How to prevent hantavirus pulmonary syndrome (hps )<br>Recognize signs of an infestation. Look for small pellets of rodent droppings about ¼-½ " (0.5-1.0 cm) in size. You may also see signs of gnawing on your furniture or rodent tracks in dusty spaces.
Rodent droppings aren't left behind.
( z1 leave-behind :polarity - :ARG1 ( z2 thing :ARG1-of ( z3 collect :ARG0 ( z4 rodent ) ) ) )