DH is currently on a fellowship where he spends three weeks a month at a US university and one week a month here. He has complete control over when and where he goes (he has an office there but doesn't have to put in hours, if that makes sense).
The university is in a town where there's a rapidly rising number of coronavirus cases. The university itself has cancelled all uni-funded travel and classes and is asking people to work from home.
He's currently here in the UK, with us, and is supposed to fly back in a couple days. I want him to stay until we're all due to fly over there in early April. I'm concerned about the possibility of our family being separated if his area goes into lockdown, or if flights are cancelled, or if one of us gets sick and has to recover alone. I'm hoping none of these things will come to pass, but I'd rather be wrong and look a little foolish, than be wrong and have the family separated in a time of crisis.
Is this reasonable or a massive overreaction? It would disrupt his plans (although most of his commitments have already been cancelled over the virus, and likely the rest will be too).