I just saw a lady in the park who I have not seen for a while and very sadly she had lost her cocker spaniel bitch (who had pups of 4 weeks old) to lungworm. The pups are fine and she kept both of them but the loss of her bitch was understanderbly devestating.
It prompted me to post about the dangers of dogs eating snails as this seems to be the main cause of the disease.