DHs business partner has symptoms, do we all need to isolate until results?

[BigSandyBalls2015]

I’m confused and can’t see anything online. DH has been working quite closely with him.

Only the people who have been in direct contact with him, assuming that is just your DH. Technically your DH doesn't need to isolate until his partner gets a positive result but if they've been in close contact it would be sensible to.

Thank you, that makes sense