免疫 めんえき物質 ぶっしつではありませんでした
men'ekibusshitsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 免疫物質

1. Was not an immune substance.; Was not a substance of immunity.

Past/Perfective
Negative
Polite
Formal Register
Medicine