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Low- and middle-income countries.
| Low-Income Countries | Middle-Income Countries |
|---|---|
| Afghanistan | Brazil |
| Niger | Argentina |
| Syria | Malaysia |
| Ugenda | Azerbaijan |
| Bangladesh | Algeria |
| South Africa | Ethiopia |
| Ghana | Tanzania |
| Iran | Malawi |
| Burundi | Pakistan |
| Madagascar | Nepal |
| Sudan | Indonesia |
| Central African Republic | India |
| Liberia | Iran |
| Somalia | Cambodia |
| Niger | Bulgaria |
| Uganda | Cape Verde |
| Zambia | Egypt |
| Tajikistan | Sri Lanka |
