Novel variants of human herpesvirus 2 from Brazilian HIV-1 coinfected subjects.


:BACKGROUND Human herpesvirus 2 (HHV-2) have DNA genome with a limited genetic variability and have been classified into two clades. OBJECTIVES To identify and characterise six HHV-2 isolates derived from Brazilian women. METHODS HHV-2 isolates were performed polymerase chain reaction (PCR) and sequencing of 2250 pb of the glycoprotein B (gB) coding regions. FINDINGS Four HHV-2 isolates were classified into clade B, while the remaining two, derived from HIV-1 co-infected women, showed a notable genetic divergence (> 1%). MAIN CONCLUSION The results reveal novel HHV-2 variants. The impact of these novel variants on HHV-2 pathogenesis and HIV/HHV-2 coinfection need to be investigated.


Mem Inst Oswaldo Cruz


Lima LRP,Araújo NA,Guterres A,Pilotto JH,Niel C,Paula VS




Has Abstract


2018-12-03 00:00:00














  • Immuno-epidemiology of Schistosoma mansoni infections in a recently exposed community in Senegal.

    abstract::Schistosoma mansoni was introduced in the Senegal basin around 1988, due to man-made ecological changes. Since 1991, we investigate a recent but very intense focus, Ndombo, a village near the city of Richard Toll where the outbreak was first described. Four cohorts, each a random sample (+/- 400 subjects each) from th...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Gryseels B,Stelma F,Talla I,Polman K,Van Dam G,Sow S,Diaw M,Sturrock RF,Decam C,Niang M

    更新日期:1995-03-01 00:00:00

  • In vitro effects of citral on trypanosoma cruzi metacyclogenesis.

    abstract::Citral, the main constituent of lemongrass (Cymbopogon citratus) essential oil, was added to Trypanosoma cruzi cultures grown in TAU3AAG medium to observe the effect on the epimastigote-to-trypomastigote differentiation process (metacyclogenesis). Our results showed that citral (20 μg/mL) did not affect epimastigote v...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Cardoso J,Soares MJ

    更新日期:2010-12-01 00:00:00

  • Comparative analysis by polymerase chain reaction amplified minicircles of kinetoplast DNA of a stable strain of Trypanosoma cruzi from São Felipe, Bahia, its clones and subclones: possibility of predominance of a principal clone in this area.

    abstract::Molecular characterization of one stable strain of Trypanosoma cruzi, the 21 SF, representative of the pattern of strains isolated from the endemic area of São Felipe, State of Bahia, Brazil, maintained for 15 years in laboratory by serial passages in mice and classified as biodeme Type II and zymodeme 2 has been inve...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Campos RF,Gonçalves MS,dos Reis EA,dos Reis MG,Andrade SG

    更新日期:1999-01-01 00:00:00

  • Gastropods as intermediate hosts of Angiostrongylus spp. in the Americas: bioecological characteristics and geographical distribution.

    abstract:BACKGROUND:Intermediate hosts are key organisms in maintaining parasite life cycles, because they can act as amplifiers in the transmission from natural reservoirs to humans. One of the most important groups of intermediate hosts for zoonotic nematode infections are gastropods,slugs and snails. These are essential orga...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章,评审


    authors: Valente R,Robles MDR,Diaz JI

    更新日期:2020-11-27 00:00:00

  • Description of Warileya lumbrerasi n. sp. (Diptera:Psychodidae) from Peru.

    abstract::Warileya lumbrerasi n. sp. is described from the northern Peruvian Andes. This species was collected inside houses, and is the seventh species described within the genus Warileya Hertig, 1948. ...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Ogusuku E,Perez JE,Davies CR,Villaseca P

    更新日期:1996-11-01 00:00:00

  • Association between MBL2 haplotypes and dengue severity in children from Rio de Janeiro, Brazil.

    abstract:BACKGROUND:Dengue is an arthropod-borne viral disease with a majority of asymptomatic individuals and clinical manifestations varying from mild fever to severe and potentially lethal forms. An increasing number of genetic studies have outlined the association between host genetic variations and dengue severity. Genes a...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Ornelas AMM,Xavier-de-Carvalho C,Alvarado-Arnez LE,Ribeiro-Alves M,Rossi ÁD,Tanuri A,de Aguiar RS,Moraes MO,Cardoso CC

    更新日期:2019-01-01 00:00:00

  • Mapping the global geographic potential of Zika virus spread.

    abstract::The Americas are presently experiencing the most serious known outbreak of Zika virus (ZIKV). Here, we present a novel set of analyses using environmental characteristics, vector mosquito distributions, and socioeconomic risk factors to develop the first map to detail global ZIKV transmission risk in multiple dimensio...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Samy AM,Thomas SM,Wahed AA,Cohoon KP,Peterson AT

    更新日期:2016-09-01 00:00:00

  • [Bionomical aspects of the Squamatoides triviattus (Diptera, Sarcophagidae) under laboratory conditions].

    abstract::Experiments with Squamatoides trivitattus were carried out in two different controlled temperatures (16 +/- 1 degree C/50-60% RH and 27 +/- 1 degree C/70-80% RH). The viability of larvae and pupae at 27 degrees C was 89.82% and 92.75% respectively. Larvae did not develop at 16 degrees C. Larval development lasted for ...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Salviano RJ,de Mello RP,Beck LC,d'Almeida JM

    更新日期:1996-03-01 00:00:00

  • Evolution and pathology in chagas disease--a review.

    abstract::Trypanosoma cruzi acute infections often go unperceived, but one third of chronically infected individuals die of Chagas disease, showing diverse manifestations affecting the heart, intestines, and nervous systems. A common denominator of pathology in Chagas disease is the minimal rejection unit, whereby parasite-free...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章,评审


    authors: Teixeira AR,Nascimento RJ,Sturm NR

    更新日期:2006-08-01 00:00:00

  • Temporal abundance of Aedes aegypti in Manaus, Brazil, measured by two trap types for adult mosquitoes.

    abstract::A longitudinal study was conducted in Manaus, Brazil, to monitor changes of adult Aedes aegypti (L.) abundance. The objectives were to compare mosquito collections of two trap types, to characterise temporal changes of the mosquito population, to investigate the influence of meteorological variables on mosquito collec...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Degener CM,Ázara TM,Roque RA,Codeço CT,Nobre AA,Ohly JJ,Geier M,Eiras ÁE

    更新日期:2014-12-01 00:00:00

  • Reliability of current estimates of schistosomiasis prevalence in the Rainforest Zone of the state of Pernambuco, Northeastern Brazil.

    abstract::The Program for Schistosomiasis Control within the Unified Health System (PCE-SUS) was implemented by 1999 in the Rainforest Zone or "Zona da Mata" of Pernambuco (ZMP) aiming to carry out biennial stool surveys of whole populations through municipal health organs followed by treatment of the positives through the loca...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Favre TC,Ximenes RA,Galvão AF,Pereira AP,Wanderlei TN,Barbosa CS,Pieri OS

    更新日期:2006-09-01 00:00:00

  • First description of Leishmania (Viannia) infection in Evandromyia saulensis, Pressatia sp. and Trichophoromyia auraensis (Psychodidae: Phlebotominae) in a transmission area of cutaneous leishmaniasis in Acre state, Amazon Basin, Brazil.

    abstract::Studies on the sandfly fauna to evaluate natural infection indexes are still limited in the Brazilian Amazon, a region with an increasing incidence of cutaneous leishmaniasis. Here, by using a multiplex polymerase chain reaction directed to Leishmania kDNA and hybridisation, we were able to identify L. (Viannia) subge...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Araujo-Pereira T,Pita-Pereira D,Boité MC,Melo M,Costa-Rego TA,Fuzari AA,Brazil RP,Britto C

    更新日期:2017-01-01 00:00:00

  • Epidemiological and clinical features of Leishmania (Viannia) braziliensis American cutaneous and mucocutaneous leishmaniasis in the State of Espírito Santo, Brazil.

    abstract::Between 1985 and 2000, epidemiological surveys of the American tegumentary leishmaniasis (ATL) were carried out in several rural and urban communities in Espírito Santo, Brazil. A total of 100 stocks of Leishmania (comprising isolates from both human and canine hosts with ATL) were identified by two methods of molecul...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Falqueto A,Sessa PA,Ferreira AL,Vieira VP,Santos CB,Varejão JB,Cupolillo E,Porrozzi R,Carvalho-Paes LE,Grimaldi Júnior G

    更新日期:2003-12-01 00:00:00

  • Malpighian tubule polytene chromosomes of Culex quinquefasciatus (Diptera, Culicinae).

    abstract::Dipteran polytene chromosomes provide an excellent model for understanding in species complexes, as well as for structural and functional cytogenetics. The status of species in the Culex pipiens complex is controversial and the use of polytene chromosomes for cytogenetic analysis in the subfamily Culicinae has been di...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Campos J,Andrade CF,Recco-Pimentel SM

    更新日期:2003-04-01 00:00:00

  • Applications of flow cytometry to hematopoietic stem cell transplantation.

    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

    pub_type: 杂志文章,评审


    authors: Voltarelli JC

    更新日期:2000-05-01 00:00:00

  • Ultrasound monitoring of structural urinary tract disease in Schistosoma haematobium infection.

    abstract::A major advance in our understanding of the natural history of Schistosoma haematobium-related morbidity has come through the introduction of the portable ultrasound machines for non-invasive examination of the kidneys and bladder. With the use of generators or battery packs to supply power in non-clinical field setti...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: King CH

    更新日期:2002-01-01 00:00:00

  • On cytoadhesion of Plasmodium vivax: raison d'être?

    abstract::It is generally accepted that Plasmodium vivax, the most widely distributed human malaria parasite, causes mild disease and that this species does not sequester in the deep capillaries of internal organs. Recent evidence, however, has demonstrated that there is severe disease, sometimes resulting in death, exclusively...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章,评审


    authors: Costa FT,Lopes SC,Ferrer M,Leite JA,Martin-Jaular L,Bernabeu M,Nogueira PA,Mourão MP,Fernandez-Becerra C,Lacerda MV,del Portillo H

    更新日期:2011-08-01 00:00:00

  • Sensitivity of a vacuum aspiratory culture technique for diagnosis of localized cutaneous leishmaniasis in an endemic area of Leishmania (Viannia) braziliensis transmission.

    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

    pub_type: 杂志文章


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

    更新日期:1999-07-01 00:00:00

  • COI barcode versus morphological identification of Culex (Culex) (Diptera: Culicidae) species: a case study using samples from Argentina and Brazil.

    abstract::Sequences of the cytochrome c oxidase subunit I (COI) mitochondrial gene from adults of 22 Culex (Culex) species from Argentina and Brazil were employed to assess species identification and to test the usefulness of COI for barcoding using the best close match (BCM) algorithm. A pairwise Kimura two-parameter distance ...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Laurito M,Oliveira TM,Almirón WR,Sallum MA

    更新日期:2013-01-01 00:00:00

  • A nuclear ribosomal DNA pseudogene in triatomines opens a new research field of fundamental and applied implications in Chagas disease.

    abstract::A pseudogene, designated as "ps(5.8S+ITS-2)", paralogous to the 5.8S gene and internal transcribed spacer (ITS)-2 of the nuclear ribosomal DNA (rDNA), has been recently found in many triatomine species distributed throughout North America, Central America and northern South America. Among characteristics used as crite...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Zuriaga MA,Mas-Coma S,Bargues MD

    更新日期:2015-05-01 00:00:00

  • Parasitism of Ixodes (Multidentatus) auritulus Neumann (Acari: Ixodidae) on birds from the city of Curitiba, State of Paraná, Southern Brazil.

    abstract::The tick-bird relationship of 56 specimens of birds (Passeriformes and Columbiformes) collected in the city of Curitiba, State of Paraná, between 1990 and 1995, among which 102 specimens of Ixodes (Multidentatus) auritulus were found and analyzed. New host records were also produced including the first report of I. au...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Arzua M,Barros-Battesti DM

    更新日期:1999-09-01 00:00:00

  • Symbiont modulates expression of specific gene categories in Angomonas deanei.

    abstract::Trypanosomatids are parasites that cause disease in humans, animals, and plants. Most are non-pathogenic and some harbor a symbiotic bacterium. Endosymbiosis is part of the evolutionary process of vital cell functions such as respiration and photosynthesis. Angomonas deanei is an example of a symbiont-containing trypa...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Penha LL,Hoffmann L,Souza SS,Martins AC,Bottaro T,Prosdocimi F,Faffe DS,Motta MC,Ürményi TP,Silva R

    更新日期:2016-11-01 00:00:00

  • Prevalence and control of babesiosis in the Americas.

    abstract::This review presents up-to-date information on the distribution and control measures of babesiosis in Latin America. Bovine babesiosis caused by Babesia bovis and B. bigemia will be emphasized. The disease is endemic in most countries and poses a serious economic burden on livestock production in the region (U.S. $136...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章,评审


    authors: Montenegro-James S

    更新日期:1992-01-01 00:00:00

  • Similarity between the association factor of ribosomal subunits and the protein Stm1p from Saccharomyces cerevisiae.

    abstract::A ribosome association factor (AF) was isolated from the yeast Sacchharomyces cerevisiae. Partial amino acid sequence of AF was determined from its fragment of 25 kDa isolated by treating AF with 2-(2-nitrophenylsulfenyl)-3-methyl-3'-Bromoindolenine (BNPS-skatole). This sequence has a 86% identity to the product of th...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Correia H,Medina R,Hernández A,Bustamante E,Chakraburtty K,Herrera F

    更新日期:2004-11-01 00:00:00

  • Functional complementation of a yeast knockout strain by Schistosoma mansoni Rho1 GTPase in the presence of caffeine, an agent that affects mutants defective in the protein kinase C signal transduction pathway.

    abstract::In a previous study, the Schistosoma mansoni Rho1 protein was able to complement Rho1 null mutant Saccharomyces cerevisiae cells at restrictive temperatures and under osmotic stress (low calcium concentration) better than the human homologue (RhoA). It is known that under osmotic stress, the S. cerevisiae Rho1 trigger...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Aguiar PH,Santos DN,Lobo FP,Santos TM,Macedo AM,Pena SD,Machado CR,Franco GR

    更新日期:2006-09-01 00:00:00

  • BCG Moreau Rio de Janeiro: an oral vaccine against tuberculosis--review.

    abstract::The vaccine Bacillus of Calmette Guérin (BCG) was originally developed in France as an oral vaccine against tuberculosis. The oral use of this vaccine was replaced by the parenteral route in almost all countries after the Lubeck disaster. In contrast, Brazil retained the oral delivery of the vaccine until the mid-seve...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 历史文章,杂志文章,评审


    authors: Benévolo-de-Andrade TC,Monteiro-Maia R,Cosgrove C,Castello-Branco LR

    更新日期:2005-08-01 00:00:00

  • Feeding and defaecation patterns in Triatoma sordida.

    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

    pub_type: 杂志文章


    authors: Crocco LB,Catalá SS

    更新日期:1996-07-01 00:00:00

  • Comparative descriptions of eggs from three species of Rhodnius (Hemiptera: Reduviidae: Triatominae).

    abstract::The authors describe and compare the morphological and ultrastructural characteristics of eggs from the three most recent described species of the genus Rhodnius Stål, 1859, which have not previously been studied. These species are Rhodnius colombiensis (Mejia, Galvão & Jurberg 1999), Rhodnius milesi (Carcavallo, Roch...

    journal_title:Memorias do Instituto Oswaldo Cruz

    pub_type: 杂志文章


    authors: Santos CM,Jurberg J,Galvão C,Rosa JA,Júnior WC,Barata JM,Obara MT

    更新日期:2009-11-01 00:00:00

  • Zoonotic parasites associated with felines from the Patagonian Holocene.

    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

    pub_type: 杂志文章


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

    更新日期:2009-12-01 00:00:00

  • Certifying the interruption of Chagas disease transmission by native vectors: cui bono?

    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

    pub_type: 杂志文章


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

    更新日期:2013-04-01 00:00:00