cryptosporidium parvum is a zoonotic protozoan parasite with a wide range of vertebrate hosts. the present study was conducted to determine the prevalence of cryptosporidium parvum in urban and rural dogs of the ahvaz area. faecal samples were collected randomly from 93 dogs between may 2005 and september 2007. the studied dogs were divided into two groups (urban and rural) and based on age int...

Cryptosporidium parvum is a protozoan parasite that infects a variety of mammals. The parasite has been shown to harbor a dsRNA virus (CPV) and in the present study, we have developed a CPV transient transfection system for this parasite by using green fluorescent protein (GFP) to replace the partial gene encoding region of the larger dsRNA (CPV-L) and the smaller dsRNA (CPV-S) virus. Two viral...

Nanoparticles (NPs) have received more attention as antiparasitic agents. In the present study, silver and copper nanoparticles were synthesized and characterized using scanning electron microscopy (SEM), transmission electron microscope (TEM) and X-ray fluorescence (XRF). The antiparasitic activity of Ag and CuO nanoparticles were tested against two of the most environmentally spread parasites...

High-resolution 303.6 MHz (31)P NMR spectra have been obtained of perchloric acid extracts of Plasmodium berghei trophozoites, Toxoplasma gondii tachyzoites, and Cryptosporidium parvum oocysts. Essentially complete resonance assignments have been made based on chemical shifts and by coaddition of authentic reference compounds. Signals corresponding to inorganic pyrophosphate were detected in al...

Cryptosporidium parvum causes acute diarrhea in immunocompetent individuals and a severe life-threatening disease in immunocompromised individuals, including AIDs patients. No efficacious therapy for cryptosporidiosis has yet been reported. However, treatment of some patients with cryptosporidiosis with hyperimmune bovine colostrum has ameliorated or eliminated clinical symptoms. Consequently, ...

Cryptosporidium parvum is known as one of the most highly resistant parasites to gamma irradiation. To morphologically have an insight on the radioresistance of this parasite, ultrastructural changes in C. parvum sporozoites were observed after gamma irradiation using various doses (1, 5, 10, and 25 kGy) following a range of post-irradiation incubation times (10 kGy for 6, 12, 24, 48, 72, and 9...

This study aimed to develop a multiplex-touchdown PCR method to simultaneously detect 3 species of protozoan parasites, i.e., Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis, the major causes of traveler's diarrhea and are resistant to standard antimicrobial treatments. The target genes included the Cryptosporidium oocyst wall protein for C. parvum, Glutamate dehydrogenase ...

The 2 main species of Cryptosporidium that infect humans are Cryptosporidium hominis and C. parvum. Here, multilocus fragment analysis of 3 microsatellite loci (ML1, ML2, and gp60) was used to subtype strains from sporadic cases of cryptosporidiosis in Wales and northwest England. Of 72 strains of C. parvum, 63 were typeable at all 3 loci, forming 31 subtypes. These strains formed 3 broad clust...

Neofusicoccum parvum and Rhizoctonia solani are fungal pathogens with an increasing incidence in young grapevine plants. In this study, the antagonistic potential of some strains genus Trichoderma isolated from against these was investigated at laboratory greenhouse levels. In-plate confrontation assays showed that selected could inhibit mycelial growth both taxa, being more effective N. parvum...

Milk of naturally infected animal species is considered an essential reservoir Toxoplasma gondii, Neospora caninum, and Cryptosporidium parvum. An extant survey was performed to measure the T. N. C. parvum incidence periodic frequency amongst milk samples. One-thousand one-hundred sixty raw 400 pasteurized samples were collected. used for DNA extraction. The nested-polymerase chain reaction app...