Hi - I saw it published that the virus can stay on cardboard and paper for 24 hours or so. So I have been quarantining Mum's daily newspapers and mail for 2 days and then giving them to her as I cannot take the chance of having virus delivered through the letterbox. The letterbox is taped over and there is a lidded bucket with instructions for the paper boy and postie which they are following. It does then mean I need to go each day to quarantine the new paper and release an older one. Is anyone else worried about the threat through the letterbox? Mum is lost when she doesn't have a paper to read.