| Prevalence | Total | Country | % Correct |
|---|---|---|---|
| 0.60% | 920,000 | Brazil | 96%
|
| 1.90% | 160,000 | Haiti | 91%
|
| 1.20% | 1,000,000 | Russia | 91%
|
| 1.40% | 30,000 | Jamaica | 87%
|
| 0.60% | 120,000 | Venezuela | 87%
|
| 0.50% | 61,000 | Chile | 83%
|
| 1.00% | 67,000 | Dominican Republic | 83%
|
| 0.80% | 21,000 | Panama | 83%
|
| 1.20% | 11,000 | Trinidad and Tobago | 83%
|
| 0.90% | 240,000 | Ukraine | 83%
|
| 0.60% | 24,000 | El Salvador | 78%
|
| 0.50% | 46,000 | Guatemala | 78%
|
| 0.60% | 71,000 | Cambodia | 74%
|
| 1.10% | 450,000 | Thailand | 74%
|
| 0.90% | 46,000 | Papua New Guinea | 70%
|
| 0.80% | 230,000 | Myanmar | 61%
|
| 0.60% | 12,000 | Uruguay | 61%
|
| 0.50% | 12,000 | Georgia | 57%
|
| 0.70% | 6,600 | Latvia | 57%
|
| 0.60% | 15,000 | Moldova | 57%
|