Experimental infection of Calomys callosus (Rodentia, Cricetidae) by Toxoplasma gondii.

abstract：:Faeces from 17 children less than 1.6 years old and 15 adults more than 22 years old were collected during an outbreak of gastroenteritis in a day care nursery and screened for the presence of adenovirus and rotavirus by enzyme immunoassay (EIARA) and other viruses by electron microscopy (EM) and polyacrylamide gel el...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Castro L,Rodrigues Ddos P,Flauzino R,Moura M,Leite JP

更新日期：1994-01-01 00:00:00

abstract：:Rats and mice are among the most susceptible hosts for the helminth Capillaria hepatica. More information on the similarities and differences between the hepatic pathology presented by these two parasite hosts are needed, since they may represent good models for the study of hepatic fibrosis. Early changes are similar...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Andrade SB,Andrade ZA

更新日期：2004-06-01 00:00:00

abstract：:This paper presents epidemiological, laboratory, and clinical data on 12 years of dengue virus activity in the State of Rio de Janeiro from the time the disease was first confirmed virologically in April 1986 through April 1998. DEN-1 and DEN-2 viruses are the serotypes circulating in the state and were responsible fo...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Nogueira RM,Miagostovich MP,Schatzmayr HG,dos Santos FB,de Araújo ES,de Filippis AM,de Souza RV,Zagne SM,Nicolai C,Baran M,Teixeira Filho G

更新日期：1999-05-01 00:00:00

abstract：:Different molecular-genetic methods were used to identify a cohort of Leishmania strains from natural foci of zoonotic cutaneous leishmaniasis located in Central Asia, on the former USSR territory. The results obtained using isoenzymes, PCR, restriction fragment length polymorphisms of kDNA and molecular hybridization...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Strelkova MV,Pacheco RS,Bulat SA,Rakitskaya TA

更新日期：1997-01-01 00:00:00

abstract：:This article tries to demonstrate by new pathological findings (with the use of immunohistochemical technique and confocal laser microscopy) that chronic chagasic cardiomyopathy is a result of multiple factors involving myocarditis, immunodepression, severe fibrosis and microvessels dilatation and that all of these al...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Lourdes Higuchi M

更新日期：1999-01-01 00:00:00

abstract：:Catadiscus pomaceae sp. n. from the intestine of the prosobranch mollusc Pomacea canaliculata (Lamarck, 1801), is described. The host snail was collected from a lenitic biotope belonging to the Riachuelo basin (Corrientes province, Argentina) during 1985-1986. So far the species of the genus Catadiscus Cohn, 1904 have...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Hamann MI

更新日期：1992-01-01 00:00:00

abstract：:Acute cases of schistosomiasis have been found on the coastal area of Pernambuco, Brazil, due to environmental disturbances and disorderly occupation of the urban areas. This study identifies and spatially marks the main foci of the snail host species, Biomphalaria glabrata on Itamaracá Island. The chaotic occupation ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Barbosa CS,Araújo KC,Antunes L,Favre T,Pieri OS

更新日期：2004-01-01 00:00:00

abstract：:A study on tick-borne rickettsiosis was developed in the county of Santa Cruz do Escalvado, State of Minas Gerais, Brazil, where a clinical case of the disease, confirmed by necropsy, had been reported. Of the 1,254 ticks collected, 1,061 belonged to the Amblyomma genus, 57 to the Rhipicephalus sanguineus species, 81 ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Lemos ER,Machado RD,Pires FD,Machado SL,da Costa LM,Coura JR

更新日期：1997-07-01 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：:Non-bilayer phospholipid arrangements are three-dimensional structures that form when anionic phospholipids with an intermediate structure of the tubular hexagonal phase II are present in a bilayer of lipids. Antibodies that recognise these arrangements have been described in patients with antiphospholipid syndrome an...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Baeza I,Wong-Baeza C,Valerdi E,Serafin-Lopez J,Ibáñez M,Estrada-Parra S,Wong C,Estrada-Garcia I

更新日期：2012-12-01 00:00:00

abstract：:This study aims to investigate the importance of the serum factors present in the plasma of resistant Biomphalaria tenagophila snails, when transferred to susceptible conspecific. Susceptible B. tenagophila (CF) received plasma from resistant B. tenagophila (Taim), and both were later infected with Schistosoma mansoni...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Coelho JR,Bezerra FS

更新日期：2006-02-01 00:00:00

abstract：BACKGROUND:In Brazil, the Yellow Fever virus (YFV) is endemic in the Amazon, from where it eventually expands into epidemic waves. Coastal south-eastern (SE) Brazil, which has been a YFV-free region for eight decades, has reported a severe sylvatic outbreak since 2016. The virus spread from the north toward the south o...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Abreu FVS,Delatorre E,Dos Santos AAC,Ferreira-de-Brito A,de Castro MG,Ribeiro IP,Furtado ND,Vargas WP,Ribeiro MS,Meneguete P,Bonaldo MC,Bello G,Lourenço-de-Oliveira R

更新日期：2019-01-01 00:00:00

abstract：:Sand flies were collected in the central region of the state of Rondônia (W 64 degrees 30' to 63 degrees 00' and S 10 degrees 00'to 11 degrees 00') using Shannon and CDC light traps from October 1997 to August 2000. A total of 85,850 specimens representing 78 named species were captured. Of these 14 were new records f...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Gil LH,Basano SA,Souza AA,Silva MG,Barata I,Ishikawa EA,Camargo LM,Shaw JJ

更新日期：2003-09-01 00:00:00

abstract：:Applications of flow cytometry to clinical and experimental hematopoietic stem cell transplantation (HSCT) are discussed in this review covering the following topics: diagnosis and classification of lymphohematologic disorders, quantitation of hematopoietic progenitors in the graft, lymphohematopoietic reconstitution ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Voltarelli JC

更新日期：2000-05-01 00:00:00

abstract：:A 19-month mark-release-recapture study of Neotoma micropus with sequential screening for Leishmania mexicana was conducted in Bexar County, Texas, USA. The overall prevalence rate was 14.7% and the seasonal prevalence rates ranged from 3.8 to 26.7%. Nine incident cases were detected, giving an incidence rate of 15.5/...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Raymond RW,McHugh CP,Witt LR,Kerr SF

更新日期：2003-03-01 00:00:00

abstract：:A large bibliographic survey provided data on Trypanosoma cruzi serology covering the period 1948-1984. Epidemiological-demographic methods provided an estimate of 11% for the prevalence of positive serology in Brazil, by 1984. Significant temporal trends were observed for most of the Brazilian geographical regions as...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Feitosa MF,Krieger H

更新日期：1991-04-01 00:00:00

abstract：:Goats from the Venezuelan northern arid zones were found infested by the following nematodes: Haemonchus contortus, Trichostrongylus axei, T. colubriformis, Cooperia curticei, Oesophagostomum columbianum, Skrjabinema ovis y Trichuris globulosa. The Shannon-Weaver index of diversity values oscillated between 0.045 and ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Morales G,Pino LA,Aldana E,Perdomo L,Molina E

更新日期：1986-04-01 00:00:00

abstract：:In order to determine the best type of rabies vaccine to use as a booster, 78 serological samples from singly vaccinated cattle were analyzed by counterimmunoelectrophoresis technique. The animals were divided into several groups, received the first vaccine dose with modified live virus vaccine (ERA strain) and were r...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Oliveira AN,Andrade MC,Silva MV,Moura WC,Cortez Contreiras E

更新日期：2000-01-01 00:00:00

abstract：:Early Cretaceous flagellates with characters typical of trypanosomatids were found in the gut of sand fly larvae, as well as in surrounding debris, in Burmese amber. This discovery supports a hypothesis in which free-living trypanosomatids could have been acquired by sand fly larvae in their feeding environment and th...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Poinar G Jr

更新日期：2007-08-01 00:00:00

abstract：:The objective of this work was to characterize, and compare different morphological types of hemocytes of Rhodnius prolixus, Rhodnius robustus, Rhodnius neglectus, Triatoma infestans, Panstrongylus megistus, and Dipetalogaster maximus. This information provides the basis for studying the cellular immune systems of the...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： de Azambuja P,Garcia ES,Ratcliffe NA

更新日期：1991-01-01 00:00:00

abstract：:The lack of an experimental animal model for the study of dengue pathogenesis is a limiting factor for the development of vaccines and drugs. In previous studies, our group demonstrated the susceptibility of BALB/c mice to infection by dengue virus (DENV) 1 and 2, and the virus was successfully isolated in several org...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Rasinhas ADC,Silva MAND,Caldas GC,Jácome FC,Leonardo R,Santos FBD,Nunes PCG,Barth OM,Barreto-Vieira DF

更新日期：2018-02-05 00:00:00

abstract：:The aim of this study was to determine the incidence of congenital toxoplasmosis (CT) and to assess the performances of prenatal and neonatal diagnoses. From 1994-2005, in Toulouse University Hospital, France, amniocentesis was performed on 352 pregnant women who were infected during pregnancy. All women were treated ...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Bessières MH,Berrebi A,Cassaing S,Fillaux J,Cambus JP,Berry A,Assouline C,Ayoubi JM,Magnaval JF

更新日期：2009-03-01 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：:From May to August 1999, we evaluated 401 patients from a pediatric hospital of Havana City. One group was composed of 113 patients with diarrhea admitted to the Gastroenterology ward and a second consisted of 288 patients without diarrhea, admitted for other reasons, and hospitalized within the same time period. Thre...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Núñez FA,González OM,González I,Escobedo AA,Cordoví RA

更新日期：2003-06-01 00:00:00

abstract：:The characteristics of tuberculosis (TB) patients related to a chain of recent TB transmissions were investigated. Mycobacterium tuberculosis (MTB) isolates (120) were genotyped using the restriction fragment length polymorphism-IS6110 (R), spacer oligotyping (S) and mycobacterial interspersed repetitive units-variabl...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Peñuelas-Urquides K,Martínez-Rodríguez HG,Enciso-Moreno JA,Molina-Salinas GM,Silva-Ramírez B,Padilla-Rivas GR,Vera-Cabrera L,Torres-de-la-Cruz VM,Martínez-Martínez YB,Ortega-García JL,Garza-Treviño EN,Enciso-Moreno L,Saucedo-Cárd

更新日期：2014-09-01 00:00:00

abstract：:The antibody response to Plasmodium falciparum parasites of naturally infected population is critical to elucidate the role of polymorphic alleles in malaria. Thus, we evaluated the impact of antigenic diversity of repetitive and family dimorphic domains of the merozoite surface protein 2 (MSP-2) on immune response of...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Sallenave-Sales S,Faria CP,Zalis MG,Daniel-Ribeiro CT,Ferreira-da-Cruz Mde F

更新日期：2007-06-01 00:00:00

abstract：:In Brazil, until 2004, the immunization policy against diphtheria involved childhood vaccination with no official routine booster dose administered after 15 years of age. This study assessed functional antibody levels against diphtheria among blood donors. A total of 140 blood samples were collected, and diphtheria an...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Pimenta FP,Damasco PV,Cerbino Neto J,Lopes GS,Hirata R Jr,Milagres LG,Mattos-Guaraldi AL

更新日期：2006-06-01 00:00:00

abstract：:In recent years, the development of new tools to gather field information about vector ecological parameters has increased. This report evaluated the BG-Sentinel Trap (BGS-Trap), a promising new attempt to improve collection of the dengue vector, Aedes aegypti. The efficacy of the BGS-Trap was compared with the CDC ba...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Maciel-de-Freitas R,Eiras AE,Lourenço-de-Oliveira R

更新日期：2006-05-01 00:00:00

abstract：:A one year-long study (March 1979-March 1980) was carried out at San Esteban, an endemic focus of cutaneous leishmaniasis in Northern Venezuela, with the aim of observing the seasonal fluctuation of the local phlebotomine sandflies species. The influence of climatic factors (temperature, relative humidity and rainfall...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Feliciangeli MD

更新日期：1987-04-01 00:00:00

abstract：:Certifying the absence of Chagas disease transmission by native vectors lacks scientific grounds and weakens long-term control-surveillance systems to the detriment of people living under risk conditions. Instead, a regular "certification of good practice" (including vector control-surveillance, case detection/patient...

journal_title：Memorias do Instituto Oswaldo Cruz

authors： Abad-Franch F,Diotaiuti L,Gurgel-Gonçalves R,Gürtler RE

更新日期：2013-04-01 00:00:00