Skip to main content
. 2010 Aug 4;17(10):1500–1506. doi: 10.1128/CVI.00190-10

FIG. 1.

FIG. 1.

Experimental design. Guinea pigs in the old group were vaccinated with BCG at the age of 6 weeks and were then maintained for 60 months before revaccination with BCG 6 weeks before M. tuberculosis infection (group 1). Guinea pigs in the middle-aged groups either were vaccinated with BCG at the age of 6 weeks and were then maintained for 18 months before infection (group 2) or were not vaccinated with BCG until 6 weeks before infection (group 3). Guinea pigs in the young groups either were vaccinated 6 weeks before infection (group 4) or were not vaccinated (group 5).