are transmitted by slugs and snails and are also contained in their slime trails. So, lungworm larvae may be found on any object recently soiled with slime: outdoor water bowls, puddles, chewing bones and toys. Lungworm infection can be fatal.
can transmit infectious diseases, some of which can be fatal for dogs, e.g. babesiosis. Ticks are found on vegetation. They are abundant in spring and autumn but are active all year round.
are transmitted by mosquitoes. Heartworms can be fatal to dogs but fortunately they are not generally found in the UK or Ireland. However, they may be a risk for any dog that travels abroad.