Priming but not boosting with plasmid DNA encoding mycolyl-transferase Ag85A from Mycobacterium tuberculosis increases the survival time of Mycobacterium bovis BCG vaccinated mice against low dose intravenous challenge with M. tuberculosis H37Rv., Romano, Marta, D'Souza Sushila, Adnet Pierre-Yves, Laali Rachid, Jurion Fabienne, Palfliet Kamiel, and Huygen Kris , Vaccine, 2006 Apr 12, Volume 24, Issue 16, p.3353-64, (2006)