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

Noun
Desu Copula

The polite, past negative form of 薬剤耐性菌

1. Was not drug-resistant bacteria.; Was not resistant to medication.

Past/Perfective
Negative
Polite
Formal Register