Parameter | Definition |
| constant rate of incoming susceptible |
| natural death rates |
| birth rate of newborn who are infected |
| rate of transfer I individuals to R |
| rate of infection by mosquitoes |
| rate of infections through sexual transmission |
| rate of mosquitoes infected by humans |
| effective bites between infected mosquitoes and susceptible humans |
| effective contacts from humans to humans |
| effective bites between infected humans to susceptible mosquitoes |