Quick thread on today's @CDCMMWR paper on #coronavirus infections and transmission on cruise ships (https://www.cdc.gov/mmwr/volumes/69/wr/mm6912e3.htm?s_cid=mm6912e3_w …), including the Diamond Princess (DP). /1
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Say it with me: *viral RNA doesn't necessarily mean live virus was present.* Now you're going to see "coronavirus can live on surfaces for 17 days!" over and over, but we don't know that based on this study and for those using live virus, it's much shorter. /7
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It does seem like those who weren't showing symptoms can spread live virus, but that's now expected given several other papers out over the few weeks. Again, how much this drives transmission is uncertain, but shows again why distancing & hygiene are key. /fin
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Addendum: here's one already. Now when your friends post it, you can tell them "well, actually..."https://www.cnbc.com/2020/03/23/cdc-coronavirus-survived-in-princess-cruise-cabins-up-to-17-days-after-passengers-left.html …
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You're on to something Doc! Just drove a friend to Supermarket and noticed nobody grabbing the Sanitation wipes sitting next to the entrance OMG!
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You must wipe those shopping carts and baskets down before touching them! And many were grabbing door handles without thinking
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Any thoughts on what the mechanism might be if it becomes true that hydroxychloroquine and zithromax combination are an effective treatment?
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What is that conclusion based on from that study?
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key unanswered q is public wearing masks if 18-20% are asymptomatic but can spread, does masking help? societies with mask wearing doing better? thoughts? (assume in a shortage HCW first, but if we had enough?)
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I read that the passengers were confined in their cabins, one meal a day behind the door, a moment each day to walk outside. If true, how can 2 positive people at the beginnig have contaminated 700 persons ? By air conditionning ?
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By the time they were confined, it may already have gotten to more than just 2 people. Remember, by the time anyone has symptoms that alert them to the virus presence, they can have been infected (and infectious) for up to 2 weeks.
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More than the RNA find, this one was far more concerning. But I could not find the model data... thoughts?
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Interesting. I was under the impression that asymptomatics were presumed some of the worst spreaders. The extent of which is still being studied? Thanks for clarifying all of this.
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