Botrytis On Orchid

This looks like Botrytis, or gray mold; if not exactly that, it is a fungus of some type, likely caused by high humidity and little to no air circulation in the box – a perfect environment for fungal growth. The best thing you can do is let the fungus dry out as much as possible, provide good air circulation, make sure the orchid is potted in a very well drained media (bark is very good for this, and while you’re transplanting, you can remove infected tissues as much as possible), and provide appropriate light exposure for the plant. The fungal spores may re-generate if conditions are right for it, but if you care for the orchids properly it shouldn’t be an on-going problem. Here’s a link about the fungs:
http://www.ipm.ucdavis.edu/PMG/r280100511.html