薬剤 やくざい耐性 たいせいではありませんでした
yakuza itai seidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 薬剤耐性

1. Was not drug-resistant.; Did not have drug resistance.

Past/Perfective
Negative
Polite
Formal Register
Medicine