BCG vaccine

noun

Immunology.

1. a vaccine made from weakened strains of tubercle bacilli, used to produce immunity against tuberculosis.

BCG vaccine

1. A preparation used to immunize individuals against tuberculosis, consisting of attenuated live human tubercle bacilli (Mycobacterium tuberculosis), the bacteria that cause tuberculosis.

Word History and Origins

Origin of BCG vaccine¹

1925–30; B(acillus) C(almette-)G(uérin)