Mites on eggs

Hello, We’ve been trying to deal with these tiny mites all on our eggs and in nesting boxes.. It seems to be a very bad infestation in all 3 of my coops. My issue is, oneof out broody hens should be hatching babys within the next couple days, do these mites effect the babys? would they kill a baby chicken somehow?? And also best way to get rid of them? I read that DE is the best.