Table 1. Description of the parameters used for the dengue basic reproductive number model.
Description | Formula/calculation | |
---|---|---|
a | Frequency of the vector mosquito feeding on a person/day | a = C/x |
C | Proportion of mosquitoes feeding on human blood instead of other animals | 0.99 [37] |
x | Gonotrophic cycle length, measured by the interval between blood meals taken | Conservative estimate of 4.5 days [38] |
r | Rate of human recovery (1/number of days) |
Four to five days [36, 39–41] So, 1/4.5 |
ma | Number of mosquito bites per person/day | Average number of mosquitoes collected per person/day during the adult mosquito sampling study |
μ | Mortality rate of female mosquitoes | 1- p |
p | Daily survival probability of adult mosquitoes | A1/X |
A | Average proportion of parous mosquitoes | Proportion parous from the mosquito survival data |
n | Development days of virus in mosquito | Using graph [42] with Average Tdry in study area = 23.2 °C Average Train in study area = 23.3 °C |
b | Proportion of female mosquitoes infective after taking infective blood meal | 0.4 [36, 43] |
d | Transmission from human to mosquito | 0.4 [36, 43] |