COVID-19 cases in Japan are continuing their recent rise and taking a toll on the elderly in particular, with experts predicting the trend will continue amid high heat, declining population-level immunity and the start of the holiday season.

Health ministry statistics released Friday showed Japan¡¯s ninth wave of coronavirus infections is continuing, with the average number of new cases reported by around 5,000 designated medical institutions in the week through July 9 standing at 9.14, up from 7.24 a week before.

Japan has seen a continuous, though gradual, increase in COVID-19 cases for eight straight weeks since May 8, when it downgraded the disease to a status on par with seasonal flu and scrapped a range of special COVID-19 measures, including the daily counting of cases.