slight fever
子供は微熱で学校を休んだ。
The child stayed home from school due to a slight fever.
診察で微熱が続いていると伝えた。
During the examination, I mentioned that my slight fever was persisting.
微熱を押して仕事に行き、後で後悔した。
I pushed through my slight fever and went to work, regretting it later.