"For heartworm preventatives to work, you must give them on time, every time...|
"Millions of dogs in the United States get no heartworm preventative or get it inconsistently, according to the American Heartworm Society.
"Heartworm disease is.. transmitted by infected mosquitos.. causing significant damage to the heart, lungs, and other vital organs..
"If you have your dog tested annually and you consistently give him a preventative, you have no worries... Don't skip this test. Some preventatives can cause potentially fatal reactions in already infected dogs...
"Left untreated, heartworm will kill your dog...
"..take steps to limit [mosquitos in the yard]:
(Kirkwood, Kyra. "To Love and Protect." Dog Fancy, Mar. 2004: 20-23).
Colby Glass, MLIS