Virus expert sounded alarm on coronavirus spread: One traveler from China infected 39 people in Washington State
As Americans grapple with coronavirus pandemic, virus expert Trevor Bedford sounded alarm today that a single traveler from China infected 39 people in Washington state with China’s coronavirus. Trevor Bedford runs a research laboratory Fred Hutchinson Cancer Research Center in Seattle, said on Tuesday.
On Twitter, Trevor wrote: “Thanks to sequencing by @UWVirology @CDCgov and @seattleflustudy we have genomes for 39 viruses sampled from WA.” He further added: “Importantly 35 of these 39 viruses (90%) fall into a single genetic cluster indicating a single ~Jan introduction from China and subsequent local spread.”
His tweets show how similar mutations in China’s “#SARSCoV2 / #HCoV9 virus” — can be used to track the passage of a particular virus from one individual to others. The chart marks the original carrier and the subsequent victims in red.
By sequencing the genome of the #SARSCoV2 / #HCoV19 virus, we can see which infections are connected to which other infections. See here for background https://t.co/TaH7yonZP1 and @nextstrain https://t.co/JHWNUOwchc for latest analysis. 2/8
— Trevor Bedford (@trvrb) March 16, 2020
By sequencing the genome of the SARSCoV2/HCoV19 virus, they researchers were able to see which infections are connected to which other infections as illustrated in the picture below.