在日本东京都，过去7天平均单日新增病例比前一周增长60%以上，且连续三天创下新冠疫情暴发以来单日新增病例纪录——
据日本广播协会（NHK）报道，日本30日单日新增新冠肺炎确诊病例数已达10743例。
Tokyo recorded 3,865 new COVID-19 cases on Thursday, authorities announced, hitting another daily record high as the city has become Japan's biggest COVID-19 hot spot.It is the third straight day the Olympic host city has logged a record figure after reporting 3,177 COVID-19 cases the previous day, casting a pall over the Olympics.Newly reported daily COVID-19 cases in Japan reach a record-high 10,743 on Friday, public broadcaster NHK said on Friday.此外，同属首都圈的神奈川县等地单日新增确诊病例也连创新高，首都圈疫情形势趋于恶化。东京都29日召开的一次防疫会议预测，到8月11日，当地日均新增病例可能超过4500例。国立国际医疗中心主任大曲贵夫表示，东京都将要面临“从来没有经历过的新冠疫情暴发”情况。
据NHK报道，当地时间7月30日，日本政府正式决定，将紧急事态宣言的覆盖地区扩大至埼玉县、千叶县、神奈川县和大阪府4个府县。此外，政府还决定对北海道、石川县、兵库县、京都府、福冈县5个道府县实施防止疫情蔓延等重点措施。
上述措施的实施时间均为8月2日至31日。目前已经对东京都和冲绳县发布的紧急事态宣言也将延长至8月31日。
The Japanese government on Friday declared a state of emergency against COVID-19 for three prefectures neighboring Tokyo - Saitama, Chiba and Kanagawa, and Osaka Prefecture, running from August 2 till 31.Tokyo and Okinawa, which are already under the virus emergency, will see their deadline of August 22 extended to the end of the month.
由于传染性较强的变异新冠病毒德尔塔毒株正在迅速传播，日本政府不得不在东京奥运会举办过程中扩大紧急事态宣言和重点措施的实施对象。30日，东京奥组委发布消息称，新增27名奥运相关人员新冠病毒检测呈阳性。该数字超过29日通报的24例，连续两日刷新单日新增最高纪录。自7月1日以来，东京奥运会相关人员累计已有220人新冠病毒检测呈阳性。The National Institute of Infectious Diseases has estimated that the highly contagious Delta variant is now responsible for about 70 percent of the infections in the metropolitan areas.As of Friday, another 27 Olympic Games-related cases were reported according to the Games' organizing committee. The total number stands at 220 since July 1, including athletes, media personnel, Olympic employees and contractors.
29日，日本政府新冠疫情专家小组组长尾身茂在国会参议院会议上表示，民众对疫情已经习以为常、高传染性变异病毒“德尔塔”毒株蔓延、东京奥运会以及暑期人员流动增加，是导致此次疫情扩大的主要原因。
他警告，日本正面临疫情暴发以来“最严峻形势”，敦促政府就不断增长的风险发出“更明确、更有力的信号”，而民众对疫情“缺乏危机感”是日本社会当前的最大危机。Shigeru Omi, the Japanese government's top medical adviser, warned on Thursday that the country faces its most serious situation ever since the beginning of the pandemic, urging the government to send out a clearer and stronger message about its increasing risk to the medical system.