Monthly Archives: July 2020

Sweden separates from immunity to coronavirus

It seemed to be rare good news in a country that has seen a stubbornly high infection rate and has inevitably raised hopes that so-called herd immunity, where an immune group protects a group still susceptible to the disease, could be near. Previous estimates have suggested that herd immunity rates …

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CDC Releases Updated Guidelines for Reopening Schools

The Centers for Disease Control and Prevention have released new guidelines for reopening schools, and authorities said parents should take the initiative in working to prevent COVID-19 from affecting schools. The CDC also released a checklist that includes some homework for parents and a summary of what should happen if …

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Document describing a dinosaur the size of a retracted hummingbird

A CT scan of the Oculudentavis skull by LI Gang, Oculudentavis means eye-tooth bird, named for its distinctive features. Credit: Lars Schmitz The newspaper Nature has issued a retraction for an article he posted on March 11th called “Hummingbird-sized dinosaur from the Cretaceous period of Myanmar.” Editorial staff were alerted …

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