Table 1. Input dataset used in the risk assessment framework.

		Data source	Website
Stage 1	Index-case potential
	Confirmed A (H7N9) human cases	EMPRES Global Animal Disease Information System (EMPRES-i)	empres-i.fao.org/eipws3g/bioclimatic
	Environmental variables	WorldClim database	worldclim.org/version2
	Global poultry density data	Gridded Livestock of the World	www.fao.org/ag/againfo/resources/en/glw/home.html
Stage 2	Epidemic potential
	Exposure to risks
	Index-case potential Outputs of Stage 1
	Vulnerability
	Population density	National statistical data	data.stats.gov.cn
	Highway kilometers	National statistical data	data.stats.gov.cn
	Passenger capacity	National statistical data	data.stats.gov.cn
	Internet penetration	National statistical data	data.stats.gov.cn
	Teledensity	National statistical data	data.stats.gov.cn
	Poultry production	National statistical data	data.stats.gov.cn
	Lack of coping capacity
	Health care institutions	National statistical data	data.stats.gov.cn
	Community health service center	National statistical data	data.stats.gov.cn

Note: A two-stage framework based on BRT and INFORM focuses on the risk of disease spread including index-case potential and epidemic potential.