Objective To preliminarily evaluate the safety of tuberculosis fusion protein based subunit vaccine ESAT6-Ag85B-MPT64(190-198)-Mtb8. 4-Rv2626c(LT70)with the complex adjuvant DPC consisting of cationic liposomes dimothylidioctyl ammonium bromide(DDA)and poly I ∶ C and cholesterol. Methods Acute toxicity test was carried out as follows: mice were immunized with LT70-DPC tuberculosis subunit vaccine at low and high dosages(equivalent to 10 000 and 40 000 times of dosage for humans respectively) by subcutaneous...