How to prevent hantavirus pulmonary syndrome (hps )<br>Recognize signs of an infestation. Look for small pellets of rodent droppings about - " (0.5-1.0 cm) in size. You may also see signs of gnawing on your furniture or rodent tracks in dusty spaces.

Based on that paragraph can we conclude that this sentence is true?
HPS only occurs in Illinois.
It's impossible to say