Pomfrey's instincts said this was the same mysterious illness, but she went about checking his vitals with her wand before jumping to any rash conclusions.  She'd bustled Prim over to a chair on the opposite side of the infirmary, then sent her to her room with a bottle of immune boosting potion and strict instructions to stay in her room the next 24 hours, returning if she began feeling poorly.

 "39.2" She tutted, and "climbing likely as not.  Not to worry Mister Warwick, we'll have you put to rights soon enough.  Try to stay awake for me dear.  Pain when you breathe?"

She rubbed a bit of slave on his arm and pulled out the a second dragon bone needle.  "Little pinch....see, already done."  Blood to the office.  She'd need to make a poultice.  She used an extra scourgify charm on her hands and hurried over to Miss Watkins who seemed to still be sleeping for the time being.  Once she finished taking care of her patients she'd put a charm on the door where everyone had to knock.  And she'd talk to Flitwick and Severus Snape about doling out potions and charms for less severe issues.