I would assume that, if the detergent didn't kill germs then they would multiply from the moisture and heat if you used a radiator/dryer to dry? If this is the case then I need to find a washing detergent that specifically states that it kills germs.
The reason I ask is because I'm trying to reduce my facial spots, and if my washing detergent won't kill the germs then washing my pillow case, ect, is in vain.