Bài viết mô tả đặc điểm căn nguyên vi sinh vật gây viêm phổi mắc phải cộng đồng (CAP) ở trẻ 2 tháng đến 5 tuổi tại Bệnh viện Trung ương Thái Nguyên. Nghiên cứu mô tả 270 bệnh nhi từ 2 tháng đến 5 tuổi được chẩn đoán CAP điều trị nội trú từ tháng 6/2020-3/2021. | Journal of Pediatric Research and Practice Vol. 5 No. 3 2021 42-50 Research Paper Microbiological Characteristics of Community - Acquired Pneumonia in Children Aged from 2 Months to 5 Years at the Thai Nguyen Central Hospital Nguyen Thuy Dung1 Nguyen Bich Hoang2 Nguyen Thi Thu Thai1 Doan Thi Hue1 Nguyen Thi Thu Minh2 1 Thai Nguyen University of Medicine and Pharmacy 284 Luong Ngoc Quyen Thai Nguyen City Thai Nguyen 2 Thai Nguyen National Hospital 479 Luong Ngoc Quyen Thai Nguyen City Thai Nguyen Received 29 March 2021 Revised 10 May 2021 Accepted 17 June 2021 Abstract Objective To describe microbiological characteristics of community - acquired pneumonia CAP in children aged from 2 months to 5 years. Method In this cross sectional study 270 inpatients aged from 2 months to 5 years with CAP from June 2020 - March 2021 were described. Nasopharyngeal swab culture or rapid test were used to determine bacteria or RSV caused CAP. Results The rate of pneumonia was severe pneumonia . There were of positive microorganisms isolated bacteria were viruses were . The most common bacterium isolated were . The common bacterium isolated were in the children aged 2 - 12 months and in the aged 12 months to 5 years old. Rates of RSV in the children aged 2 - 12months 10 8 and aged 12 months to 5 years . Co-infection rate were 6 7 . was sensitive to Vancomycin 100 Quinolone 100 and Linezolid 100 and third generation Cephalosporin 55-62 was sensitive to Quinolone 85 7-100 Macrolid 65 and resistant to Betalactam 100 was sensitive to quinilon 85 7 Chloramphenicol 90 Aminosid 90 and resistant to Oxacillin 90 . Conlusions Microbiological causes of CAP in children ages from 2 months to 5 years positive isolated were . The most common bacterium are .