Ron hastily turned his laugh into a hacking cough.

罗恩忍不住要笑，但赶紧把笑声变成了阵干咳。

But just as it was winding down, a little-known virus that causes many of the same symptoms – a lower lung infection, hacking cough, runny nose, sore throat and fever – was just picking up steam.

但就在疫情逐渐平息的时候，一种鲜为人知的病毒又开始肆虐起来，这种病毒会导致许多相同的症状——肺部感染、干咳、流鼻涕、喉咙痛和发烧。