"The NIH study found that SARS-CoV-2 lasts for two to three days on steel and plastic. However, copper surfaces tended to kill the pathogen in about four hours.
Surprisingly the scientists discovered that the virus could survive up to a full day on cardboard, significantly longer than previously expected because porous surfaces are not typically hospitable to the microbes."
""A new, preliminary study has found that the novel coronavirus can survive for up to 24 hours on cardboard, but people probably don’t have to worry about receiving packages.""
Think I will be treating cardboard packaging as contaminated then. Wear gloves and dispose of immediately after opening outside. We are doing a bit of online shopping for garden supplies and the like and.......they all come in a cardboard box. May fire up the garden waste incinerator.
https://www.express.co.uk/news/uk/1258882/coronavirus-latest-news-uk-outbreak-london-lockdown-homes-transport-boris-johnson