Germany almost tripled its new cases of coronavirus within 24 hours on Tuesday, around a week after Chancellor Angela Merkel further relaxed the country's strict lockdown.
The country's 'R' rate has also been above 1 for the last three days, according to the institute. An 'R' rate of 1 means that, on average, an infected person infects one other. Anything above 1 means that the outbreak is worsening.
Due to statistical uncertainties, the RKI said it is too early to know if cases are on the rise overall, according to CNN, but the figure is a worrying sign all the same.
Merkel has repeatedly warned that should the 'R' number go above 1, Germany's health system could be overwhelmed, according to Reuters.
On May 7, Merkel laid out criteria to apply an 'emergency brake' to tighten the lockdown. It can be applied in any region where new cases of the virus reach 50 per 100,000 people in 7 days.
Three districts — a relatively small part of Germany — have already used the brake, and more could follow. The specific modifications to the lockdown vary from place to place.
As of Tuesday, there have been a total of 170,508 cases and 7,533 deaths from the virus, according to the RKI. At the peak of the pandemic in Germany on March 27, the country reported 6,993 new cases in a single day, according to statistics website Worldometer.
NewsletterSIMPLY PUT - where we join the dots to inform and inspire you. Sign up for a weekly brief collating many news items into one untangled thought delivered straight to your mailbox.