I'm sure you let rats/mice run around your yard? I work as an operator in a grain elevator and there are about 10 poison stations per floor, 40 floors. Do the math. (Ya, we are trying to wipe them out)
Personally,If I were a groud hog/rat/vermin,etc I'd rather be shot(exploded)by a high power rifle than poison/eaten alive by snakes/birds/cats,etc. Thats just me.
” mice and rats...”
Hantavirus pulmonary syndrome (HPS) is a deadly disease from rodents. Humans can contract the disease when they come into contact with infected rodents or their urine and droppings.
HPS was first recognized in 1993 and has since been identified throughout the United States. Although rare, HPS is potentially deadly.
Rodent control in and around the home remains the primary strategy for preventing hantavirus infection.
Centers for Disease Control and Prevention
U.S. Department of Health and Human Services
http://www.cdc.gov/ncidod/diseases/hanta/hps/