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And so, another working week will soon draw to a close. Not a moment too soon, yes? This is, you may recall, our treasured signal to daydream about weekend plans. Once again, our agenda is modest. We plan to hang with a short person or two, promenade with the official mascot, and check in on the Pharmalot ancestors. And what about you? The great outdoors remains appealing, especially if you want to search for pumpkins and apples. Along the way, you could stop to drop off your ballot. You may want to help the economy by stocking up on sweaters. Or reach out to older folks feeling isolated. Well, whatever you do, have a grand time. But be safe — wear a mask. Enjoy, and see you soon. …

Infusing hospitalized Covid-19 patients with blood plasma from people who recovered had no effect on whether patients got sicker or died, STAT says, citing the first completed randomized trial of the treatments. The study could re-energize the debate over whether blood plasma is an effective treatment for the disease. An earlier study, run by the Mayo Clinic, showed blood plasma did yield some benefit, leading the Food and Drug Administration to grant emergency access to the therapy in August. That trial, however, did not have a control arm.

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