Am 02.06.2020 um 21:58 schrieb Anna Noyd-Dryver:

How might the relaxation of the lockdown affect K?
Lockdown reduces the chances of a single infectious person spreading the
disease to others. “Obviously if you start to allow larger gatherings, have
larger workplaces, if you have other types of interaction starting, then
that does increase the chance that one infection could spread to more
people than it would have been able to a couple of weeks ago,” said
Kucharski. “It could decrease the K, but it could also increase the R.”

Examples in Germany since lockdown was relaxed:

Church Service (Russian/German Church) Frankfurt: 140+ infected
Root cause: no masks and singing (legal in Hessen)
Church Service (Russian/German Church) Bremerhaven: 100+ infected
Supposedly masks were worn and no singing
Private family event in Restaurant Leer: 40+ infected
Sweet Festival several large families Göttingen: 100+ infected
Root cause: private use of Shisha bar with shared mouthpiece (several
distancing laws broken, people refused to appear for ordered testing)

All of these events did *not* lead to a increased follow-up infections
because as soon as one person goes to hospital, several hundred contacts
are tested and caught.

The extremely low K value in COVID-19 gives us hope that there is little
undetected spreading.

Rolf