This is the 12622nd most frequent Korean word.
대유행에
"대유행에" means "in a pandemic" or "during a great epidemic."
In this sentence, '대유행에' is used to indicate being involved with or the subject of the pandemic.
전 세계가 대유행에 맞서 싸우고 있습니다.
The whole world is fighting against the pandemic.
Here, '대유행에' shows causality, implying that the recession is due to the pandemic.
대유행에 따른 경제 불황이 심각해졌습니다.
The economic recession caused by the pandemic has worsened.
In this usage, '대유행에' signifies topic specificity, focusing on matters related to the pandemic.