The number of weekly COVID-19 cases in Japan increased for the first time in about two months, health ministry data showed Thursday, as some health experts warned that the country has already entered a new wave of infections.All 47 prefectures except Okinawa reported a rise in the number of new cases over the week through Wednesday, at a time concerns are growing about an eighth wave of infections with the country opening its doors to overseas visitors, the vaccination rate plateauing and the movement of people continuing to increase.New infections across the country during the period rose …READ FULL ARTICLE