At home with 2 kids, one with medical issues that mean he's got a slightly lowered/compromised immune system.
Where we live a couple of local schools have been closed for cases, and a few adults also have it . This is in Oz btw.
DH keeps squawking about what's happening everywhere, but does not seem to realise that he might get it. They have had to cancel all local events, fun run, concerts, all sorts, and teachers at sick child's school feel they'll be closing next week because someone will have the bug (demographic means tons of Pacific travelling parents etc.).
DH is going to a school reunion today of a few friends to meet up with someone whose just arrived today from overseas.
He feels sorry for him because pretty much everyone else has cancelled. He and one other friend are now the only ones going.
Overseas friend arrived today from Canada on the only flight still operating, and is meeting up with them after dropping off bags. They are a family of 5 who have been through 2 international airports, and in transit for 24 hours.
Our basic foods at the shops have been rationed, I've had to stock up on medicine for both kids, and I cannot get a handle on my asthma this week.
YABU - your DH is allowed to socialise, the chances are tiny.
YANBU - given your compromised child, your asthma, and friends journey, chances are higher, and you are within rights to make him sleep in his office for a week.