|
|
|
| Registros recuperados: 20 | |
|
| |
|
|
| Dolganova,A.; Sharonov,B.P.. |
| We determined the effect of the antioxidants superoxide dismutase, desferrioxamine and allopurinol on the survival of male CBA mice infected intranasally with 2-5 LD50 lung influenza virus A/Aichi/2/68. Survival for at least 20 days was observed for 45% of the mice that received 1000 U/day superoxide dismutase prepared from red blood cells on days 5, 6, 7 and 8 after infection, and 75% survival was observed for mice that received the same dose on days 4, 5, 6, 7 and 8. Desferrioxamine, 25 mg/kg per day and 100 mg/kg per day injected subcutaneously, resulted in survival rates of 5 and 0%, respectively, compared to 10% survival observed for saline-injected controls. Allopurinol at doses of 5 to 50 mg/kg per day had no effect on mouse survival. These data... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Free radicals; Influenza; Antioxidant; Desferrioxamine; Superoxide dismutase; Allopurinol. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001100012 |
| |
|
| |
|
| |
|
|
| Acevedo,Ana María; Santana,Elaine; Díaz de Arce,Heidy; Pérez,L.J; Caballero,A; Suárez,L; Sánchez,O. |
| La influenza aviar (IA) constituye una gran amenaza para la salud animal y humana por lo que es una prioridad a nivel mundial el fortalecimiento de los sistemas de diagnóstico frente a probables brotes, de ahí la importancia de la detección por métodos moleculares (RT-PCR y Real time RT-PCR) por su elevada rapidez, sensibilidad y especificidad de estos que permiten tomar las medidas de control para evitar la diseminación del agente. En este trabajo se describe la obtención y evaluación de controles positivos de amplificación y cuantificación para RT-PCR y Real time RT-PCR (RRT-PCR) obtenidos a partir del clonaje de dos productos de PCR, uno correspondiente a una región del gen de la hemaglutinina del subtipo H5 y el otro al gen de la matriz (M) para... |
| Tipo: Journal article |
Palavras-chave: Influenza aviar; Controles positivos de amplificación y cuantificación; Diagnóstico molecular; Influenza. |
| Ano: 2009 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2009000100010 |
| |
|
|
| Garber, Lindsey. |
| The National Animal Health Monitoring System (NAHMS) is sponsored by the USDA:APHIS:Veterinary Services (VS). The NAHMS Equine '98 Study was designed to provide information about the nation's equine population. Twenty-eight states were included in the study. The USDA's National Agricultural Statistics Service (NASS) collaborated with VS to select a statistically-valid sample such that inferences could be made to all equids and operations with equids in the 28 states. For the purposes of the study, equids included domestic horses, miniature horses, ponies, donkeys/burros, and mules. For Part III of the study, data were collected by Federal and State Veterinary Medical Officers and Animal Health Technicians between March 16, 1998, to April 10, 1998, from... |
| Tipo: Report |
Palavras-chave: NAHMS; Horse; Epidemiology; Health; Disease; Vaccination; Stall management; Hoof care; Parasites; Tetanus; Influenza; Encephalitis; Influenza; Herpes virus; Livestock Production/Industries. |
| Ano: 1999 |
URL: http://purl.umn.edu/32745 |
| |
|
|
| Zerbini,Cristiano A.F.; Ribeiro dos Santos,Rodrigo; Jose Nunes,Maria; Soni,Jyoti; Li,Ping; Jain,Varsha K.; Ofori-Anyinam,Opokua. |
| Abstract The World Health Organization influenza forecast now includes an influenza B strain from each of the influenza B lineages (B/Yamagata and B/Victoria) for inclusion in seasonal influenza vaccines. Traditional trivalent influenza vaccines include an influenza B strain from one lineage, but because two influenza B lineages frequently co-circulate, the effectiveness of trivalent vaccines may be reduced in seasons of influenza B vaccine-mismatch. Thus, quadrivalent vaccines may potentially reduce the burden of influenza compared with trivalent vaccines.In this Phase III, open-label study, we assessed the immunogenicity and safety of Southern Hemisphere inactivated quadrivalent influenza vaccine (Fluarix™ Tetra) in Brazilian adults (NCT02369341). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quadrivalent; Influenza; Vaccine; Immunogenicity; Safety; Brazil; Adults. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000100063 |
| |
|
|
| Machado,Clarisse M.; de Souza,Ana Carolina Mamana Fernandes; Romano,Camila Malta; dos Santos Freire,Wilton; Costa,Ângela Aparecida; Figueiredo,Walter Manso; Pannuti,Cláudio S.; Luna,Expedito J.A.. |
| ABSTRACT Introduction Influenza is an important cause of morbimortality worldwide. Although people at the extremes of age have a greater risk of complications, influenza has been more frequently investigated in the elderly than in children, and inpatients than outpatients. Yearly vaccination with trivalent or quadrivalent vaccines is the main strategy to control influenza. Objectives Determine the clinical and molecular characteristics of influenza A and B infections in children and adolescents with influenza-like illness (ILI). Methods: A cohort of outpatient children and adolescents with ILI was followed for 20 months. Influenza was diagnosed with commercial multiplex PCR platforms. Results: 179 patients had 277 episodes of ILI, being 79 episodes of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Influenza; Outpatient; Children; Vaccine; Lineages; Phylogeny; Cohort. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702020000100073 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Bellei,Nancy; Carraro,Emerson; Perosa,Ana; Granato,Celso. |
| Influenza virus infections are associated with high morbidity and mortality. Influenza activity varies worldwide, and regional detection is influenced by geographic conditions, demographic and patient-risk factors. We assessed influenza activity and patterns of seasonality during three consecutive years (2001-2003) in three risk groups in São Paulo city. Four-hundred-twelve outpatients with acute respiratory infection were subjected to epidemiological, clinical and laboratory investigations; these included community population (N=140), health-care workers (N=203), and renal-transplanted patients (N=69). Nasal wash samples were tested by direct fluorescent assay for influenza, parainfluenza, adenovirus, and respiratory syncytial virus. Overall Influenza... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Influenza; Risk groups; Respiratory viral infection. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000400005 |
| |
|
|
| Oliveira,Gabrielle Sales de; Schiavo,Paula Amorim; Mazur,Carlos; Andrade,Cláudio de Moraes. |
| O vírus Influenza A, subtipo H3N8, é o agente etiológico da Influenza Eqüina, responsável por diversas epidemias e endemias respiratórias em nível mundial, inclusive no Estado do Rio de Janeiro, Brasil. O objetivo deste trabalho foi avaliar a importância de eqüídeos errantes, como fontes de infecção do vírus Influenza, subtipo H3N8. A enquete foi realizada a partir da pesquisa de anticorpos específicos para este vírus em 1106 soros analisados através da prova de inibição da hemaglutinação. O elevado percentual (35,9%) de animais soropositivos encontrados evidencia seu papel como uma importante fonte de infecção deste vírus para o rebanho eqüino nacional. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eqüídeos; Influenza; H3N8; Sorologia. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000500038 |
| |
|
| |
|
| |
|
|
| Cumming, Graeme S.; Percy FitzPatrick Institute, DST/NRF Centre of Excellence, University of Cape Town; graeme.cumming@uct.ac.za. |
| Pathogen dynamics are inseparable from the broader environmental context in which pathogens occur. Although some pathogens of people are primarily limited to the human population, occurrences of zoonoses and vector-borne diseases are intimately linked to ecosystems. The emergence of these diseases is currently being driven by a variety of influences that include, among other things, changes in the human population, long-distance travel, high-intensity animal-production systems, and anthropogenic modification of ecosystems. Anthropogenic impacts on ecosystems have both direct and indirect (food-web mediated) effects. Therefore, understanding disease risk for zoonoses is a social–ecological problem. The articles in this special feature focus on... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Disease; Framework; Health; Influenza; Pathogen; Resilience; Social– Ecological system. |
| Ano: 2010 |
|
| |
|
| |
|
|
| Drăgănescu,Anca; Săndulescu,Oana; Florea,Dragoş; Vlaicu,Ovidiu; Streinu-Cercel,Anca; Oţelea,Dan; Aramă,Victoria; Luminos,Monica Luminiţa; Streinu-Cercel,Adrian; Niţescu,Maria; Ivanciuc,Alina; Bacruban,Rodica; Piţigoi,Daniela. |
| ABSTRACT Background: Influenza continues to drive seasonal morbidity, particularly in settings with low vaccine coverage. Objectives: To describe the influenza cases and viral circulation among hospitalized patients. Methods: A prospective study based on active surveillance of inpatients with influenza-like illness from a tertiary hospital in Bucharest, Romania, in the season 2016/17. Results: A total of 446 patients were tested, with a balanced gender distribution. Overall, 192 (43%) patients tested positive for influenza, with the highest positivity rate in the age groups 3–13 years and >65 years. Peak activity occurred between weeks 1 and 16/2017, with biphasic distribution: A viruses were replaced by B viruses from week 9/2017; B viruses... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: A/H3; B/Victoria; ILI; Influenza; SARI; Subtype. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000500377 |
| |
|
|
| Cumming, Graeme S.; Percy FitzPatrick Institute, DST/NRF Center of Excellence, University of Cape Town, Rondebosch, 7701, South Africa; graeme.cumming@uct.ac.za; Hockey, Philip A. R.; Percy FitzPatrick Institute, DST/NRF Center of Excellence, University of Cape Town, Rondebosch, 7701, South Africa; phil.hockey@uct.ac.za; Bruinzeel, Leo W.; Percy FitzPatrick Institute, DST/NRF Center of Excellence, University of Cape Town, Rondebosch, 7701, South Africa; lbruinze@adu.uct.ac.za; Du Plessis, Morne A.; Percy FitzPatrick Institute, DST/NRF Center of Excellence, University of Cape Town, Rondebosch, 7701, South Africa; mornedup@vodamail.co.za. |
| Global analyses of the potential for avian influenza transmission by wild birds have ignored key characteristics of the southern African avifauna. Although southern Africa hosts a variety of migratory, Holarctic-breeding wading birds and shorebirds, the documented prevalence of avian influenza in these species is low. The primary natural carriers of influenza viruses in the northern hemisphere are the anatids, i.e., ducks. In contrast to Palearctic-breeding species, most southern African anatids do not undertake predictable annual migrations and do not follow migratory flyways. Here we present a simple, spatially explicit risk analysis for avian influenza transmission by wild ducks in southern Africa. We developed a risk value for each of 16 southern... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Anatidae; Avian influenza; Botswana; Ducks; Influenza; Landscape ecology; Namibia; Pathogen; South Africa; Virus; Waterfowl; Zimbabwe.. |
| Ano: 2008 |
|
| |
| Registros recuperados: 20 | |
|
|
|
