... He stopped by the man in front of me, pressed the button on his belt that gave readings on his physicals. "Fall out!" "But, Sarge, it's just a cold. The Surgeon said -- " Jelly interrupted. " `But Sarge!' " he snapped. "The Surgeon ain't making no drop -- and neither are you, with a degree and a half of fever. (Starship Troopers, Chapter 1, p.2)
How does that square with the whole point - made right there, a couple of paragraphs down in Chapter 1 - of:
In any case, in the Mobile Infantry, everybody drops and everybody fights - chaplain and cook and the Old Man's writer. Once we went down the tube there wouldn't be a Roughneck left aboard -- except Jenkins, of course, and that not his fault.