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CCDC Weekly RSS Feed2026 Vol. 8, No. 11
Dengue fever (DF) is a major mosquito-borne disease in tropical and subtropical regions. Transmission shows seasonal and spatial patterns and is associated with meteorological factors, including temperature and precipitation.
From 2012–2024, dengue fever in Yunnan Province showed seasonal peaks and significant spatial and spatiotemporal clusters, particularly in border prefectures. Temperature and precipitation were key drivers of dengue incidence.
Integrating meteorological indicators into dengue surveillance and early warning systems may improve outbreak prevention and control in high-risk border areas.
Aedes mosquitoes commonly breed in domestic water-holding containers; however, rooftop environments are difficult to access and are often absent from routine surveillance, especially in densely populated urban settings.
This study demonstrated that unmanned aerial vehicles (UAVs) can rapidly and reliably identify rooftop water-holding containers, reduce on-site inspection workload by 67.7%, and provide early indications of seasonal changes in Aedes larval activity. UAV-detected containers were closely aligned with ground-verified entomological indices.
Integrating UAV-assisted surveillance into routine vector control programs could strengthen early detection of Aedes breeding sites, improve operational efficiency, and support targeted dengue prevention efforts in urban communities.
Effective on-site disinfection of epidemic foci is a critical role in preventing the transmission of infectious diseases. On-site disinfection service providers (ODSP) are a key force in the emergency response systems. This study assessed ODSP capabilities and developed a standardized evaluation indicator system to aid managers in provider selection and supervision.
A capability evaluation indicator system for ODSP was developed and applied to 88 providers in Shanghai in 2024. Receiver operating characteristic (ROC) curves were plotted by correlating the capability evaluation scores of ODSP with historical disinfection efficacy to determine the optimal threshold. Kappa consistency analysis evaluated the agreement between the new scoring system and historical performance outcomes.
The scoring rates for management systems, material reserves, personnel capability, and quality control were 93.75%, 90.45%, 75.08%, and 51.97%, respectively. ODSP with a history of failed on-site disinfection efficacy evaluations scored significantly lower in personnel capability and quality control than those with consistently passing evaluations (P<0.01). The area under the ROC curve (AUC) for the assessment indicators was 0.954 [95% confidence interval (CI): 0.898, 1], with an optimal capability score threshold of 70 points. The Kappa coefficient was 0.822.
ODSP should further strengthen its quality control measures. There is a significant gap in capability scores among these providers; therfore a hierarchical certification system should be established. The evaluation indicator system for these providers can serve as a tool to assist in dynamic supervision.
In 2023, the emergence of the mpox virus (MPXV) subclade Ⅰb in the Democratic Republic of the Congo triggered a new wave of mpox outbreaks that subsequently spread to other African countries and beyond. Policies provide the framework for mpox epidemic prevention and control in China, requiring systematic analysis of policy evolution and content characteristics. This study employs policy tool theory to construct a three-dimensional analytical framework encompassing policy instruments (X), policy objects (Y), and policy measures (Z), and utilizes content analysis methodology to evaluate China’s national regulatory mpox prevention and control policies. The results demonstrate that China’s national-level mpox prevention and control policies are in substantial agreement with the World Health Organization (WHO) core recommendations, with distinct emphases on the application of policy instruments, policy objects and policy measures, the prioritization of comprehensive epidemic response capabilities, and aligning with both domestic and international mpox epidemic conditions and national prevention strategies. Moving forward, China should further enhance its mpox prevention and control system resilience by optimizing vaccine strategies and expanding social mobilization initiatives.
