THE SIZE OF INFECTIVE VIRUSES.doi:10.1016/S0140-6736(01)16127-1NoneElsevierLancet
A. Viruses. B. New filters. C. Living cells. D. Chemical molecules. 相关知识点: 试题来源: 解析 D 正确答案:D 解析:推理题。题干意为“以下几个选项中,哪个是尺寸最小的?”。根据文章倒数第二段最后一句“…larger than the largest chemical molecules and smaller than the smallest living things...
doubling the size of the known RNA virome29,30,31,32,33. The high diversity of the invertebrate RNA virome suggests that RNA viruses of land plants and vertebrates evolved from viruses infecting invertebrates2. The known RNA viromes of plants, fungi, protists and bacteria have also expanded...
The size of coronaviruses ranges from 60 to 140 nm in diameter, its linearly stranded and positive-sense RNA genome is quite large, ranging from 26 to 32 Kb in size [18,43]. These spherical or pleomorphic viruses have envelopes that contain helical nucleocapsid of nucleoproteins(N) whic...
Similar to other respiratory viruses, including the closely related severe acute respiratory syndrome (SARS-CoV-1) and Middle East respiratory syndrome, the virus can also be transmitted by aerosolized particles [4], mounting evidence supporting the importance of airborne transmission [5,6,7,8] has...
COVID-19, the disease caused by the novel coronavirus, has infected tens of thousands of people worldwide. Here’s what you need to know.
otherunicellular organismslike bacteria, viruses are commonly referred to as particles rather than cells. These particles (virion) are also not alive given that they are unable to grow or multiply on their own. Their size also makes a majority of viruses impossible to see under alight microscope...
The success of many viruses depends upon cooperative interactions between viral genomes. However, whenever cooperation occurs, there is the potential for ‘cheats’ to exploit that cooperation. We suggest that: (1) the biology of viruses makes viral coop
of viruses affecting the eye (flaviviruses, influenza, measles, filoviruses, and others) are enveloped single-stranded RNA viruses [29]. Certain RNA viruses, suggested to be inherently more mutation-prone, have been implicated in EIDs and may prove to be causative pathogens of future pandemics ...
False negatives — which indicate wrongly that someone is clear of infection — are more of a problem. They often result from problems with collecting and processing patient samples. For other viruses, false negative rates of 10 per cent are widely accepted and they can reach as high as 30 ...