Wash them on a "dirty" cycle if your washer has that choice. Also add a little Borax. If your washer only has a regular cycle, wash them twice and they should be good to wear.
I have pants that have been hanging up in my Utility room for more then a year, anout 2 and I want to ear them, if I wash them could I wear them? would they still have germs on them because their alittle dusty? what should I do? some of them are brand new I just foregot I had them..