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| Registros recuperados: 14 | |
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| Heller,Léo; Vieira,Maria Berenice Cardoso Martins; Brito,Ludmila Ladeira Alves de; Salvador,Daniella Pedrosa. |
| Currently, a major challenge on producing high-quality drinking water is to monitor pathogens, such as Giardia, Cryptosporidium and enteric viruses. Due to limitations of the analytical methods available to detect pathogens in water, the research of surrogate indicators is an up-to-date subject. In view of these aspects, a pilot scale study was performed to evaluate the association between microbiological and physical indicators and the presence of Giardia spp and Cryptosporidium sp in the effluent of upflow and downflow slow sand filters. The results showed that efficient bacterial removal could indicate suitable protozoa removal. Although coliforms and Escherichia coli do not present the appropriate physiological profile for an "ideal" indicator, they... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cryptosporidium; Giardia; Slow sand filtration; Surrogate; Microbiological indicator. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200029 |
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| Santos,MMAB; Peiró,JR; Meireles,MV. |
| Avian cryptosporidiosis has been reported in more than 30 species of birds. To date, the species infecting birds are C. baileyi, C. galli and C. meleagridis. In this study, the morphological, clinical and molecular characteristics of a Brazilian ostrich isolate of Cryptosporidium are described. The oocysts of this Brazilian isolate are larger and more elongated than those of Cryptosporidium previously reported in ostriches, which were morphologically similar to C. meleagridis. Morphological, biological and molecular analyses demonstrated similarity of this ostrich isolate with C. baileyi, suggesting that there are at least two Cryptosporidium species infecting ostriches; one with molecular, biological and morphological characteristics related to C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clinical signs; Cryptosporidium; Morphology; Ostriches; PCR-RFLP. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200008 |
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| Kandulu, John; Bryan, Brett. |
| Evaluations of pathogen management options have focussed on assessing relative removal effectiveness as a basis for prioritising alternative management investment decisions. Using a case study of the Myponga catchment, South Australia, this paper presents results of a cost-effectiveness risk analysis of 13 catchment- and treatment-based water quality management alternatives for mitigating Cryptosporidium risk. A range of costs and benefits including set-up and operating costs, farm business costs and benefits, and environmental service benefits are considered in comparing the net cost associated with each management alternative. Considering the broader range of costs and benefits changes the relative cost-effectiveness of water quality management... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Cryptosporidium; Catchment management; Benefit cost; Cost effectiveness. |
| Ano: 2009 |
URL: http://purl.umn.edu/48190 |
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| Lallo,Maria Anete; Pereira,Adriano; Araújo,Ronalda; Favorito,Sandra Elisa; Bertolla,Patrícia; Bondan,Eduardo Fernandes. |
| A ocorrência de Giardia, Cryptosporidium e microsporídios foi investigada por meio da análise de 98 amostras fecais de animais silvestres capturados em uma área de desmatamento para a construção das barragens de Paraitinga e Biritiba, localizadas nos Municípios de Mogi das Cruzes, Salesópolis e Biritiba-Mirim, no Estado de São Paulo. As amostras foram obtidas de 46 roedores, 21 marsupiais, 16 sapos, nove morcegos, três primatas e três lagartos. As técnicas de centrífugo-flutuação com sulfato de zinco, de Kinyoun e a coloração de Gram-Chromotrope foram utilizadas, respectivamente, para a pesquisa de Giardia, de Cryptosporidium e de microsporídios. O total de animais parasitados por um dos protozoários investigados foi de 17,35% (17/98). Cistos de Giardia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cryptosporidium; Giardia; Mamíferos silvestres; Microsporídios; Protozoários parasitas; Zoonoses. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000500025 |
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| Certad, Gabriela; Follet, Jérôme; Gantois, Nausicaa; Hammouma-ghelboun, Ourida; Guyot, Karine; Benamrouz-vanneste, Sadia; Fréalle, Emilie; Seesao, Yuwalee; Delaire, Baptiste; Creusy, Colette; Even, Gaël; Verrez-bagnis, Veronique; Ryan, Una; Gay, Mélanie; Aliouat-denis, Cécile; Viscogliosi, Eric. |
| Cryptosporidium, a zoonotic pathogen, is able to infect a wide range of hosts including wild and domestic animals, and humans. Although it is well known that some parasites are both fish pathogens and recognized agents of zoonosis with a public health impact, little information is available concerning the prevalence of Cryptosporidium in wild aquatic environments. To evaluate the prevalence of Cryptosporidium spp. in commercially important edible marine fish in different European seas (English channel, North sea, Bay of Biscay, Celtic sea and Mediterranean sea), 1,853 specimens were collected as part of two surveys. Nested PCR followed by sequence analysis at the 18S rRNA gene locus was used to identify Cryptosporidium spp. The overall prevalence of... |
| Tipo: Text |
Palavras-chave: Cryptosporidium; Edible marine fish; 18S rRNA gene; Gp60; Molecular epidemiology; Phylogeny; Novel genotypes; European seas. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00497/60864/64198.pdf |
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| Registros recuperados: 14 | |
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