نتایج جستجو برای: influenza
تعداد نتایج: 70693 فیلتر نتایج به سال:
conclusions a(h1n1)pdm09 viruses, identified in this study in shiraz, iran, contained 5 site specific mutations and were susceptible to oseltamivir. results our results revealed that a(h1n1)pdm09 viruses present in these samples were susceptible to oseltamivir, and contained 5 site specific mutations (v13g, v106i, v241i, n248d, and n369k) in na gene. these mutations correlated with increasing e...
Background: Influenza A virus is the most virulent human pathogen and causes the most serious problem. Having epidemiological knowledge about this disease is important. The aim of this study was to determine the prevalence of influenza A/H3N2 virus infection in northern Iran from 2011 to 2013 using the real-time polymerase chain reaction (RT-PCR). Methods: In this cross-sectional study...
Avian influenza virus (AIV) infection is a major cause of bird or human mortality and morbidity, therefore the rapid identification of the virus is of important clinical and epidemiological implication. Methods: A multiplex Reverse Transcriptase PCR (RT-PCR) was optimized for the detection of influenza A virus and the H5 and H9 subtypes. The influenza type A specific primers were directed to t...
Background: Influenza is an acute respiratory illness that can cause hospitalization, and confers a high mortality rate, especially in high-risk groups. Influenza vaccination for hospital staff can play an effective role in controlling nosocomial flu infections. The purpose of this study was to investigate causes of non-vaccina...
Background: Problems of live and inactivated influenza vaccines such as, increasing emerge and re-emerge viruses with high human mortality, current epidemics of influenza and direct transmission of avian viruses to human, affect the vaccination program. DNA vaccines as third generation of vaccines is specially considered for control of influenza in human and poultry. The main advantage of these...
introduction: influenza can cause more severe diseases and higher rate of morbidity and mortality in the elderly population. therefore, they should receive influenza vaccine annually. however, the host response to vaccine is less in older individuals. on the other hand, selenium can act as a stimulator of the immune system and cause increased immunity and response to vaccine. this study was car...
Background: Influenza epidemies which occur mosthly in cold seasons could be a risk factor for developing exacerbations and acute attacks of asthma. Although influenza vaccination is recommended for the asthmatic patients, there is a lack of sufficient clinical evidence that this annual vaccination prevents asthma exacerbation in children. Methods: Prospective clinical trial study of 201 child...
background: influenza a virus is the most virulent human pathogen and causes the most serious problem. having epidemiological knowledge about this disease is important. the aim of this study was to determine the prevalence of influenza a/h3n2 virus infection in northern iran from 2011 to 2013 using the real-time polymerase chain reaction (rt-pcr). methods: in this cross-sectional study 57 sampl...
influenza is an acute respiratory disease caused by the influenza a or b virus. it often occurs in outbreaks and epidemics worldwide, mainly during the winter season. significant numbers of influenza virus particles are present in the respiratory secretions of infected persons, so infection can be transmitted by sneezing and coughing via large particle droplets. the mean duration of influenza v...
Abstract: Introduction: Influenza is highly transmitted disease and vaccination is the most effective way to prevent influenza. This research was designed to study the variation of serum antibody level among the subjects had already been vaccinated against influenza. Materials and Methods: This research is a descriptive-analytical study, which was carried out on 196 subjects who had influenza v...
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