TÌNH HÌNH NHIỄM PSEUDOMONAS AERUGINOSA PHÂN LẬP TỪ NGUỒN NƯỚC UỐNG TẠI CÁC TRƯỜNG MẦM NON, TIỂU HỌC VÀ MỘT SỐ YẾU TỐ LIÊN QUAN TẠI THÀNH PHỐ CẦN THƠ NĂM 2024-2025

Abstract

Background: Pseudomonas aeruginosa is an opportunistic pathogen commonly found in water and food sources. Children at preschool and primary school age often have underdeveloped immune systems, making them more vulnerable to health risks when consuming water contaminated with this bacterium. Objectives: To determine the prevalence of P.aeruginosa contamination in drinking water sources at preschools and primary schools in Can Tho city, and to identify associated factors from 2024 to 2025. Materials and methods: A cross-sectional descriptive study was conducted on 206 randomly collected drinking water samples from 72 preschools and primary schools in Can Tho City from August 2024 to March 2025. Results: The overall prevalence of P.aeruginosa contamination in drinking water samples was 23.30%. The highest contamination rate was observed in the Co Do district (36.84%, 14/38 samples), followed by the Phong Dien district (36.36%, 8/22 samples). Other districts reported the following rates: Ninh Kieu (21.91%, 16/73 samples), Binh Thuy (20.0%, 9/45 samples), and Cai Rang (3.5%, 1/28 samples). By water type, contamination rates were 22.3% for filtered water (31/139 samples), 16.32% for boiled and cooled water (8/49 samples), and 44.44% for student-supplied bottled water (8/18 samples). There was a statistically significant association between P.aeruginosa contamination and the sampling location and type of drinking water (p < 0.05). Conclusions: The prevalence of P.aeruginosa contamination in drinking water at preschools and primary schools in Can Tho City remains relatively high and is significantly associated with the school's location and type of drinking water.