When several long-nosed dolphins passed in several provinces of the Philippines, employees of the Bureau of Fisheries and Water Resources (BFAR) examined carcasses of dead animals. It turned out that marine mammals were infected with a worm of the genus Contracaecum, which can parasitize the human body and land animals. When veterinarians performed an autopsy of dolphins, they found in the intestines of animals point-like hemorrhages and filamentous worms in the stomachs - it is these parasites that destroy the mammals. So, for example, in a dolphin found in Libon, a parasite infection caused enteritis - a polyethyological inflammatory disease of the small intestine. When the parasites finally weakened the dolphin's body, he died ... In this case, veterinarians stressed that worms of the genus Contracaecum, found in dolphin organisms, are zoonotic (parasitize in the body of other animals, often without causing disease). They are able to be transmitted among different species - which exactly, the Philippine veterinarians did not specify. Employees of BFAR suggested that parasites or their eggs could enter the sea through discharged into the water excrement. This was reported by the Philippine edition of Rappler. Blood samples and tissues from deceased animals were sent for further study to the Laboratory of Studies of Shore-Out Marine Mammals of the Philippine University Diliman (UP Diliman) for the LepTox project. The project studies the occurrence of leptospirosis and toxoplasmosis - parasitic diseases that affect humans and animals. Experts point out that there are no cases of human morbidity due to Contracaecum worms.