Myself, I don't know if there is any cause for concern .. however, better safe than sorry .. China is not known to be the most honest country on the Planet, the outbreak could very well be much worse than reported ..
Due to the absolute huge amount of various goods that we import from China, if there is a possibility at all of the virus coming in via shipping or shipping company employees, I suppose a crackdown could be in order ..
I would not discount the seriousness of this outbreak .. it shows, once again, just how fragile things are ..
Perhaps someone within Walmart or other major importers could consider the following until or at least, more concrete information is available ..
Ultraviolet germicidal irradiation - Wikipedia
In addition, we also import a massive amount of food from China .. I would tend to speculate that the chance of the virus being live still on food would be greater than regular Consumer hardgoods .. but, I'm no Scientist, so all I know is to err on the side of caution ..