Table 2 The parameter descriptions and settings for calculating vectorial capacity
From: Mining geographic variations of Plasmodium vivax for active surveillance: a case study in China
Parameters | Descriptions | Values |
|---|---|---|
Gonotrophic cycle length: U=0.5+f u /(T−g u ) | ||
f u | The number of degree days needed for maturation | 36.5 ([30]) |
g u | The threshold below which gonotrophic development ceases | 9.9 ([30]) |
T | The average temperature of an individual town | MODIS ([40]) |
The probability of daily survival: p=α 1/U | ||
α | The proportion of vectors surviving each gonotrophic cycle | 0.5 ([30]) |
Sporogonic cycle length: n=f n /(T−g n ) | ||
f n | The number of degree days required for parasite development | |
g n | The threshold below which parasite development ceases | 18 °C ([30]) |
Human biting habit: a=h/U | ||
h | The human blood index | 0.7 ([30]) |
The ratio of mosquitoes to human: m=10R/P | ||
R | The average rainfall of an individual town | TRMM ([41]) |
P | The human population in an individual town | Census ([22]) |