Sunday’s Yomiuri reported that while about 87% of people aged 65 or older in Japan had received their second doses of COVID-19 vaccine as of Aug. 27, the virus is spreading among the elderly again due probably to the highly contagious Delta variant. The paper stressed the need for caution as cluster infections are occurring at facilities for elderly people who have already been fully vaccinated, with 34 cases at such facilities confirmed from Aug. 16 to 23. According to the daily, although people aged 65 or older accounted for 2.7% of cases between Jul. 27 to Aug. 2 in Tokyo, the percentage rose to 4.3% in August. The paper wrote that “breakthrough infections” have also been reported across Japan, adding that among the 85,325 new cases reported between March and August, 317 involved cases confirmed at least two weeks after people had received their second dose of vaccine. According to the daily, people aged 60 or older accounted for half of the 317 cases, but none of them died or became seriously ill.