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Experimental Viral Infection in Adult Mosquitoes by Oral Feeding and Microinjection
Published on: July 28, 2022
Notified Vector-Borne Diseases - China, 2005-2024.
Qiyong Liu1,2, Haoqiang Ji1,2, Meng Shang1,2
1National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
Vector-borne diseases in China show shifting trends, with declining mosquito and rodent-borne illnesses but increasing tick-borne and other types. Scrub typhus, dengue, and SFTS are expanding geographically, requiring public health attention.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- Vector-borne diseases (VBDs) pose a significant global health challenge.
- Understanding the epidemiological dynamics of VBDs in China is crucial for effective control.
Purpose of the Study:
- To analyze the epidemiological characteristics, temporal trends, and spatial distribution of 14 types of VBDs in China from 2005 to 2024.
- To provide evidence for developing targeted prevention and control strategies.
Main Methods:
- Utilized data from the China National Infectious Disease Surveillance System for 14 VBDs (2005-2024).
- Categorized VBDs into mosquito-borne, tick-borne, rodent-borne, and other types.
- Applied the Mann-Kendall trend test to assess temporal and spatial patterns.
Main Results:
- Over 1.1 million VBD cases were reported; scrub typhus, malaria, HFRS, dengue, and schistosomiasis comprised 88.4%.
- Mosquito-borne and rodent-borne diseases showed declining trends, while tick-borne and other VBDs increased significantly (P<0.05).
- Dengue, scrub typhus, and SFTS exhibited significant geographic expansion.
Conclusions:
- VBD burden in China remains substantial, with an increasing trend in the last five years.
- The rising incidence and geographic spread of scrub typhus, dengue, and SFTS require urgent public health intervention.
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