نتایج جستجو برای: polio enteroviruses
تعداد نتایج: 4940 فیلتر نتایج به سال:
Complete genomic sequences of a non-redundant set of 70 recombinants between three serotypes of attenuated Sabin polioviruses as well as location (based on partial sequencing) of crossover sites of 28 additional recombinants were determined and compared with the previously published data. It is demonstrated that the genomes of Sabin viruses contain distinct strain-specific segments that are eli...
Since 1988, when the World Health Assembly resolved to eradicate polio, the number of polio cases worldwide has decreased from 350,000 to fewer than 800 cases in 2003. This was achieved through high vaccination coverage, augmented by quality surveillance for acute flaccid paralysis (AFP) and mop-up vaccination campaigns. Although the European region was certified “poliofree” in 2002, as long as...
poliomyelitis, an acute viral infectious disease caused by poliovirus, still remains a public health problem in developing countries. despite the global effort to eradicate polio, continuing the polio immunization with a potent and safe vaccine is essential. for accurate vaccine evaluation, three types of cell lines including hela, hep2c and vero were evaluated and compared using two methods of...
background human enteroviruses are members of picornaviridae family; they are non-enveloped, icosahedral viruses with positive rna as genome. echovirus 30 is an important member of enteroviruses that is recognized in outbreaks of enterovirus meningitis. objectives the aim of this study was to determine relative frequency of echovirus 30 as an important agent of aseptic meningitis among children...
a serum survey was conducted to determine the immune status of children 2 months to 6 years old to polio virus type i, ii and iii related to the history of oral polio vaccination in fashapouye (a rural area in the south of teheran). 566 serum samples were obtained from children in 9 different villages and microneutra lization test was performed on 1;10 dilution of these sera. the study revealed...
The study reported in this article was conducted to propose a set graphical and analytical tools and assess their clinical utility by analyzing gait kinematics and dynamics of polio survivors. Phase plane portraits and first return maps were used as graphical tools to detect abnormal patterns in the sagittal kinematics of polio gait. Two new scalar measures were introduced to assess the bilater...
In 2012, the World Health Assembly declared completion of polio eradication a public health emergency. However, wild poliovirus (WPV) transmission remains endemic in three countries (Afghanistan, Nigeria, and Pakistan). In Nigeria, the National Stop Transmission of Polio (N-STOP) program, under the umbrella of the Nigerian Field Epidemiology and Laboratory Training Program (FELTP), has been dev...
Objective Few countries have tested the sensitivity of their polio surveillance systems, undertaken a comprehensive risk assessment or questioned whether existing polio surveillance strategies are the optimal surveillance at this stage of the global eradication initiative. To address this issue, a risk assessment and review of Australia’s polio surveillance systems were undertaken to assess the...
Samples of raw sewage, primary effluent, and secondary effluent from a large activated-sludge purification plant near Melbourne (Victoria, Australia) were collected every second week for 1 year. Viruses were detected in all secondary effluent samples and in six of seven samples obtained after final chlorination. Adenoviruses (85% reduction) and reoviruses (28% reduction) were removed less effic...
A possible etiologic role of enteroviruses for type 1 diabetes has been researched for 40 years, but evidence to date is inconclusive. This article summarizes new evidence from Cuban research supporting a role for enteroviruses, both in preclinical stages of autoimmune reactions against pancreatic β cells and at clinical onset, in a population with low type 1 diabetes incidence. Possible pathog...
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