One factor is the time or distance between potential hosts.

What exchange of money took place between host and guest?

It was the space between host and guest, always observed.

However, they cannot make more complex decisions based on what stage communications between hosts have reached.

This property would indicate a low barrier for transmission between hosts.

There does seem to be an increasingly adversarial relationship between diner and host.

Cadfael turned his attention once again to what was being discussed between host and guests.

Email and scheduling data was also transmitted between hosts across the network.

It is also possible for direct transmission between hosts.

A volunteer schedule will be determined through mutual agreement between host and supervisor.