With concern growing in Germany over an expected wave of coronavirus infections after the summer, official figures on Saturday indicated that the infection rate was already rising. The Robert Koch Institute (RKI) disease control body reported that the nationwide seven-day incidence rate of infection was 696.5, a slight increase on the day before (682.7) and substantially higher than last week (632.9). Although the official infection rate is no longer seen as a very reliable indicator of infection numbers – mainly because many people with Covid-19 no longer take official PCR tests – some are as…