; 4 Professor Senior do Curso de Pós-Graduação em Ciências Veterinárias da UFPR.RESUMO -Com o objetivo de estabelecerem-se parâmetros segundo a predisposição racial, etária, sexual, localização da incidência do TVT em cães, além das modalidades de diagnóstico e tratamento, foi realizado um estudo estatístico em 52 clínicas de Curitiba e Região Metropolitana, em 1998. Constatou-se que o TVT é principalmente encontrado em animais do sexo feminino que permanecem abandonados nas ruas ou ainda aqueles que freqüentemente atingem as vias públicas. Também concluiu-se que a história e o exame físico dos pacientes, freqüentemente, constituíram-se meios de diagnóstico para o TVT em cães. Entre as modalidades de tratamento, observou-se que a cirurgia foi empregada somente nos casos que exigiam citorredução neoplásica prévia à terapia com agentes anticancerígenos. O sulfato de vincristina na dose de 0,5 a 1,0 mg/ m 2 , administrado semanalmente via endovenosa, durante 6 semanas consecutivas, constituiu-se em opção eficaz no controle do TVT, pois não se observou colateralidade, recidivas e/ou metástases nos cães tratados nesse período.Palavras Chave: Tumor Venéreo Transmissível; Sulfato de Vincristina; Cão.ABSTRACT -A survey has been carried out on the incidence by breed, age, sex and dogs wondering habits of the canine transmissible venereal tumor (TVT) and the therapeutic procedures to which they were submitted. The survey was carried out during 1998 in 52 Veterinary Clinics from Curitiba and its Metropolitan Region. Among 42 cases of TVT recorded during that year, 61.9% (n = 26) were female and 38.09 (n = 16) male dogs. The higher incidence of TVT in female dogs may be due to the fact that they stay abandoned or wondering in streets. Among the therapeutic procedures used for the treatment of TVT bearing dogs, surgical neoplasia citoreduction is frequently used previously to the administration of anticancerous drugs. A weekly intravenous administration of Vincristine -0.5 -1.0 mg/m 2 -during 6 successive weeks, constitutes the best option for the treatment and control of TNT. No bad effects, recidivism and/or metastasis were found in dogs subjected to this therapeutic procedure.

Background: In critically ill children, Candida species and other yeasts appear as an important nosocomial pathogen. The emerging fungal pathogens are usually less susceptible to azole compounds, and the management of such infections could be problematic. Methods: 6,065 bloodstream cultures and 627 catheters from intensive care units and hospitalized oncology pediatric patients were studied. Antifungal susceptibility testing of isolates was performed according to the reference broth microdilution method describedby the National Committee for Clinical Laboratory Standards (M27-A). Results: We found a low activity of fluconazole (FCZ) and itraconazole (ITZ) against Candida glabrata, C. albicans, C. tropicalis and C. haemulonii. Resistant strains to FCZ and ITZ were detected. Conclusion: Results reveal the emergence of antifungal-resistant species and a change in the predominant role of C. albicans as a cause of candidemia in hospitalized children.

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Yeast strains obtained from blood cultures and catheters from intensive care units (ICU) and hospitalised oncology paediatrics were studied. Yeast were the first cause of catheter colonisation (51/627), and the third cause of bloodstream infection (44/6065). In catheter, the most frequent species were Candida albicans (34%), C. parapsilosis (27.7%) and C. tropicalis (15%). In blood, C. albicans (40.8%), C. parapsilosis (26.6%), C. tropicalis (15%). Malassezia furfur and Malassezia sympodialis were isolated from catheters from ICU patients. All isolates were susceptible to amphotericin B, 88.8% to itraconazole and 91.9% to fluconazole. Candida albicans and C. tropicalis strains resistant to fluconazole and itraconazol were detected. These results reveal a change in the predominant role of C. albicans as cause of candidemia in hospitalised children and the emergence of antifungal resistant species. These variations emphasise the importance of performing a permanent surveillance to observe and assess them.