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. 2023 Aug 31;9:e46383. doi: 10.2196/46383

Table 4.

WHOa Member States reporting human infection with avian influenza virus by region and income classification (period: January 2013-June 2022).

Region and income classification All WHO Member Statesb (n=194) Proportion of all WHO Member States reporting infectionsc (n=17) Distribution of reporting Member Statesd (n=17) Reported infections (n=2000)
Hemisphere, n (%)

Northern 163 (84.0) 17 (10.4) 17 (100) 17 (100)

Southern 31 (16.0) 0 (0) 0 (0) 0 (0)
World Bank region, n (%)

East Asia and Pacific 32 (16.5) 6 (18.8) 6 (35.3) 1786 (89.3)

Europe and Central Asia 50 (25.8) 1 (2.0) 1 (5.9) 1 (0.1)

Latin America and the Caribbean 33 (17.0) 0 (0) 0 (0) 0 (0)

Middle East and North Africa 20 (10.3) 2 (10.5) 2 (11.8) 195 (9.8)

North America 2 (1.0) 2 (100.0) 2 (11.8) 6 (0.3)

South Asia 9 (4.6) 4 (50.0) 4 (23.5) 8 (0.4)

Sub-Saharan Africa 48 (24.7) 2 (4.2) 2 (11.8) 4 (0.2)
World Bank income classification, n (%)

High income 61 (31.4) 4 (6.6) 4 (23.5) 9 (0.5)

Upper middle 29 (14.9) 3 (10.3) 3 (17.6) 1743 (87.2)

Lower middle 50 (25.8) 10 (20.4) 10 (58.8) 248 (12.4)

Low income 55 (28.4) 0 (0) 0 (0) 0 (0)
Poultry productione, % 96.9 67.8 N/Af N/A
Populationg, n 7,853,022,689 4,469,153,194 N/A N/A

aWHO: World Health Organization.

bDenominator is all WHO Member States.

cDenominator is all WHO Member States in that hemisphere/region/income classification.

dDenominator is all WHO Member States that reported an infection.

eBased on most recently reported data from 2020.

fN/A: not applicable.

gBased on most recently reported data from 2021, Republic of Niue and Cook Islands are excluded from human population totals as data were not available.