Washing machine drum smell

Seems a bit of a far fetched theory that durhamjen - i suppose there is a possibility that if someone did a lot of business travel and slept in a lot of different beds and the bedding had been washed at low temperature and previous users of bedding had colds... they just might pick up a virus.
I think the only time hygiene raises its head is if people have had norovirus and then it would be wise to wash all sheets and towels on a hot wash to avoid passing them round the family.
But hands are a much more common way of passing bugs around, along with sneezing and food hygiene.