How a New Hampshire libertarian utopia was foiled by bears Vox. “It turns out that if you have a bunch of people living in the woods in nontraditional living situations, each of which is managing food in their own way and their waste streams in their own way, then you’re essentially teaching the bears in the region that every human habitation is like a puzzle that has to be solved in order to unlock its caloric payload.”
Evidence of Long-Distance Droplet Transmission of SARS-CoV-2 by Direct Air Flow in a Restaurant in Korea Journal of Korean Medical Science. From the Abstract: “A total of 3 cases were identified in this outbreak, and maximum air flow velocity of 1.2 m/s was measured between the infector and infectee in a restaurant equipped with ceiling-type air conditioners. The index case was infected at a 6.5 m away from the infector and 5 minutes exposure without any direct or indirect contact. Droplet transmission can occur at a distance greater than 2 m if there is direct air flow from an infected person. Therefore, updated guidelines involving prevention, contact tracing, and quarantine for COVID-19 are required for control of this highly contagious disease.” Handy diagram (case B at top right is the index case):
Lambert: My understanding of droplets v. aerosols (and “airborne”). Two aspects: Size and behavior. Droplets, due to size, behave ballistically, like spray; gravity causes them to fall onto surfaces (hence fomite-fighting injuctions like hand-washing and cleaning). Aerosols, due to size, float; they are borne on the air, like cigarette smoke. So when the article says air flow due to air conditioning transmitted “droplets” 6.5 meters, I think aerosol. (There is also no evidence that the index case coughed or sneezed, actions that do spray droplets). The issue is institutionally charged (see here) because if SARS-COV-2 is “airborne,” hospitals — among other players — might have to put some of their capital budgets toward HVAC. Paradigm shifts are hard. I don’t think any of these semantics* need affect personal behavior (and definitely keep washing hands and cleaning surfaces); although one author of the study has “developed a strange, if sensible, habit: whipping out a small anemometer to check the airflow.” NOTE * Yes, one can regard droplets to aerosols as a continuum; but that doesn’t help with the institutional issues at all.
Genomic epidemiology reveals transmission patterns and dynamics of SARS-CoV-2 in Aotearoa New Zealand Nature. From the Abstract: “Despite its remoteness, the viruses imported into New Zealand represented nearly all of the genomic diversity sequenced from the global virus population. These data helped to quantify the effectiveness of public health interventions. For example, the effective reproductive number, Re of New Zealand’s largest cluster decreased from 7 to 0.2 within the first week of lockdown. Similarly, only 19% of virus introductions into New Zealand resulted in ongoing transmission of more than one additional case. Overall, these results demonstrate the utility of genomic pathogen surveillance to inform public health and disease mitigation.”
These aren’t deaths of despair or deaths of ignorance. This community chose how it wanted to kill each other. There is no other way to understand this but as slow-moving mass suicide. Which is their right, I suppose. https://t.co/MVeW2IAIOQ
Lambert here: Our electoral system tends to produce close elections (shifts of a few thousands votes in a few districts determined both 2016 and 2020). It follows that both parties (and their consultants and donors) are heavily incentivized to exploit weak points in the system by any means necessary. If I were to design an electoral system that positively encouraged phishing equilibria (“if a system permits fraud, fraud will already have happened”), it would look a lot like the system the Wisconsin Election Commission — with the best of intentions, under pressure of a pandemic — came up with, as detailed by Judge Ludwig. “Curing” a voter’s address through personal knowledge of the registrar? Really? That might work in a small town… Unfortunately for the plaintiffs, it’s not sufficient to prove that election fraud could have occurred, or even (by the logic of phishing equilibria) that it must have occurred. They must show that it did. This they did not do. As I keep saying, one of my greatest fears for 2020 is a binary thinking-driven discrediting of all the hard work done over the years by analysts who have shown how broken our electoral system is, once that work was seized upon by Trump-suppporting opportunists (“Election 2020 was completely clean, so carry on! And if there’s any hacking in the future, we can rely on the intelligence community to tell us about it!”).
To counter skepticism, Biden is giving leading roles to public health figures like infectious disease expert Anthony Fauci, whom he named chief medical adviser on Covid-19 and Marcella Nunez-Smith, a Yale expert on health disparities who was named his Covid-19 Equity Task Force chair, with a focus on ensuring minority communities have access to the vaccine.