نتایج جستجو برای: influenza a h1n1 virus
تعداد نتایج: 13592803 فیلتر نتایج به سال:
We assessed whether influenza virus hemagglutinin stalk-based immunity protects ferrets against aerosol-transmitted H1N1 influenza virus infection. Immunization of ferrets by a universal influenza virus vaccine strategy based on viral vectors expressing chimeric hemagglutinin constructs induced stalk-specific antibody responses. Stalk-immunized ferrets were cohoused with H1N1-infected ferrets u...
The novel influenza A (H1N1) virus is now rapidly spreading across the world. Early detection is one of the most effective measures to prevent further transmission of the virus. 4 sets of proprietary primers and probes designed for detection of influenza A viruses (InfA), human and swine H1N1 viruses (SH1), the novel H1N1 viruses (NH1) and RNaseP gene (RP) respectively were pooled together in a...
background and aims: influenza is one of the main respiratory infections of humans, responsible for 300,000–500,000 annual deaths world-wide. vaccination is one of the best ways to prevent infections including influenza. influenza virosomes are virus-like particles, which retain the cell binding and membrane fusion properties of the native virus, but lack the ribonucleoprotein (rnp). a virosoma...
CONTEXT Preventing nosocomial transmission of influenza is essential to reduce the morbidity and mortality associated with this infection. In October 2009, an outbreak of the 2009 influenza A (H1N1) virus occurred in a hematology ward of a children's hospital over a 21-day period and involved two patients and four healthcare workers. OBJECTIVE To investigate nosocomial transmission of the 200...
conclusions: among confirmed patients with influenza a (h1n1), the most common symptoms were sequentially cough, dyspnea, chill and myalgia. pcr did not show high sensitivity in diagnosis of influenza a (h1n1) infection. the risk factor with the highest prevalence was heart disease followedby cigarette smoking and hematologic disorder. the mean age of these patients was about 38. results: rt pc...
Pandemic H1N1/2009 influenza virus, derived from a reassortment of avian, human, and swine influenza viruses, possesses a unique gene segment combination that had not been detected previously in animal and human populations. Whether such a gene combination could result in the pathogenicity and transmission as H1N1/2009 virus remains unclear. In the present study, we used reverse genetics to con...
BACKGROUND Acute respiratory infections are a leading cause of morbidity and mortality worldwide. Starting in 2009, pandemic influenza A(H1N1) 2009 virus has become one of the leading respiratory pathogens worldwide. However, the overall impact of this virus as a cause of mortality has not been clearly defined. OBJECTIVES To determine the impact of pandemic influenza A(H1N1) 2009 on mortality...
Since the beginning of January 2008 sporadic cases of infections in humans caused by influenza A (H1N1) virusresistant to available anti-influenza drugs have been reported worldwide [1,2]. The World Health Organization (WHO) in its report published on 18 March 2009 indicated that during weeks 1-4 (28 December 08-24 January 09), the level of overall influenza activity in the world increased. Dur...
BACKGROUND Pregnant women were at increased risk for serious outcomes of 2009 pandemic influenza A virus subtype H1N1 (influenza A[H1N1]pdm09) infection, but little is known about the overall impact of the pandemic on neonatal and maternal outcomes. METHODS We identified live births that occurred from 1 July 2008 through 31 May 2010 in 5 Kaiser Permanente regions. Pregnant women were consider...
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