Lagenidiosis is a type of infectious disease.

The best known species of Lagenidium

Lagenidium

Lagenidium is a genus of Oomycota. It includes the biological control agent Lagenidium giganteum.Certain species can cause lagenidiosis....

is Lagenidium giganteum, a parasite of mosquito larvae used in biological control

Biological pest control

Biological control of pests in agriculture is a method of controlling pests that relies on predation, parasitism, herbivory, or other natural mechanisms...

 of mosquitoes. The disease lagenidiosis in dogs is caused by a new species of Lagenidium that has not yet been properly named. Lagenidiosis is found in the southeastern United States in lakes and ponds. It causes progressive skin and subcutaneous lesions in the legs, groin, trunk, and near the tail. The lesions are firm nodules or ulcerated regions with draining tracts. Regional lymph nodes are usually swollen. Spread of the disease to distant lymph nodes, large blood vessels, and the lungs may occur. An aneurysm

Aneurysm

An aneurysm or aneurism is a localized, blood-filled balloon-like bulge in the wall of a blood vessel. Aneurysms can commonly occur in arteries at the base of the brain and an aortic aneurysm occurs in the main artery carrying blood from the left ventricle of the heart...

 of a great vessel

Great vessels

Great vessels is a term used to refer collectively to the four large vessels that bring blood to and from the heart. These are:*Superior vena cava*Inferior vena cava*Pulmonary artery*AortaAll four pulmonary veins are considered apart of the great vessels...

can rupture and cause sudden death.