Dogs
Dirofilariasis is a highly dangerous disease caused by roundworms from the nematode group, called dirofilaria. Adults are long (up to 40 cm), thin worms about 1.5 mm in diameter, and come in two varieties: immitis and repens. The former are more dangerous, as they infect the right ventricle of the heart and the pulmonary arteries, while the latter parasitize under the skin and inside the mucous membrane of the eye. Dirofilariasis affects not only dogs but also cats and humans. Mosquitoes (of the genus Aedes) are considered carriers of the disease, and the disease itself is often fatal.
A howling dog is unpleasant for its owner and everyone around it. It's natural to want to train your pet to stop this behavior. But before attempting any training, it's important to figure out why the dog is howling. Simple prohibitions and harsh punishments are unlikely to work. Only by eliminating the underlying cause can you break your dog of this negative habit.