A new genetic study suggests the coronavirus was carried into California several times by travelers, and that the state missed several opportunities to use contact tracing to stop further spread
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The report, published in the journal Science on Monday, also strongly indicates that at least one cruise ship outbreak started with a virus transmitted by a single person infected with a strain of the virus that spread in Washington state early in the pandemic.It's a small analysis, but helps paint a picture of how a few cases can turn into a pandemic -- and how quick action can stop the spread, said Dr.
The findings also show that travel restrictions can work if they are started early enough and observed carefully."Social distancing interventions, such as the 'shelter-in-place' directive that was issued by the governor of California on March 20, 2020, may assist in stemming spread from community to community," the team wrote.
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