An Overview of the Helminths of Moor Frog Rana arvalis Nilsson, 1842 (Amphibia: Anura) in the Volga Basin

This is the first review of the helminth fauna of the moor frog Rana arvalis Nilsson, 1842 from the Volga river basin (Russia). The article summarizes the authors’ and literature data on the helminthic fauna of this species. The method of complete helminthological dissection was used. Thirthy-eight helminth species were recorded from three classes: Cestoda (1), Trematoda (28), and Chromadorea (9). Nine helminth species are new to the moor frog in Russia: trematodes Gorgodera varsoviensis Sinitzin, 1905, Strigea falconis Szidat, 1928, larvae, Neodiplostomum spathoides Dubois, 1937, larvae, Tylodelphys excavata (Rudolphi, 1803), larvae, Pharyngostomum cordatum (Diesing, 1850), larvae, Astiotrema monticelli Stossich, 1904, larvae and Encyclometra colubrimurorum (Rudolphi, 1819), larvae, nematodes Strongyloides spiralis Grabda-Kazubska, 1978 and Icosiella neglecta (Diesing, 1851). The cestode Spirometra erinacei (Rudolphi, 1918), larvae were observed of this amphibian species in the Volga basin for the first time. The nematodes Rhabdias bufonis, Oswaldocruzia filiformis, Cosmocerca ornata and the trematode Haplometra cylindracea form the core of the helminth fauna of the moor frog. Information on species of helminths includes systematic position, localization, areas of detection, type and scheme of life cycle, geographical distribution, and degree of specificity to host amphibians.

Dynamics of parasitic infection in domestic cats in Perm city

A comparative analysis of the long-term dynamics of domestic cats’ infestation on the territory of Perm with intestinal helminths and protozoa, as well as establishing the relationship between the extent of prevalence of individual pathogens were performed. The prevalence of intestinal parasites is 17.97%. The significant dominant species are Toxocara cati Schrank, 1788 (7.42%), Hydatigera taeniaeformis Batsch, 1786 (1.38%), Isospora felis Last M.J., Powell E.C., 1978 (3.85%) и Isospora rivolta Grassi, 1879 (1.10%). Also potentially dangerous parasites for humans were find: Lamblia spp. (syn. Giar-dia) Künstler, 1882, Cryptosporidium spp. Tyzzer, 1907, Toxoplasma gondii Nicolle & Manceaux, 1908, Spirometra erinacei-eurоpaei Rudolphi, 1819, Dipylidium caninum Linnaeus, 1758; Railliet, 1892, Dibothriocephalus latus (syn. Diphyllobothrium latum) Linnaeus, 1758, Opisthorchis felineus (Rivolta, 1884) Blanchard, 1895. The year’s dynamics of dominant infections are not clearly expressed, however, the correlation between the most common helminths and protozoa is really positive (р < 0.05), that confirms a presence of natural sites of specified parasites and a primary role of rodents in domestic cats infestation.

THE ROLE OF PETS IN DISTRIBUTION OF ZOONOTIC CESTODA INFECTIONS IN THE PERM CITY

In this article the results of comparative statistical analysis of longtime (from 2005 to 2019) domestic dogs and cats intestinal cestodoses infestation dynamics are represented. The role of infections commons to human and animals to the distribution amount population is determinate. Fecal samples conserved in Turdyev solution were analyzed by combine and sedimentation methods. The prevalence in domestic dogs’ is 26,54% as a one in domestic cats is 18,56%. The level of infection with Cestoda is established in 1,18% of dogs and 1,90% of cats, including Dibothriocephalus sp. Linnaeus, 1758, Spirometra erinacei-eurоpaei Rudolphi, 1819, Taeniidae like eggs, Hydatigera taeniaeformis Batsch, 1786; Lamarck, 1816, Dipylidium caninum Linnaeus, 1758; Railliet, 1892, Mesocestoides lineatus Goeze, 1782; Railliet, 1893 and Hymenolepis nana Siebold,1852. In general, domestic carnivorous from owners, apparently, don’t play significant role in the wide spread of zoonotic Cestoda infections in the Perm population. However, a special attention of medical specialists should be paid to mesocestoidiasis, sparganosis and Hydatigera / strobilocercus infection in connection with their potential danger to human’s health.

Seven new species of helminths for reptiles from Armenia

Helminthic infections of reptiles habiting in the territory of Armenia are examined. Seven species of helminths new for reptiles from Armenia are registered: Parapharyngodon skrjabini, Oswaldocruzia goezei, Neoxysomatium sp., Telorchis assula, Nematotaenia tarentolae, Mesocestoides lineatus and Spirometra erinacei europea. Descriptions and pictures of them are given.