Variance | BCG | MWV | PPD |
Type of bacteria | Live attenuated mycobacteriumbovis | Heat killed bacilli in a buffer solution | Purified protein derivative of Mycobacterium antigen |
Uses | Routine vaccination against TB and leprosy (by WHO) in addition to researches | Immunotherapeutic adjunct to multidrug therapy of multibacillary leprosy in India. | Use to determine if someone has developed immune response to mycobacterium TB |
Formula | 0.05mL for infants, 0.1 mL for Children & adults | Multi-dose vial of 0.5 ml containing 500 million heat-killed bacilli in a buffer solution | 5 TU/0.1 ml solution |
Tuberculin test | Mandatory before injection | Not necessary | Not necessary |
Route of administration | Intradermal, percutaneous by multipuncture | Intralesional | Intradermal route in the volar aspect of the forearm |
Safety in pregnancy | Category B | Category B | Category C |