What is a primary way dogs can contract lungworm?

Dogs can contract lungworm primarily by ingesting slugs and snails. The lungworm parasite, specifically Angiostrongylus vasorum, lives in the lungs and blood vessels of infected dogs. Slugs and snails are hosts for the larvae, and when a dog ingests these gastropods—either directly or by consuming contaminated food or water—it can become infected. This transmission route highlights the importance of keeping dogs away from areas where these animals thrive, particularly in regions where lungworm is known to be present.

While other methods of transmission, such as through infected feces from other dogs, can occur, the ingestion of slugs and snails remains the primary pathway. Vaccinations provide protection against specific diseases but do not prevent lungworm infection, and contaminated food does not play a significant role in the transmission of this particular parasite. Understanding these pathways helps dog owners take preventive measures against lungworm.