Heartworm, fleas, ticks (including Lyme), and intestinal parasites remain major threats year-round. Climate shifts are expanding their ranges, so seasonal prevention is no longer enough. Consistent monthly or veterinarian-recommended prevention is far safer and cheaper than treating advanced disease.
Why Year-Round Matters More Than Ever
Milder winters and warmer temperatures allow parasites to survive
longer and spread into new areas. Heartworm is transmitted by mosquitoes
that are active longer each year. Ticks that carry Lyme and other
diseases are appearing in regions that once had low risk.
What Proper Prevention Covers
– Heartworm (monthly oral or topical, or longer-acting injectable
options)
– Fleas and ticks (topicals, orals, or collars depending on
lifestyle)
– Intestinal parasites (many monthly products include this
coverage)
Common Owner Mistakes
Skipping doses in winter, using over-the-counter products that lack
proven efficacy, or stopping prevention once a dog is indoors most of
the time. Indoor dogs still get exposed through open doors, windows, and
human clothing.
Action step: Check your dog’s current prevention
status this week. Confirm with your veterinarian that the product and
schedule match your local risk level and your dog’s lifestyle.
Consistency is the single most important factor.
—