2 dark brahmas from ideal are sick

[Chicken Woman]

I have 2 dark Brahma's from ideal and they are gasping and week. IM surprised as the others are fine . They are about 10 days old.
Should I seperate them ? The other chicks don't seem to be bothering them.

 

[Featherland]

Personally I would separate them. If 2 are sick it might be contagious.