Why proposals to largely let the virus run its course — embraced by Donald Trump’s administration and others — could bring “untold death and suffering”.
Samuel V. Scarpino #BlackLivesMatterWithout a vaccine, "herd immunity" strategies for #COVID19 are deeply unethical, will lead to huge loss of life, will cause untold economic damage, & are *very* unlikely to work. Everyone needs to stop & read @cragcrest's *fantastic* new piece in @nature
Amy MaxmenHerd Immunity is not "nature's way."
As @K_G_Andersen says, "Never before have we reached herd immunity via natural infection with a novel virus." The explainer you need by @cragcrest
Bill HanageAnd now @nature explains why we should not seek herd immunity through uncontrolled transmission in the absence of a vaccine
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread rapidly across the globe, causing epidemics that range from quickly controlled local outbreaks (such as New Zealand) to large ongoing epidemics infecting millions (such as the...
Emily S GurleyThere are frequent, new insights into specifics of transmission, but sometimes it's a good idea to step back and look at the big picture. Enjoyed thinking this through with @Ymax@KateGrabowski@JustinLessler and Nik Wada.
The engines of SARS-CoV-2 spread
Vaccine efficacy in high-risk groups and reduced viral shedding are important for protection
Natalie E. Dean, PhDWith @mlipsitch, our new piece in @ScienceMagazine on the open questions that may remain even after vaccine efficacy trials are completed. How well does the vaccine work in high-risk subgroups? And how well does the vaccine reduce onward transmission? 1/5
Predicting how pathogen populations will change over time is challenging. This study predicts population changes in human pathogen Streptococcus pneumoniae after vaccination, using a model of negative frequency-dependent selection acting on...
¿Cuál es la probabilidad de estar expuesto al SARS-CoV-2?
Yamir MorenoLos casos de COVID19 siguen aumentando en España. ¿Cuál es la probabilidad de que al menos un individuo + a SARS-CoV-2 esté presente en un grupo de personas? ¿Es útil limitar los aforos? Para dar respuesta a estas preguntas, hemos creado la plataforma eventosycovid19.espic.twitter.com/fS4bWz1GyR
Humans and viruses have been coevolving for millennia. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, the virus that causes COVID-19) has been particularly successful in evading our evolved defenses. The outcome has been tragic—across...
Carl T. BergstromThere's a paper out in PNAS that features a number of evolutionary psychology speculations about SARS-CoV-2. Some of my friends are coauthors, so I apologize in advance to them, but I don't like parts of the paper, and I want to briefly explain why.
Pooling multiple swab samples prior to RNA extraction and RT-PCR analysis was proposed as a strategy to reduce costs and increase throughput of SARS-CoV-2 tests. However, reports on practical large-scale group testing for SARS-CoV-2 have been scant....
Nick LomanLessons from applied large-scale pooling of 133,816 SARS-CoV-2 RT-PCR tests
Professor John Edmunds, an epidemiologist at the London School of Hygiene & Tropical Medicine, told MPs that the three-tier lockdown system will only slow down the UK's outbreak and not shrink it.
Jeremy FarrarThe tough decisions UK and all of Europe face. There are no easy solutions, every option has negative consequences & trade offs. But later actions are harder, have less impact & need to be deeper, wider geographically & last longer for similar impact.
Widespread school closures occurred during the COVID-19 pandemic. Because closures are costly and damaging, many jurisdictions have since reopened schools with control measures in place. Early evidence indicated that schools were low risk and...
Caroline ColijnUnfortunate events - covid transmission in schools. Punch lines:
Even though most exposures don't cause clusters, variable transmission, variable envt/activity means some do. We look at how control measures play out with this variability. @TallPupper
The findings have prompted the agency to expand how it defines a “close contact” of someone with Covid-19.
Helen BranswellWith evidence that #Covid19 may be easier to catch in some settings than previously understood, @cdcgov updates guidance about who to consider a close contact, @DrewQJoseph reports. Food for thought in here about how we interact indoors over the winter.