Emerging Infectious Disease ISSN: 1080-6059

Zinc Cream and Reliability of Tuberculosis Skin Testing

V. Bhargavi Rao*†, Tom F. Pelly*‡, Robert H. Gilman‡§¶, Lilia Cabrera‡, Jose Delgado‡, Giselle Soto‡, Jon S. Friedland*, A. Roderick Escombe*‡, Robert E. Black¶, and Carlton A. Evans*†‡§¶

Author affiliations: *Imperial College London, London, UK; †London School of Hygiene and Tropical Medicine, London, UK; ‡Asociación Benéfica Prisma, Lima, Peru; §Universidad Peruana Cayetano Heredia, Lima, Peru; ¶Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA;

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Figure 2

Association between plasma zinc concentration and response to topical zinc. The association is shown between plasma zinc concentration and the magnitude of augmentation of the purified protein derivative skin test with topical zinc. The normal range of plasma zinc (>0.6 mg/L) is also indicated.

Figure 2. Association between plasma zinc concentration and response to topical zinc. The association is shown between plasma zinc concentration and the magnitude of augmentation of the purified protein derivative skin test with topical zinc. The normal range of plasma zinc (>0.6 mg/L) is also indicated.

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