Figure. A) Prevalence of Plasmodium vivax in Afghanistan, according to a 2005 survey (n = 269) and previous prevalence surveys conducted by HealthNet-TPO, 2000–2003 (n = 64). Lower-right inset shows ecologic zones in Afghanistan according to differences in elevation, temperature, and land cover. White, high altitude rangeland; light gray, desert; dark gray, grassland; black, irrigated/marshland. B) Predicted probability of P. vivax transmission (prevalence >0%) in Afghanistan, according to logistic regression model.
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