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Virome refers to the assemblage of viruses [1] [2] that is often investigated and described by metagenomic sequencing of viral nucleic acids [3] that are found associated with a particular ecosystem, organism or holobiont. The word is frequently used to describe environmental viral shotgun metagenomes.
A systematic exploration of the viruses that infect humans (the human virome) is important and feasible with these methods. Polymerase chain reaction is a tool to amplify and detect specific DNA sequences. It can be used to help characterize the virome, but it is limited by the need for at least partial DNA sequence information.
One such surveillance program is the Global Virome Project (GVP) an international collaborative research initiative based at the One Health Institute at the University of California, Davis. [ 29 ] [ 30 ] The GVP aims to boost infectious disease surveillance around the globe by using low cost sequencing methods in high risk countries to prevent ...
An advantage to high throughput sequencing is that this technique does not require cloning the DNA before sequencing, removing one of the main biases and bottlenecks in environmental sampling. The first metagenomic studies conducted using high-throughput sequencing used massively parallel 454 pyrosequencing . [ 17 ]
Tomomics: A combination of tomography and omics methods to understand tissue or cell biochemistry at high spatial resolution, typically using imaging mass spectrometry data. [26] Viral metagenomics: Using omics methods in soil, ocean water, and humans to study the Virome and Human virome.
Sequencing is the only diagnostic method that will provide the full sequence of a virus genome. Hence, it provides the most information about very small differences between two viruses that would look the same using other diagnostic tests. Currently it is only used when this depth of information is required.
One type of sequencing method can be used in preference to another depending on the type of the sample, for a genomic sample assembly-based methods is used; for a metagenomic sample it is preferable to use read-based methods. [10] Metagenomic sequencing methods have provided better results than genomics, due to these present fewer false negatives.
VirCapSeq is a system to broadly screen for all viral infections in vertebrates including humans. [1] It was designed by W. Ian Lipkin, Thomas Briese, and Amit Kapoor at Columbia University.