| [occurrence of cryptococcus neoformans in pigeon excrement in the city of pelotas, state of rio grande do sul]. | cryptococcus neoformans is an encapsulated yeast and is the etiological agent for human and animal cryptococcosis. it is found in sources within the environment, including pigeon excrement, and is an important cause of mortality among immunocompromised individuals worldwide. | 2010 | 20464153 |
| cryptococcosis in children. | cryptococcosis is a systemic-opportunistic mycosis caused by two species of the encapsulated yeast-like organism, cryptococcus neoformans and c. gattii, which cause infection in immunocompromised individuals and in immunologically normal hosts, respectively. most susceptible to infection are patients with t-cell deficiencies. the spectrum of disease ranges from asymptomatic pulmonary lesions to disseminated infection with meningoencephalitis. after the emergence of aids, cryptococcal infections ... | 2009 | 19879505 |
| epidemiological profile of cryptococcal meningitis patients in rio grande do sul, brazil. | cryptococcosis is a major opportunistic mycosis which has meningitis as its most frequent clinical presentation and can be fatal in the absence of antifungal therapy. the aetiological agents are cryptococcus neoformans, which affects mainly immunocompromised subjects, and c. gattii, the aetiologic agent for cryptococcosis in healthy individuals. a recent outbreak of cryptococcosis on vancouver island, canada, raised the level of concern about the epidemiology of this disease. in brazil, between ... | 2008 | 18443922 |
| isolation of cryptococcus neoformans var. neoformans serotype d from eucalypts in south brazil. | cryptococcus neoformans causes the second most common opportunistic infection in patients with aids. in brazil, 4.5% of the aids-related opportunistic infections are caused by c. neoformans and all varieties are recognized as etiological agents of cryptococcosis. this pathogen is a ubiquitous environmental yeast, commonly associated with avian excreta and decaying wood, especially eucalypt species. the aim of the present study was to search for c. neoformans in eucalypts and analyze the genotypi ... | 2006 | 17127627 |
| cryptococcus neoformans and cryptococcus gattii isolated from the excreta of psittaciformes in a southern brazilian zoological garden. | cryptococcus neoformans, a major pathogen in immunocompromised patients, is a ubiquitous free-living fungus that can be isolated from soils, avian excreta and plant material. to further study potential saprophytic sources of this yeast in the southern brazilian state rio grande do sul, we analyzed fecal samples from 59 species of captive birds kept in cages at a local zoological garden, belonging to 12 different orders. thirty-eight environmental isolates of c. neoformans were obtained only from ... | 2006 | 16463091 |
| molecular typing of clinical and environmental cryptococcus neoformans isolates in the brazilian state rio grande do sul. | in brazil, 4.5% of the aids-related opportunistic infections are caused by cryptococcus neoformans. this pathogen is a ubiquitous environmental basidiomycetous encapsulated yeast, commonly found in soil and avian excreta. the present study investigates further the population structure of clinical and environmental c. neoformans isolates from south brazil. one hundred five clinical and 19 environmental (pigeon excreta and eucalyptus spp.) isolates from the brazilian state rio grande do sul were c ... | 2003 | 12748052 |
| epidemiological aspects of clinical and environmental cryptococcus neoformans isolates in the brazilian state rio grande do sul. | cryptococcus neoformans is a pathogenic fungus that causes life-threatening meningoencephalitis in immunocompromised patients (hiv-positive patients), and lymphoproliferative disorders in patients subjected to organ transplantation and other immunosuppressive therapies. this fungus is commonly found in soil and avian excreta, mainly from pigeon and turkey. we describe the isolation and characterization of 17 clinical and 10 environmental (pigeon excreta) isolates from the brazilian state rio gra ... | 2002 | 12521120 |
| [neurocryptococcosis in childhood. report of 3 cases in the 1st decade of life]. | the authors report three cases of central nervous system cryptococcosis in children in the first decade of life, from rio grande do sul state, brazil. diagnosis was supported by demonstration of cryptococcus neoformans with india-ink preparations of the spinal fluid and sabouraud's media culture. clinical presentation included acute, subacute and chronic forms. increased intracranial pressure and hydrocephalus were the complications during the course of the disease, and a ventriculoperitoneal sh ... | 1987 | 3329508 |