구단에 따르면 나가이시는 22일 친구 3명과 식사를 했고, 28일부터 발열 증세를 보이며 체온이 37.9도까지 올라갔다.
According to the club, Nagaishi had a meal with three friends on the 22nd and showed signs of fever from the 28th and his body temperature rose to 37.9 degrees.