Just build a decontamination chamber at your front door, and scrub down before you enter!
well i do come into the house and immediately go upstairs and shower and put on differenct clothes to come back downstairs thats about as close as i can get to a decontamination chamber,
Im only really half serious about the concern i dont need to add to the fear mongering around this place there are posters in other thread spreading fear enough for 100 forums.