Table 3.

Countries reporting outbreaks, 2015–2017, by World Bank income group (World Bank 2017)

High income (n = 26)	Upper middle income (n = 9)
Australia (n = 2)	Argentina (n = 1)
Belgium (n = 2)	China (n = 4)
Canada (n = 1)	Ecuador (n = 1)
Czech Republic (n = 1)	South Africa (n = 1)
England (n = 1)	Turkey (n = 1)
France (n = 1)	Venezuela (n = 1)
Germany (n = 5)
Greece (n = 1)	Lower middle income (n = 4)
Ireland (n = 2)	India (n = 4)
Israel (n = 1)
Italy (n = 1)	Low income
Japan (n = 2)	None
Kuwait (n = 1)
Norway (n = 1)
Spain (n = 2)
United States (n = 2)

High-income enconomy = GNI per capita $12,476 or more; upper middle income between $4,036 and $12,475; lower middle income between $1,026 and $4,035; low income less than $1,025.