COVID-19: PCR screening of asymptomatic healthcare workers at London hospital (PDF) The Lancet. “If our results are generalisable to the wider HCW population, then asymptomatic infection rates among HCWs tracked the London general population infection curve, peaking at 7∙1% and falling six-fold over 4 weeks, despite the persistence of a high burden of COVID-19 patients through this time (representing most inpatients). Taken together, these data suggest that the rate of asymptomatic infection among HCWs more likely reflects general community transmission than in-hospital exposure.”
Observational Study of Hydroxychloroquine in Hospitalized Patients with Covid-19 NEJM. “In this observational study involving patients with Covid-19 who had been admitted to the hospital, hydroxychloroquine administration was not associated with either a greatly lowered or an increased risk of the composite end point of intubation or death. Randomized, controlled trials of hydroxychloroquine in patients with Covid-19 are needed.”
Pay Attention to Nobel Laureate Michael Kremer on the Pandemic Bloomberg. “[T]he big idea of Kremer and his colleagues is that the urgency of a vaccine is so great that it’s almost impossible to overspend on research, development, and manufacturing for it. What would look like wasteful redundancy in any other context is highly economical in this one.”
Why America Can Make Semiconductors But Not Swabs Bloomberg. “In a typical production process, there are a million-and-one things that can’t be written down. Process knowledge is thus represented by an experienced workforce… What the U.S. really needs to do is reconstitute its communities of engineering practice…. [C]orporate America should start viewing workers not purely as costs to be slashed, but as practitioners keeping alive knowledge essential to the production process.” Let me know how that works out.