I have a slight fever which I think is one of the side effects from my third vaccination.
I feel a little feverish today after getting my booster shot. I think it could be one of the side effects.
ーI have a slight fever which I think is one of the side effects from my third vaccination.
「３回目のワクチンの副反応で微熱がある」
to have a slight fever で「微熱がある」
side effects で「副反応」
one's third vaccination で「３回目のワクチン」
ーI feel a little feverish today after getting my booster shot. I think it could be one of the side effects.
「３回目のワクチンの後、今日はちょっと熱っぽい。副反応かも」
to feel a little feverish で「ちょっと熱っぽい」
one's booster shot はコロナのワクチンに関しては「３回目のワクチン」と言えますが、booster shot は通常「追加接種」という意味です
ご参考まで！
カナダ 
