Results:
For the Mpox epidemic from 2023-05-31 to 2023-06-21 in Beijing, we calculated the R e = 1.68 [95% HPD:1.12, 2.41], being considerably larger than the critical value of 1 (Figure 1), which is consistent with other studies on the early transmission of Mpox in European countries [5]. We also calculate k = 2.57 [95% HPD: 0.54, 83.88] and the quantity of p80 (i.e., the (smallest) fraction of individuals responsible for 80% of secondary infections on average) as 0.25. These quantities do not indicate high degree of transmission heterogeneity.