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Message: <blockquote data-quote="Brownslave688" data-source="post: 4726851" data-attributes="member: 34439">[URL unfurl="true"]https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2774102[/URL]"Specifically, the study looked at how much the virus spread within households. The researchers found that among the studies that met their parameters, the "secondary attack rates" — that is, the likelihood of spread from an infected person to a previously uninfected person within a household — were higher among people who had symptoms than among those who didn’t: 18% for symptomatic individuals vs. 0.7% for asymptomatic individuals."</blockquote>