Giám sát quan tâm cộng đồng về sốt xuất huyết qua Google Trends: Một nghiên cứu mô tả không gian-thời gian

Dengue fever continues to pose a significant public health challenge in Vietnam, with its incidence and severity exacerbated by climate change, urbanization, and population mobility. Traditional epidemiological surveillance systems, while foundational, often face limitations such as reporting delays and uneven coverage. In this context, the integration of digital tools like Google Trends offers a novel and timely approach to enhance disease monitoring. By leveraging real-time, low-cost data reflecting community interest in health topics, Google Trends has demonstrated its value as a complementary indicator in infectious disease surveillance, including dengue. This study aims to explore the spatio-temporal trends of search queries related to dengue fever in Vietnam from 2024-2025, providing valuable insights to improve risk communication, policy planning, and rapid response strategies.

Public health researchers, epidemiologists, healthcare policymakers, and health communication specialists in Vietnam.

This descriptive study investigated community interest in dengue fever in Vietnam from August 2024 to July 2025 using Google Trends data. Analyzing Vietnamese keywords related to dengue fever, the research employed secondary data processed with Excel, and utilized the Search Volume Index (SVI) to identify temporal and geographical patterns. Results indicated a significant increase in search interest in November 2024 (SVI: 95), followed by a decline to its lowest point in April 2025 (SVI: 29), before rising again by July 2025. Geographically, localities such as Hai Phong, Dak Nong, and Quang Binh exhibited high search levels, reflecting regional and seasonal disease dynamics. The most frequently searched terms included "Dengue fever" (100) and "having Dengue fever" (93), while terms related to treatment and testing showed considerably lower interest (18-21). This suggests that while there is strong public awareness of the disease concept and symptoms, information seeking on clinical management and prevention is less prominent. The findings underscore the potential of Google Trends as a valuable complementary tool for epidemiological surveillance and public health communication, offering real-time insights into community concerns. Its application can aid in identifying potential outbreak hotspots and informing targeted interventions, although integration with real-world epidemiological data is crucial for enhanced accuracy and practical utility.