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. 2008 Nov;138(11):2123–2128. doi: 10.3945/jn.108.093740

TABLE 5.

PPD-induced skin test responses in BCG-vaccinated, uninfected guinea pigs and in unvaccinated, M. tuberculosis-infected guinea pigs at 3 and 6 wk postinfection1

(n-3) PUFA (n-6) PUFA
Induration diameter, mm
Preinfection 3.2 ± 1.7* 11.4 ± 3.2
3 Wk postinfection 0.87 ± 0.87** 11.4 ± 2.8
6 Wk postinfection 15.4 ± 4.1*** 34.5 ± 1.7
1

Values are means ± SEM, n = 5–10. Asterisks indicate different from (n-3) PUFA: *P = 0.03,**P = 0.003, ***P = 0.0008. Results shown were obtained 24 h following PPD injection.