@j_g_allen Not when you need to hydrate, eat, or take medicine during a long journey.
Industry airflow study concluded that leaving empty middle seats would cut risk in half, so clearly near-field transmission from a seat mate is significant even ventilation occurs some minutes later.
@在长途旅行中需要补充水分、进食或吃药时，j_g_allen不会这样做。
工业气流研究的结论是，让中间的座位空着可以将风险降低一半，所以很明显，即使几分钟后发生通风，来自同座人的近场传播也很明显。