XÉT NGHIỆM PHÂN TỬ VI-RÚT DENGUE, CHIKUNGUNYA, ZIKA TRONG MẪU HUYẾT THANH BỆNH NHÂN THU THẬP TẠI BỆNH VIỆN QUÂN Y 120 VÀ 121 TỪ THÁNG 10/2022 ĐẾN THÁNG 11/2023

Infectious diseases caused by Dengue, Chikungunya, and Zika viruses are global public health issues. Vietnam is in an endemic area, so monitoring of mosquito-borne viruses needs to be performed regularly. The purpose of this study focuses on determining the circulation of Chikungunya, Zika viruses and serotype of Dengue virus in serum samples, collected from people who came for examination and from patients at the Military Hospitals №120, №121, Military Region 9, Vietnam. A cross-sectional descriptive study was conducted among 615 patients visiting the hospitals. RNA viruses were determined using real-time RT-PCR technique. Test results identified 131/615 (21.3%) of serum samples positive for Dengue virus, of which serotype DENV-2 dominated with a rate of 49.6% (65/131 positive samples), followed by DENV-1 (31.3%, 41 samples), DENV-4 (19.1%, 25 samples); no DENV-3 was detected. There were 32 samples (5.2%) positive for Zika virus, 11 samples (1.8%) positive for Chikungunya virus. Co-infection occurred between serotypes of Dengue virus (4 samples), Dengue - Chikungunya (2 samples), Dengue - Zika (8 samples). The highest rate of viral infection was recorded in the group of patients under the age of 15 (30.8%); the rate of viral infection was similar for both men and women.