Table 1.
Default parameters in the study.
| Symbol | Value | Definition |
|---|---|---|
| R0 | 1.8 (Balcan et al., 2009, Lessler et al., 2009, Merler et al., 2011) | Basic reproductive number: the average new cases (i.e., infections) arise from a single primary case (Fraser et al., 2009) |
| β | 1.56 × 10−3 person−1 · h−1 | Transfer rate: average infection probability of a susceptible individual contact with an infected individual |
| γ | 0.014 h−1 | Recovery rate: the transition rate from susceptible to recovered |
| δ | 2.34% (CNTA (China National Tourism Administration) 2017, National Bureau of Statistics of China (NBSC) 2018) | Travel rate: the ratio of tourists in a city to citizens of the city |
| N | 400 people/day (Hyman and LaForce, 2003) | Interpersonal contact number per day: the number of people that a person contacts on average per day |
| Nr | N/50 | Number of confined spaces in a city |
| Pgo, Δt | – | The probability of a resident deciding to travel to other cities after time Δt |
| Pback, Δt | 1.57 × 10−2 h−1 | The probability of a tourist deciding to return to their home city after travel time Δt |