As I've said on another thread according to his wife's Spectator article, he rushed home from work to look after her (Cummings seen running out of No. 10 on the 27th), collapsed (on the 28th?) and was bedridden for 10 straight days. Yet it seems that they travelled to Durham on the 30th. They were both then showing symptoms with one of them having been in close and prolonged contact with at least one confirmed Covid-19 patient. That two day gap will take some explaining away particularly, regardless of any commonsense get out clauses they might try to exploit.