BK polyomavirus nephropathy in two kidney transplant patients with distinct diagnostic strategies for BK virus and similar clinical outcomes: two case reports.

Background: BK polyomavirus-associated nephropathy is an important cause of post-transplantation renal failure. We present two cases of BK polyomavirus-associated nephropathy who were submitted to contrasting strategies of clinical follow-up to BK polyomavirus reactivation, but progressed to a similar final outcome.

Case Presentation: Case 1 is a 37-year-old white man whose graft had never presented a good glomerular filtration rate function, with episodes of tacrolimus nephrotoxicity, and no urinary monitoring for BK polyomavirus; stage B BK polyomavirus-associated nephropathy was diagnosed by biopsy at 14 months post-transplant.

Clinical correlates of pp65 antigenemia monitoring in the first months of post kidney transplant in patients undergoing universal prophylaxis or preemptive therapy.

Introduction: Human cytomegalovirus is a major cause of morbidity in kidney transplant patients.

Objectives: We aimed to study viral replication and serological response in the first months post kidney transplant in patients undergoing universal prophylaxis or preemptive therapy and correlate the findings with the clinical course of Human cytomegalovirus infection.

Patients And Methods: Independent from the clinical strategy adopted for managing Human cytomegalovirus infection, prophylaxis versus preemptive therapy, the pp65 antigenemia assay and serological response were assessed on the day of transplantation, and then weekly during the first three months of post-transplant.

Zoonotic Enterocytozoon bieneusi genotypes found in brazilian sheep.

The presence of Enterocytozoon bieneusi in sheep has been reported in only three countries worldwide. The present study has found E. bieneusi in Brazilian sheep for the first time; in 24/125 (19.

Molecular characterization of Cryptosporidium in Brazilian sheep.

Feces were collected from 125 sheep between January and December 2007, on ten farms in the State of Rio de Janeiro, Brazil, and examined for the presence of Cryptosporidium. Ninety samples were collected from lambs 2 to 6 months of age, and 35 were from sheep over 12 months of age. All samples were subjected to molecular analysis by polymerase chain reaction (nested PCR) in two steps of the SSU rRNA.

[Swine cryptosporidiosis related to production systems in the state of Rio de Janeiro].

The purpose of this study was to verify the prevalence of cryptosporidiosis in swine farms of familiar and technical production systems, located in the North and Northwest Regions of the State of Rio de Janeiro. A total of 103 fecal samples of different swines were collected, proceeding from 10 farms, of which five were familiar and five technical. For the diagnosis, the modified concentration by sedimentation technique with posterior staining by modified Ziehl-Neelsen was used.

[Importance of the handling in criptosporidiosis in sheep rearing].

With the objective to verify which are the risk factors in ovine cryptosporidiosis, 130 ovine fecal samples were collected in ten farms in Campos dos Goytacazes and Macaé and analyzed using the modified Ziehl-Neelsen technique. Hygiene, breeding system, clinic alteration, veterinary assistance and source of water which were furnished to the animals were analyzed by χ2 Test and Fisher Exact Test, with Yates correction (when it was necessary) and 95% of confidence interval. Oocysts were observed in 47% of the farms.