The cluster is coming from inside the house.

[Hugin]

3. Correct, "Living Room Spread" is the most horrible part of a pandemic.

I guess what I posted earlier could be considered the macro spread of the virus.

One person in an enclave who does the two things in my previous post and carries the pathogen back into the enclave.

Then, within the enclave, there's the "Living Room Spread" or micro spread of the disease. Which would occur due to the members of the group spending time in a confined area sharing all of the physical surfaces and rebreathing the air. They are also in this shared area observing a minimum of the protocols. (Hand washing, distancing, masks, etc.) Duration of exposure is definitely important in the ultimate severity of the disease.

It's similar to a firecracker with a report at the end. The macro being the trajectory and the micro being the pop.