July 28, 2020
MNM AND JUDGE SIMS SUMMARY FOR JUNE AND JULY
Symptom Duration and Risk Factors for Delayed Return to Usual Health Among Outpatients with COVID-19 in a Multistate Health Care Systems Network — United States, March–June 2020
“…Most studies to date have focused on symptoms duration and clinical outcomes in adults hospitalized with severe COVID-19 (1,2). This report indicates that even among symptomatic adults tested in outpatient settings, it might take weeks for resolution of symptoms and return to usual health. Not returning to usual health within 2–3 weeks of testing was reported by approximately one third of respondents. Even among young adults aged 18–34 years with no chronic medical conditions, nearly one in five reported that they had not returned to their usual state of health 14–21 days after testing. In contrast, over 90% of outpatients with influenza recover within approximately 2 weeks of having a positive test result (7). Older age and presence of multiple chronic medical conditions have previously been associated with illness severity among adults hospitalized with COVID-19 (8,9); in this study, both were also associated with prolonged illness in an outpatient population…”
FROM JOHNS HOPKINS:1. Scent Dog Identification of Samples from COVID-19 Patients – A Pilot Study (BMC Infectious Diseases) Volatile organic compounds produced during respiratory infections can cause specific scent imprints, which can be detected by trained dogs with a high rate of precision. During the presentation of 1012 randomized samples, the dogs achieved an overall average detection rate of 94% (±3.4%) with 157 correct indications of positive, 792 correct rejections of negative, 33 incorrect indications of negative or incorrect rejections of 30 positive sample presentations.
2. PRESS RELEASENIST Launches Investigation of Face Masks’ Effect on Face Recognition Software. Now that so many of us are covering our faces to help reduce the spread of COVID-19, how well do face recognition algorithms identify people wearing masks? The answer, according to a preliminary study by the National Institute of Standards and Technology (NIST), is with great difficulty. Even the best of the 89 commercial facial recognition algorithms tested had error rates between 5% and 50% in matching digitally applied face masks with photos of the same person without a mask. (NIST, 7/27/20)
Covid-19 mask safety: Two or three layers best to protect against virus, study finds
The researchers really wanted to make two points: first, that something is probably better than nothing; and second, a two-layer mask is significantly better than a one-layer mask. And a surgical mask may be even a little better than that.
But none of these masks are perfect, so as a result — even if you’re wearing a surgical mask — there might be viral spread around the layers of those masks.
We know part of the reason masks became such an important tool is that people can spread this even when they’re asymptomatic. It means that masks become crucial whenever you are out and about, even if you feel healthy.
But we still need to maintain physical distance from people, even if you’re wearing masks. If you start to layer these things in — the physical distance, the hand washing and the masking — it can go a long way to prevent the virus from spreading.
What Will Schools Do When a Teacher Gets Covid-19?
Good opinion piece regarding school planning NOW.
Hygiene Theater Is a Huge Waste of Time
…By funneling our anxieties into empty cleaning rituals, we lose focus on the more common modes of COVID-19 transmission and the most crucial policies to stop this plague. “My point is not to relax, but rather to focus on what matters and what works,” Goldman said. “Masks, social distancing, and moving activities outdoors. That’s it. That’s how we protect ourselves. That’s how we beat this thing.”
I changed my iPod’s name to Titanic. It’s syncing now
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