All one can do is be vigilant about hygiene. I always keep my gloves on when I go out, and never touch buttons, escalators, money etc, with my hands. Use my little handbag bottle of disinfectant, and thoroughly wash my hands frequently. I also generally use one hand to hold a tissue over my nose if I am on the bus or somewhere that is people infested. That's about all we can do really, and keep fingers crossed. Take care. Mrs Bouquet