Population and chigger mite infection of rodents in Pudong New Area， Shanghai

• Published in: Shanghai Yufang Yixue Vol. 35; no. 12; pp. 1218 - 1222
• Main Authors: LU Xinchen, CAI Xuyue, LIN Chen, LIU Jun, YU Siyu, YUAN Yongting, LIU Hanzhao
• Format: Journal Article
• Language: Chinese
• Published: Shanghai Preventive Medicine Association 01.12.2023
• Subjects: chigger index; chigger mite; rodent; species
• ISSN: 1004-9231
• DOI: 10.19428/j.cnki.sjpm.2023.23209

ObjectiveTo investigate the population and chigger mite infection of rodents in Pudong District， Shanghai， so as to provide the scientific basis for the prevention and control of rodents and chigger transmitted diseases.MethodsThe monitoring work was conducted in four points including Xuanqiao， Hangtou， Laogang and Nanhui New Town with night trapping method from 2020 to 2022. Habitats as farmland， wasteland， rural residential areas， and parks were selected. The rodent species were identified and rodent density was calculated. All chigger mites were collected from the earlaps and auricular fossae of the rodents. The species of chigger mites were identified and the chigger mite index was calculated.ResultsA total of 222 rodents were captured. They belonged to 5 species， 4 genera， 2 families and 2 orders， including 4 species， 3 genera， and 1 family of Rodentia and 1 species of Insectivora. M. musculus was the dominant species， with a composition ratio of 54.05%. Total 80 chigger mites were captured， with a detec