نتایج جستجو برای: influenza ah3n2
تعداد نتایج: 70693 فیلتر نتایج به سال:
Ten influenza seasons in France: distribution and timing of influenza A and B circulation, 2003–2013
BACKGROUND Describing the circulation of influenza viruses and the characteristics of seasonal epidemics remains an essential tool to optimize the strategies of influenza prevention and control. Special attention has been recently paid to influenza B in the context of the availability of a quadrivalent vaccine, containing two influenza B strains. METHODS We used data from a practitioners-base...
Influenza (the flu) is an acute infectious disease caused by viruses of the Orthomyxoviridae family, causing a wide variety symptoms in humans, ranging from mildly disturbing daily activities to life-threatening pneumonia, depending on state their immune system. The annual increase incidence this called "the flu season", which periodic epidemic that affects people all around world. Despite indi...
background: primary health care workers (phcw) are the front-liners in any infectious disease outbreaks. the recent outbreak of h1n1 influenza demonstrated that uptake of h1n1 vaccination remained low amongst pchw despite its proven effectiveness. this trend is worrying as phcw are the first point of contact in any emerging outbreak of future influenza epidemic. purpose: to investigate factors ...
determining influenza virus shedding at different time points in madin-darby canine kidney cell line
objective: monitoring of influenza virus shedding and optimization of multiplicities of infection (moi) is important in the investigation of a virus one step growth cycle and for obtaining a high yield of virus in vaccine development and conventional basic diagnostic methods. however, eluted infectious viruses may still be present immediately after virus inoculation and when cells are washed fo...
background: avian influenza (ai) viruses have been isolated from a wide diversity of free-living avian species representing several orders. since 1998, h9n2 ai outbreaks have been one of the major problems in iranian poultry industry. in 2006, h5n1 was reported in swans in the north of iran first , but until now there has been no official report from commercial flocks in iran. objectives: the a...
Influenza illness is caused by influenza A and influenza B strains. Although influenza A viruses are perceived to carry greater risk because they account for the majority of influenza cases in most seasons and have been responsible for influenza pandemics, influenza B viruses also impose a substantial public health burden, particularly among children and at-risk subjects. Furthermore, since the...
BACKGROUND To prevent transmission of influenza from healthcare workers (HCWs) to patients, many hospitals exclude febrile HCWs from working, but allow afebrile HCWs with respiratory symptoms to have contact with patients. During the 2013-2014 influenza season at our hospital, an influenza-positive HCW with respiratory symptoms but no fever was linked to a case of possible healthcare-associated...
INTRODUCTION The increased availability of influenza surveillance data in recent years justifies an actual and more complete overview of influenza epidemiology in Latin America. We compared the influenza surveillance systems and assessed the epidemiology of influenza A and B, including the spatio-temporal patterns of influenza epidemics, in ten countries and sub-national regions in Latin Americ...
Colorado became the first state to make laboratory-confirmed influenza-associated hospitalizations a case-based reportable condition in 2004. We summarized surveillance for influenza hospitalizations in Colorado during the first 4 recorded influenza seasons (2004-2008). We highlight the similarities and differences among influenza seasons; no 2 seasons were entirely the same. The 2005-06 influe...
Introduction: Avian influenza viruses are considered as a serious threat to human and animal health. An increase in expression of proinflammatory cytokines and type I IFN genes, as well as host cell death responses contribute to the pathogenesis of influenza infection. Hence, this study aimed to evaluate the growth dynamics of subacute avian influenza virus in human respiratory alveolar epithel...
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