New cryptosporidium genotypes in HIV-infected persons.

Using DNA sequencing and phylogenetic analysis, we identified four distinct Cryptosporidium genotypes in HIV-infected patients: genotype 1 (human), genotype 2 (bovine) Cryptosporidium parvum, a genotype identical to C. felis, and one identical to a Cryptosporidium sp. isolate from a dog. This is the first identification of human infection with the latter two genotypes

Echinochasmus leopoldinae n. sp. (Trematoda: Echinostomatidae) and data on its life-cycle.

Ficha diagnostica del holotipo de Echinochasmus leopoldinae, especie descrita en este protologo

Life-cycle of Echinochasmus macrocaudatus n. sp. (Trematoda: Echinostomatidae).

Ficha diagnostica del holotipo de Echinochasmus macrocaudatus, especie descrita en este protologo

Intestinal parasites of dogs (Canis lupus familiaris) in Svalbard (Norway): Low prevalence and limited transmission with wildlife

The domesticated dogs (Canis lupus familiaris Linnaeus, 1758) are widely kept on all continents and could share the parasites with free-living animals. To understand the transmission of intestinal parasites between dogs kept on the four dog stations and wildlife in Svalbard, 170 faecal samples of dogs and 203 of wildlife included arctic fox (Vulpes lagopus Linnaeus, 1758, n=62); Svalbard reindeer (Rangifer tarandus platyrhynchus Vrolik, 1829, n=106); sibling vole (Microtus levis Miller, 1908, n=63); pink-footed goose (Anser brachyrhynchus Baillon, 1834, n=30); little auk (Alle alle Linnaeus, 1758, n=49) and black-legged kittiwake (Risa tridactyla Linnaeus, 1758, n=18) were individually screened for the presence of intestinal parasites using microscopy and PCR/sequencing methods. Additionally, the results of the study were compared with previous studies performed in the same area. Roundworm Toxascaris leonina Linstow, 1902 was found microscopically and by PCR in a dog (n=1). The specific DNA of three species of parasitic protists was detected in dogs from different yards. Phylogenetic analyses revealed the presence of Cryptosporidium canis Fayer, Trout, Xiao, Morgan, Lal and Dubey, 2001 (n=1), Encephalitozoon cuniculi Levaditi, Nicolau and Schoen, 1923 genotype II (n=4) and dog specific Enterocytozoon bieneusi Desportes, Le Charpentier, Galian, Bernard, Cochand-Priollet, Lavergne, Ravisse and Modigliani, 1985 genotypes (n=12). This study showed overall a low prevalence of intestinal parasites in dogs in Svalbard and possible but minimal transmission with wildlife.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author

Population co-divergence in common cuttlefish (Sepia officinalis) and its dicyemid parasite in the Mediterranean Sea.

Population structure and biogeography of marine organisms are formed by different drivers than in terrestrial organisms. Yet, very little information is available even for common marine organisms and even less for their associated parasites. Here we report the first analysis of population structure of both a cephalopod host (Sepia officinalis) and its dicyemid parasite, based on a homologous molecular marker (cytochrome oxidase I). We show that the population of common cuttlefish in the Mediterranean area is fragmented into subpopulations, with some areas featuring restricted level of gene flow. Amongst the studied areas, Sardinia was genetically the most diverse and Cyprus the most isolated. At a larger scale, across the Mediterranean, the population structure of the parasite shows co-diversification pattern with its host, but a slower rate of diversification. Differences between the two counterparts are more obvious at a finer scale, where parasite populations show increased level of fragmentation and lower local diversities. This discrepancy can be caused by local extinctions and replacements taking place more frequently in the dicyemid populations, due to their parasitic lifestyle

Encephalitozoon cuniculi Genotype I as a Causative Agent of Brain Abscess in an Immunocompetent Patient▿

A brain abscess caused by Encephalitozoon cuniculi genotype I together with Streptococcus intermedius occurred in a patient without major immunocompromise and with diabetes. The distinguishing clinical signs were hemiparesis and epilepsy. The microsporidium was observed in the abscess aspirate, and its specific DNA was also detected in stool and urine. The patient was successfully treated with albendazole and mebendazole