Starfleet Academy (Voyager) novels 3

Cadet Kathryn Janeway, determined to live up to her father's name, struggles with a demanding commander and a pair of alien twin roommates, and the pressure gets to her in a holodeck test.

Janeway's last chance to prove herself is a field study on a wilderness planet with exotic animals and a team that can't stand each other, until they are stranded there.

On her first real mission, delivering medical supplies to a planet with a poisoned atmosphere, Cadet Janeway finds the air is fine, and soon she and her team are locked in with plague victims.