Table 2.

Parameterization used in the model developed by Dorigatti et al. [21] to estimate the risk of disease introduction, their definitions and data sources.

Parameter	Definition	Data source (references)
TD→O	Number of resident travelers in unaffected areas traveling to Latin America and the Caribbean during the epidemic time window (residency was defined by the point of ticket sale)	OAG dataset [25]
TO→D	Number of resident travelers in Latin America and the Caribbean traveling to unaffected areas during the epidemic time window (residency was defined by the point of ticket sale)
λ	Per capita risk of infection of international travelers during their stay in Latin America and the Caribbean	Refer to Equation 1.2
pH	Probability of travelers returning home while incubating or infectious	Refer to Equation 1.3
pO→D	Per capita probability that a resident of Latin America and the Caribbean travels to unaffected areas	Refer to Equation 1.5
pI	Probability that an infected case incubates or is infectious in the epidemic time window	Refer to Equation 1.6
N	Number of cases in Latin America and the Caribbean	PAHO weekly database [26]
popO	Population size of Latin America and the Caribbean
W	Epidemic time window (days)
L	Average length of stay of travelers visiting Latin America and the Caribbean (days)	U.S. Department of Commerce [ [27,28]]
TE	Intrinsic incubation period (days)	Publication [29]
TI	Human infectious period (days)	Publication [ [30,31]]