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Incidence of PPD Conversion Rate among Peace Corps Volunteers by Region4
| Region | Total PPD Conversion Rate Per 1000 Volunteer-Months |
|---|---|
| Africa | 1.464 |
| Europe and Central Asia | 1.442 |
| Southeast Asia | 1.364 |
| Central America | 1.272 |
| Caribbean | 0.994 |
| South America | 0.739 |
| Pacific Islands | 0.547 |
PPD, Purified protein derivative tuberculin skin test.
