How can dna sequencing be used to identify viruses

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The identification of the cause of SARS provides an example of the great speed that modern DNA sequencing has brought to the detection of infectious diseases. In this activity the user attempts to match an unknown virus with one of 11, sequences. The user will see 11, DNA sequences taken from 1, viruses on the next screen.

When people became ill with SARS, the goal was to learn more about the SARS virus by comparing samples from sick patients to all of these sequences as quickly as possible. Unifying viral genetics and human transportation data to predict the global transmission dynamics of human influenza H3N2.

PLoS Pathogens. The Journal of Infectious Diseases. Kupferschmidt K. Genome analyses help track coronavirus' moves. You may also be interested in. What is coronavirus? The different types of coronaviruses 7 Jul Coronaviruses and disease. Read more. Coronavirus seasonality: Is the spread likely to vary? Was this helpful? Researchers in the Perelman School of Medicine at the University of Pennsylvania, have now identified a previously unknown viral family, which turns out to be the second-most common DNA virus in human lung and mouth specimens, where it is associated with severe critical illness and gum disease, respectively.

The team published their findings today in Cell Host Microbe. Senior authors Frederic D. Collman, MD , a professor of Pulmonary, Allergy and Critical Care, lead the team that discovered this new virus, which they dubbed Redondoviridae. Using this wide-ranging survey of viral sequences as a starting point to compare samples with known viral sequences in public databases, the team, including first authors Arwa A.

Abbas and Louis J.