Measurement of local populations of Aedes aegypti (L.) for variation in dengue-2 vector efficiency in an area of known virus transmission
Issued Date
2024
Copyright Date
1992
Resource Type
Language
eng
File Type
application/pdf
No. of Pages/File Size
xiii, 152 leaves : ill. (some col.)
Access Rights
open access
Rights
ผลงานนี้เป็นลิขสิทธิ์ของมหาวิทยาลัยมหิดล ขอสงวนไว้สำหรับเพื่อการศึกษาเท่านั้น ต้องอ้างอิงแหล่งที่มา ห้ามดัดแปลงเนื้อหา และห้ามนำไปใช้เพื่อการค้า
Rights Holder(s)
Mahidol University
Bibliographic Citation
Thesis (M.Sc. (Environmental Biology))--Mahidol University, 1992
Suggested Citation
Wanchad Sumanochitrapon Measurement of local populations of Aedes aegypti (L.) for variation in dengue-2 vector efficiency in an area of known virus transmission. Thesis (M.Sc. (Environmental Biology))--Mahidol University, 1992. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/99981
Title
Measurement of local populations of Aedes aegypti (L.) for variation in dengue-2 vector efficiency in an area of known virus transmission
Alternative Title(s)
การวัดความผันแปรของประสิทธิภาพในการเป็นพาหะนำเชื้อ dengue 2 ของประชากรยุงลาย (Aedes aegypti) ในพื้นที่ที่มีการระบาด
Author(s)
Advisor(s)
Abstract
Temperature, larval density, and food availability had a distinct effect on body sizes and survival rate of Aedes aegypti (L.) in laboratory. Larval density was inversely correlated with body size and survival rate. Based on this experiment, the three size-class Aedes aegypti adult females were reared for studying their comparative susceptibility to dengue-2 virus by oral infection. Results showed that body size significantly affected infection rate, with 10.7 percent for large, 5.6 percent for medium, and 5.7 percent for small infected mosquitoes. The source of mosquitoes also significantly affected infection rate, with 5 percent for Bangkok and with 8.5 percent and 10.7 percent for the two villages in Chachoengsao Province. There was variation in body size of Aedes aegypti mosquitoes in nature. Average wing lengths of emerging and resting adults in a rural Thai community were significantly different. The number of adult females resting indoors was more than that resting outdoors, but no significant differences in the average wing lengths were detected between the two groups. These results indicate that large size mosquitoes had a higher survival rate and possibly moved freely between indoors and outdoors although they preferred to rest indoors. In conclusion, both locations and sizes of Aedes aegypti mosquitoes were important in dengue epidemics.
Description
Environmental Biology (Mahidol University 1992)
Degree Name
Master of Science
Degree Level
Master's degree
Degree Department
Faculty of Science
Degree Discipline
Environmental Biology
Degree Grantor(s)
Mahidol University