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01 julho 2020

Draft landscape of COVID-19 candidate vaccines (WHO)
CDC recommends face masks, asks Americans to evaluate risk of summer events: CDC says Americans should continue to practice social distancing
Three Months In, Many Americans See Exaggeration, Conspiracy Theories and Partisanship in COVID-19 News: 64% of U.S. adults say CDC mostly gets the facts about the outbreak right; 30% say the same about Trump and his administration
The Road to COVID-19 Enlightenment: Historically, we have bestowed our trust on the basis of science, experience, or divine inspiration. But what if the knowledge we seek does not yet exist, and even science knows that it does not know what is being asked of it?

That is the situation we currently find ourselves in with COVID-19 and the SARS-CoV-2 virus that causes it. Our knowledge of the new coronavirus is rapidly increasing, but utterly inadequate. We have not yet learned much about how to treat the infected, much less figured out how to make an effective vaccine. We do not even know how to control the pandemic reliably through social-distancing measures.
Explainer: how is the vaccine pipeline for Covid-19 looking? As of 29 June, 16 vaccine candidates are in clinical trials. An impressive 129 candidate are in preclinical evaluation.

30 junho 2020

The Shape of Epidemics: Waves have taken pride of place in the COVID-19 crisis, serving not just to predict but also to persuade. As new infections soar in the United States, their special blend of mathematical and moral messaging will help to shape the future of the pandemic.

COVID cases are rising. COVID deaths are declining. Why? This all means a spike in coronavirus cases in any particular location doesn’t necessarily lead to more people dying. In fact, if you look at many of the graphs of case counts and deaths on the New York Times’ coronavirus map, the lines are doing different things. In Arizona, as cases rise, deaths are remaining relatively flat, with the highest number of deaths in a day happening back in May. Alabama saw a recent spike in deaths to accompany a jump in cases, but not as big as the spike in death, also back in May, when case counts were relatively low. In Florida, which hit its highest number of cases yesterday (2,783), the death rate appears to be falling slightly.

This could be in part because there is a delay between being diagnosed with the virus, and dying from it; we just have to wait and see on that front. But it’s also because the rate at which people are dying really depends on who in the population is adding to the case count. In at least a couple states, they tend to be younger.