Covid-19: Cuba’s home-grown vaccines have massively cut case numbers

Four months after hospitals collapsed in Cuba due to skyrocketing covid-19 case numbers, the country has rolled out its own vaccines and cases are down to 5 for every 100,000 people Health 23 December 2021 By Luke Taylor Abdala is one of Cuba’s covid-19 vaccines YAMIL LAGE/AFP via Getty Images Four months after Cuba reported … Read more

FDA greenlights Pfizer’s oral COVID-19 drug | Science

The U.S. Food and Drug Administration (FDA) has granted an emergency use authorization for the potent oral antiviral regimen developed by Pfizer to treat COVID-19, making it just the second such drug to receive a regulatory greenlight by any country. Last month, the United Kingdom authorized the use of a Merck-made pill that appears much … Read more

How a genetic twist in an ‘old’ variant may be driving Omicron and Delta today | Science

The new Omicron variant of the pandemic coronavirus has provided an avalanche of mutations, many never seen before, for scientists to ponder. And as with earlier variants, Omicron researchers are focused on numerous changes to the spike protein, which studs the surface of SARS-CoV-2 and allows it to latch on to and invade human cells. … Read more

Cropland has gobbled up over 1 million square kilometers of Earth’s surface | Science

Farmland is overtaking much of the planet. That’s the conclusion of a new satellite map, which finds that fields of corn, wheat, rice, and other crops have eaten up more than 1 million additional square kilometers of land over the past 2 decades. The study highlights how Earth’s land is becoming, in essence, a unified … Read more

Omicron Is Here: A Lack of COVID Vaccines Is Partly Why

Editor’s Note (12/21/21): This article is being showcased in a special collection about equity in health care that was made possible by the support of Takeda. The article was published independently and without sponsorship. The past few days have been awash with news of the emergence of the latest concerning variant of the virus behind … Read more

What Is a Lagrange Point?

NASA’s James Webb Space Telescope will travel to a special spot where the gravity from Earth and the sun is balanced Credit: Matthew Twombly Advertisement The most ambitious space telescope built to date is about to start peering at the universe through infrared eyes. The $10-billion James Webb Space Telescope (JWST) is designed to see … Read more

The Four Fundamental Forces of Nature

The four fundamental forces act upon us every day, whether we realize it or not. From playing basketball, to launching a rocket into space, to sticking a magnet on your refrigerator – all the forces that all of us experience every day can be whittled down to a critical quartet: Gravity, the weak force, electromagnetism, … Read more

Covid-19 news: Omicron is dangerous despite lower hospitalisation risk

By Michael Le Page, Clare Wilson, Jessica Hamzelou, Sam Wong, Graham Lawton, Adam Vaughan, Conrad Quilty-Harper, Jason Arunn Murugesu and Layal Liverpool Oxford Street, London, UK, on 21 December, 2021 TOLGA AKMEN/AFP via Getty Images Latest coronavirus news as of 12pm on 23 December Omicron’s high transmissibility means it’s still a severe threat despite its … Read more