), and the other prospective during three-months (January-March 2023 ). We collected the data at the level of Bacteriology laboratory of the General Hospital Maglaoui Brothers Mila, for the retrospective descriptive nalytical study we treated 14596 examinations, 495 were positive, an infestation rate of 3.39%. -Of the positive cases, 66.87% were female and 33.13% were male. - Patients aged (20-44 years) are the most exposed to E. coli. -The years 2019 and 2020 had the highest infection rates, 4.45% and 4.45% respectively. -The spread of these bacteria was observed during the fall season. -A high rate of this bacterium was noted during the months of November, December.-The climatic conditions of Mila region, like the ambient emperature increase the dissemination of the bacteria. Sunshine, average humidity, precipitation, and average monthly wind speed cause a decrease in the bacterial index of Escherichia coli. The results obtained during the three months of our prospective study (January-March 2023), confirmed what we deduced from the results above (The retrospective study from 2012 to 2022).