Taxonomic and ecological aspects of the helminths found in assemblage sigmodontine rodents (Cricetidae-Muroidea) Atlantic Forest Argentina are studied this paper. The following species Akodon montensis, Brucepattersonius sp. Thaptomys nigrita (Tribe Akodontini), as well as, Euryoryzomys russatus, Nectomys squamipes, Oligoryzomys nigripes, Sooretamys angouya Oryzomyini) analyzed. A complete taxonomic list with a total 25 helminths, including Digenea (Dicrocoeliidae), Cestoda (Hymenolepididae)...

In this survey, 19 species of helminths including Cestoda (Davaineidae, Hymenolepididae, and Taeniidae), Acanthocephala (Oligacanthorhynchidae), Nematoda (Trichuridae, Ornithostrongylidae, Heligmonellidae, Oxyuridae, Gongylonematidae) from Rattus rattus, Mus musculus, Sigmodon toltecus, Heteromys gaumeri, Peromyscus yucatanicus in two Mayan villages Yucatán, México, were recorded. Ten collected both localities. The highest richness was recorded R. rattus Xkalakdzonot (6 taxa). Twelve are new...

Although surveys on bat parasites in the Americas have been conducted, information helminths remains limited. In Mexican states such as Nayarit and Veracruz only 1 8 helminth species reported bats, respectively. this study, we provide new helminthological records for bats using morphological techniques. Also, 28S rRNA gene of specimens from several taxa was successfully amplified sequenced. To confirm identification at generic level, some cases specific genealogical relationships parasites,...

Populations of Trichuris spp. isolated from six species sigmodontine rodents Argentina were analyzed based on morphological characteristics and ITS2 (rDNA) region sequences. Molecular data provided an opportunity to discuss the phylogenetic relationships among Noth South America (mainly Argentina). specimens identified morphologically as pardinasi, T. navonae, sp. new species, described in this paper. Sequences by Maximum Parsimony, Likelihood Bayesian inference methods showed four main...

Sarcocystis is a genus of intracellular parasitic protozoa that infects various species mammals, birds, and reptiles worldwide. At least 46 naturally infect rodents as intermediate hosts producing tissue cysts. This study aimed to provide the first report molecular characterisation spp. in muscles from plains viscacha (Lagostomus maximus) Argentina. Muscle samples 53 viscachas three provinces Argentina were processed by homogenisation optical microscopy detect Positive analysed...

Species of Trichuris (Nematoda:Trichuridae) parasitize a broad range mammalian hosts. To date, 21 species infecting nine families rodents have been found in North and South America. navonae n. sp. is described on the basis specimens recovered from forest-dwelling mice, Akodon montensis (Cricetidae: Sigmodontinae), localities Misiones Province, Argentina. A comparison with all American given. The separation new based morphologic morphometrica features, such as absence spicular tube, presence...

Angiostrongyliasis is an infection caused by nematode worms of the genus Angiostrongylus. The adult inhabit pulmonary arteries, heart, bronchioles lung, or mesenteric arteries caecum definitive host. Of a total 23 species Angiostrongylus cited worldwide, only nine were registered in American Continent. Two species, A. cantonensis and costaricensis, are considered zoonoses when larvae accidentally parasitise man.In present study, geographical chronological distribution hosts Americas analysed...

Abstract In order to analyse the effect of hosts’ relationships and helminthic load on switching parasites between native introduced hosts, we sampled rodents belonging two suborders from Central Chile. We compared number species shared murids (introduced) cricetid (native, same suborder) those hystricomorphs different suborder), assessed association parasitic presence, abundance geographical dispersion in source hosts presence recipient hosts. Introduced rodent more helminth with than...

Toxoplasma gondii and Neospora caninum are closely related coccidian parasites (phylum Apicomplexa). This is the first study from urban synanthropic rodent species that involved serological molecular diagnosis of T. N. infection, genotyping in Argentina. A total 127 samples were trap captured: Mus musculus (n = 78), Rattus norvegicus 26) rattus 23). Antibodies against detected by IFAT 32.8% (40/122) 0.8% (1/122) samples, respectively, demonstrating contact with these protozoans....

To date, 21 species of the genus Angiostrongylus (Nematoda: Angiostrongylidae) have been reported around world, 15 which are parasites rodents. In this study, new host, geographic records, and histopathologic studies spp in sigmodontine rodents from Argentina, with an updated summary records rodent hosts host specificity assessment, provided. Records costaricensis Akodon montensis morerai six geographical localities Argentina reported. The gross changes lungs due to angiostrongylosis...

Trichuris spp. have a cosmopolitan distribution; the species are typically identified by features related to reproductive system. laevitestis was described on basis of specimens collected from rodents captured in Punta Lara, Buenos Aires Province, Argentina. Here, T. is redescribed considering new and relevant morphological diagnostic importance such as arrangement spines spicular sheath, spicule length, length shape proximal cloacal tube, paracloacal papillae, vulva, ratios between...

Angiostrongylus morerai n. sp. (Nematoda: Angiostrongylidae) is described from the pulmonary arteries of Azara's grass mouse Akodon azarae (Rodentia: Cricetidae) in Argentina. It distinguished its congeners principally by morphology dorsal ray, which as long, or longer, than externodorsals and has 2 long branches; spicule lengths are also greater (400–465 μm). This first record a metastrongyloid sigmodontine rodents

The house mouse, Mus musculus, has been present in Chile since approximately 1600 AD and it is the most tipically synanthropic rodent Chile.In order to know its parasites a survey was conducted three different localities Santiago.The helminthes community poor species only nematodes were found: Syphacia obvelata, Aspiculuris tetraptera Physaloptera calnuensi.All these constitutes first record Chile.This also of P. calnuensis this host.Syphacia obvelata abundant prevalent.

Abstract This paper describes the helminth community of Pampean grassland mouse ( Akodon azarae ) inhabiting poultry farms in central Argentina. Winter diversity (season high rodent abundance) has been compared to spring low abundance). Species richness was seven both seasons: five nematodes Syphacia carlitosi , Stilestrongylus spp., Trichuris laevitestis Pterygodermatites (Paucipectines) azarai and Protospirura numidica criceticola two cestodes (adults Cyclophyllidea Taenia taeniaeformis...

Lagostomus maximus is a native rodent of South America that presents economic and biological importance. However, few studies on parasites this are available throughout its geographic distribution. The aim study was to explore, describe compare the structure helminth communities from 2 populations L. in semi-captive (SCHP) wild (WHP) conditions Buenos Aires Province, Argentina. studied considering ecological data at different levels. Seven taxa were collected. Graphidioides spp. Lagostonema...

The wild rodent, Abrothrix olivaceus, is a widespread species in Chile using different habitats troughout the territory.Its helminthfauna has been partially studied enviroments Chile.In this work five nematodes and one of cestode were found.Three them are first record host: Syphacia obvelata, Physaloptera calnuensis Heterakis spumosa, last one, Chile.It suggested that structuring factor locality: three localities had more mean abundance prevalence two parasites as component community.It also...

Heterakis spumosa and Syphacia muris are among the most common species parasitizing mammals. Although these nematodes have been reported from many hosts on several continents, in South America, they only recovered cecum of Rattus norvegicus Brazil Peru. This study provides morphological details H. S. muris. Moreover, this is first record Argentina. were collected specimens R. Partido de Exaltación la Cruz, Buenos Aires Province, note presents relevant features observed with scanning electron...