As the coronavirus spreads in Tokyo to a degree unseen in nearly six months, neighboring prefectures are bracing for the fallout as foot traffic rebounds and the delta variant proliferates in the capital region.

Less than a week after a state of emergency was declared in Tokyo, the capital reported 1,271 new cases on Friday, a day after it saw 1,308, the highest daily count since Jan. 21.

Tokyo’s weekly rolling average of new cases could reach 2,400 within four weeks if infections continue to emerge at this pace, infectious disease experts advising the Tokyo Metropolitan Government said Thursday.