Genotyping of gastroenteric viruses in hospitalised children: first report of norovirus GII.21 in Brazil.

abstract：:Thermophilic campylobacters were isolated from three sewage plants in Rio de Janeiro, RJ, Brazil and identified. Laboratory analysis of 390 sewage samples showed the presence of 169 thermophilic strains. The results demonstrated that human and animal pathogenic biotypes could be isolated from activated sludge during t...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Lauria-Filgueiras AL,Hofer E

更新日期：1998-05-01 00:00:00

abstract：:Feline coprolites were examined for parasites with the aim of studying ancient infections that occurred in the Patagonian region during the Holocene period. Eggs compatible to Trichuris sp., Calodium sp., Eucoleus sp., Nematodirus sp., Oesophagostomum sp. (Nematoda), Monoecocestus sp. (Cestoda) and Eimeria macusaniens...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Fugassa MH,Beltrame MO,Bayer MS,Sardella NH

更新日期：2009-12-01 00:00:00

abstract：BACKGROUND:In recent years, South America has suffered the burden of continuous high impact outbreaks of dengue, chikungunya and Zika. Aedes aegypti is the main mosquito vector of these arboviruses and its control is the only solution to reduce transmission. OBJECTIVES:In order to improve vector control it is essentia...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Salgueiro P,Restrepo-Zabaleta J,Costa M,Galardo AKR,Pinto J,Gaborit P,Guidez A,Martins AJ,Dusfour I

更新日期：2019-09-23 00:00:00

abstract：:Helmintex is a sensitive method used for detecting Schistosoma mansoni eggs. Here, we describe the observed frequency of six proposed criteria associated with the identification of S. mansoni eggs prepared with the Helmintex method and stained with ninhydrin. The efficacy of these criteria in classifying S. mansoni eg...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Souza RP,Favero V,Pascoal VF,Lindholz C,Bittencourt HR,Graeff-Teixeira C

更新日期：2019-01-01 00:00:00

abstract：:The object of the investigation was the evaluation of the susceptibility to antibiotic and chemotherapeutic agents of 240 strains of Salmonella agona isolated from different sources (human, food and environment) obtained from five Brazilian states (Minas Gerais, São Paulo, Rio de Janeiro, Pernambuco and Rio Grande do ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Solari CA,dos Reis EM,Dias JC,Hofer E

更新日期：1986-01-01 00:00:00

abstract：:Psychodid sand flies are blood-sucking fly vectors of several parasitic diseases. The oldest definitive record of this group is from the Lower Cretaceous amber of Lebanon (circa-135 to -125 My), but the high diversity within this group supports the idea that the psychodoids originated much earlier in history. The pala...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Azar D,Nel A

更新日期：2003-01-01 00:00:00

abstract：:This study objective was to evaluate the cytokines associated with early events of hepatic fibrosis in schistosomiasis mansoni. Hepatic fibrosis was classified by ultrasonography in 94 patients. Immunological evaluation was performed by measurement of secreted cytokines (interleukin IL-5, IL-10, IL-13, interferon-gamm...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Magalhães A,Miranda DG,Miranda RG,Araújo MI,Jesus AA,Silva A,Santana LB,Pearce E,Carvalho EM,Jesus AR

更新日期：2004-01-01 00:00:00

abstract：:Positive Montenegro's skin test is a delayed type hypersensitivity reaction widely used as indicative of previous infection with Leishmania in both humans and dogs. Montenegro's antigen consists of a crude Leishmania antigen solution, usually containing thimerosal as preserving agent. In this work it is shown that a l...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Paranhos-Silva M,Pontes-de-Carvalho LC,de Sá Oliveira GG,Nascimento EG,dos-Santos WL

更新日期：2001-07-01 00:00:00

abstract：:This study's objective was to search for Cryptosporidium sp. in diarrheic feces from children aged zero to 12 years and cared for at medical units within Universidade Federal de Uberlândia or at a private practice in Uberlândia, State of Minas Gerais, Brazil, from September 1992 to August 1993. Three fecal samples pre...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gennari-Cardoso ML,Costa-Cruz JM,de Castro E,Lima LM,Prudente DV

更新日期：1996-09-01 00:00:00

abstract：:Virulence and antibiotic resistance are significant determinants of the types of infections caused by Staphylococcus aureus and paediatric groups remain among the most commonly affected populations. The goal of this study was to characterise virulence genes of methicillin-susceptible S. aureus (MSSA) and methicillin-r...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Jiménez JN,Ocampo AM,Vanegas JM,Rodríguez EA,Garcés CG,Patiño LA,Ospina S,Correa MM

更新日期：2011-12-01 00:00:00

abstract：:The diagnosis of meningitic angiostrongyliasis (MA) is based on clinical criteria. A lumbar puncture is used as a diagnostic tool, but it is an invasive procedure. The blood eosinophil levels are also assessed and used in the diagnosis of this disease. We enrolled 47 patients with serologically proven MA and 131 contr...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sawanyawisuth K,Sawanyawisuth K,Senthong V,Limpawattana P,Intapan PM,Tiamkao S,Jitpimolmard S,Chotmongkol V,Barrett-Connor E

更新日期：2010-11-01 00:00:00

abstract：:Corynebacterium striatum is a potentially pathogenic microorganism with the ability to produce outbreaks of nosocomial infections. Here, we document a nosocomial outbreak caused by multidrug-resistant (MDR) C. striatum in Rio de Janeiro, Brazil. C. striatum identification was confirmed by 16S rRNA and rpoB gene sequen...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Baio PV,Mota HF,Freitas AD,Gomes DL,Ramos JN,Sant'Anna LO,Souza MC,Camello TC,Hirata Junior R,Vieira VV,Mattos-Guaraldi AL

更新日期：2013-02-01 00:00:00

abstract：:Chimpanzees are being used in the study of immune response to Plasmodium falciparum malaria pre-erythrocytic stages (MPES). Responses induced by immunisation with recombinant/synthetic antigens and by irradiated sporozoites are being evaluated in a model system that is phylogenetically close to humans and that is amen...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Thomas AW,Slierendregt B,Mons B,Druilhe P

更新日期：1994-01-01 00:00:00

abstract：:Qualitative bacteriological analysis was carried out in two sewage treatment plants in the city of Rio de Janeiro during the period 1984-1985. Specific points of the plants were selected for the collection of affluent and effluent samples. The study involved the isolation and the identification of 540 cultures of Esch...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ribeiro Dias JC,Vicente AC,Hofer E

更新日期：1987-07-01 00:00:00

abstract：:BACKGROUND The main strategy to control human malaria still relies on specific drug treatment, limited now by Plasmodium falciparum-resistant parasites, including that against artemisinin derivatives. Despite the large number of active compounds described in the literature, few of them reached full development against...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Penna-Coutinho J,Aguiar AC,Krettli\/ AU

更新日期：2018-12-06 00:00:00

abstract：:Leptospirosis is a zoonotic disease caused by pathogenic spirochetes of the Leptospira genus. Vaccination with bacterins has severe limitations. Here, we evaluated the N-terminal region of the leptospiral immunoglobulin-like B protein (LigBrep) as a vaccine candidate against leptospirosis using immunisation strategies...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Forster KM,Hartwig DD,Oliveira TL,Bacelo KL,Schuch R,Amaral MG,Dellagostin OA

更新日期：2015-12-01 00:00:00

abstract：:Mutations in the rpoB locus confer conformational changes leading to defective binding of rifampin (RIF) to rpoB and consequently resistance in Mycobacterium tuberculosis. Polymerase chain reaction-single-strand conformation polymorphism (PCR-SSCP) was established as a rapid screening test for the detection of mutatio...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Isfahani BN,Tavakoli A,Salehi M,Tazhibi M

更新日期：2006-09-01 00:00:00

abstract：:A simple and rapid method for differentiating the sibling species Biomphalaria tenagophila and Biomphalaria occidentalis by agarose gel electrophoresis (AGE) is described. Snail hemolymph is used as the test sample and the red coloration of the hemoglobin fraction permits visualization of the migration patterns withou...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bailey JB,Michelson EH,Paraense WL

更新日期：1986-07-01 00:00:00

abstract：:The seroprevalence of toxoplasmosis in 832 pregnant women in Miracema, Rio de Janeiro, was determined and 75.1% (625) and 2.0% (17) were anti-Toxoplasma gondii IgG and IgM positive, respectively. Out of the 17 IgM positive pregnant women, only one had low avidity IgG corresponding to the acute phase of the infection. ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Ribeiro AC,Mutis MS,Fernandes O

更新日期：2008-09-01 00:00:00

abstract：:The purpose of this study was to investigate the genotypes of Giardia lamblia from human and animal feces and their epidemiological and clinical characteristics in Argentina, South America. Seventy isolates, 60 from humans (adults and children), eight from dogs and two from cows were processed by polymerase chain reac...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Minvielle MC,Molina NB,Polverino D,Basualdo JA

更新日期：2008-02-01 00:00:00

abstract：:Triatoma sordida is a peridomestic Triatominae that could play an important role in the transmission of Trypanosoma cruzi, although its vectorial competence is not well known. The aim of this work was to evaluate two aspects of the vectorial competence: the feeding behaviour and defaecation patterns, and to compare th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Crocco LB,Catalá SS

更新日期：1996-07-01 00:00:00

abstract：:In the Saimiri monkey, an experimental host for human malaria, acquired protection against Plasmodium falciparum blood stages depends on the IgG antibody populations developed. In vivo protective anti-falciparum activity of IgG antibodies is correlated with the in vitro opsonizing activity promoting phagocytosis of pa...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gysin J

更新日期：1992-01-01 00:00:00

abstract：:The dual function of eosinophils has been evidenced in protective immunity against parasites as well as in pathological manifestations during allergic disorders. We have demonstrated that a new class of IgE receptors, Fc epsilon RII/CD23, was involved in the functional duality of eosinophils and other proinflammatory ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Nutten S,Trottein F,Gounni AS,Papin JP,Capron A,Capron M

更新日期：1997-01-01 00:00:00

abstract：:As pyrethroids are presently the favored group of insecticides to control triatomines, we performed a series of bioassays to determine the intrinsic activity of some of the main compounds used in the control campaigns, against five of the main species of triatomines to be controlled. Comparing the insecticides it can ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira Filho AM

更新日期：1999-01-01 00:00:00

abstract：:Sixty eight patients with localized cutaneous leishmaniasis from an area with Leishmania (Viannia) braziliensis transmission had cultures performed with a modified Marzochís vacuum aspiratory puncture technique to establish sensitivity and contamination rate with this new method. Overall sensitivity of three aspirates...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Romero GA,Sampaio RN,Macedo Vde O,Marsden PD

更新日期：1999-07-01 00:00:00

abstract：:We evaluated the potential of Mesocyclops annulatus as a control agent of Aedes aegypti in La Plata city (Argentina). Mosquito larval survivorship due to predation by these copepods was estimated at weekly intervals during the oviposition period of A. aegypti. Mean weekly A. aegypti larval survivorship in cylindrical ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Marti GA,Micieli MV,Scorsetti AC,Liljesthröm G

更新日期：2004-08-01 00:00:00

abstract：:Aspects related to hatching, lifetime, number of blood meals for molting, mortality, feeding time, and postfeeding defecation delay were evaluated and compared in each instar of three North American Triatominae: Triatoma gerstaeckeri, Triatoma lecticularia and Triatoma protracta, all of them fed on rabbits. No signifi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Martínez-Ibarra JA,Alejandre-Aguilar R,Paredes-González E,Martínez-Silva MA,Solorio-Cibrián M,Nogueda-Torres B,Trujillo-Contreras F,Novelo-López M

更新日期：2007-12-01 00:00:00

abstract：:This study investigated the rate of human papillomavirus (HPV) persistence, associated risk factors, and predictors of cytological alteration outcomes in a cohort of human immunodeficiency virus-infected pregnant women over an 18-month period. HPV was typed through L1 gene sequencing in cervical smears collected durin...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Meyrelles AR,Siqueira JD,Santos PP,Hofer CB,Luiz RR,Seuánez HN,Almeida G,Soares MA,Soares EA,Machado ES

更新日期：2016-02-01 00:00:00

abstract：:New alternative insecticides are necessary for the chemical control of head lice. In this study the fumigant knockdown time 50% (KT50) and repellency index (RI) of three aliphatic lactones was compared with two essential oils and DDVP, against permethrin-resistance Pediculus humanus capitis from Argentina. In the fumi...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Toloza AC,Zygadlo J,Mougabure-Cueto G,Zerba E,Faillaci S,Picollo MI

更新日期：2006-02-01 00:00:00

abstract：:Chagas cardiomyopathy is the most frequent and most severe manifestation of chronic Chagas disease, and is one of the leading causes of morbidity and death in Latin America. Although the pathogenesis of Chagas cardiomyopathy is incompletely understood, it may involve several mechanisms, including parasite-dependent my...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Rassi A Jr,Marin JA Neto,Rassi A

更新日期：2017-03-01 00:00:00