請教一個對話的句子 - 英檢

本來不想打擾托福版的鄉民們

不過我在language版po了沒人理不得已只好來打擾一下了 >"<


A: Now, they think you're sick today?

B: Yeah.

A: And they bought that?

B: There's a bug going around.

請教一下B的第二句話There's a bug going around.是什麼意思呀?

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