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Eric C. Strunz, Parminder S. Suchdev, David G. Addiss 

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1 Soil-Transmitted Helminthiasis and Vitamin A Deficiency: Two Problems, One Policy 
Eric C. Strunz, Parminder S. Suchdev, David G. Addiss  Trends in Parasitology  Volume 32, Issue 1, Pages (January 2016) DOI: /j.pt Copyright © 2015 Elsevier Ltd Terms and Conditions

2 Figure 1 Key Figure: Global Overlap of Vitamin A Deficiency and Soil-Transmitted Helminthiasis (STH) Shaded countries are those that require preventive chemotherapy for STH according to the WHO. Cross-hatched countries are those with moderate or severe vitamin A deficiency (VAD) according to the WHO (i.e., prevalence of VAD is 10% or higher). Trends in Parasitology  , 10-18DOI: ( /j.pt ) Copyright © 2015 Elsevier Ltd Terms and Conditions


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