Tuberculin test using Indian indigenous purified-protein derivative (PPD) shows only moderate agreement with international standard PPD.
Christopher DJ, Priya N, Shankar D, Isaac B, DeLuca A, Sarkar S, Prakash Babu S, Samuel P, Cattamanchi A, Gupta A, Ellner J, Srinivasan S, Cox S, Thangakunam B.
Christopher DJ, et al. Among authors: shankar d.
J Clin Tuberc Other Mycobact Dis. 2023 Dec 1;34:100404. doi: 10.1016/j.jctube.2023.100404. eCollection 2024 Feb.
J Clin Tuberc Other Mycobact Dis. 2023.
PMID: 38174327
Free PMC article.