Ratia is currently working as a Postdoctoral Researcher. Her main interests lie in the early modern period and in the language of medicine. She is a long-time member of the Scientific Thought-styles project where she is also working with 18th century material. At the moment Ratia is studying representations of poverty in plague treatises of the Stuart period. She is also intrigued by genre and tries to examine how genre conventions are manifested in plague treatises. In her PhD (2011), Ratia analyzed argumentative strategies in the early modern medical controversy over tobacco.  She likes to teach and has taught many courses at the University of Helsinki and at the Open University.