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New omicron subtype BA.2 is spreading quickly

A new subtype of the omicron coronavirus variant is spreading in Denmark, the UK, India, Sweden and many other countries. The exact impact of the genome mutations is still unclear. We already know from the first omicron variant BA.1 that it is significantly more contagious than earlier coronavirus variants. ... Read full article »

Cannabis legalization: Health risks and benefits

Better sex and protection from COVID-19 versus reduced cognitive ability and long-term damage — the science is split when it comes to the risks and uses of the cannabis plant for youth in particular. Dope, weed, marijuana, hemp — cannabis goes by many different names. Humanity has known about the ... Read full article »

Omicron: Germany radically restricts PCR testing. What’s the alternative?

Before the omicron wave completely overwhelms laboratories in Germany, health officials are limiting COVID-19 PCR testing to two groups of people. Can rapid antigen tests reliably bridge the gap? As omicron case numbers skyrocket and health care systems threaten to give way, the German government is ... Read full article »

James Webb Space Telescope reaches final position a million miles away

The world's biggest and most powerful space telescope has reached its observation destination. But there is still a way to go before the telescope can start unraveling mysteries of the universe. The James Webb Space Telescope on Monday reached the spot 1 million miles (1.6 million kilometers) from Earth ... Read full article »

COVID and pregnancy

New studies show how a COVID-19 infection changes the timeline and likelihood of getting pregnant. Read full article »

The secret to Tahiti's healthy coral reef

Across the world, coral reefs are dying as ocean temperatures rise. The warmer the water, the more coral bleaching occurs. But a reef discovered off Tahiti's coast appears to have remained untouched by climate change. Read full article »

COVID-19: African scientists say 'mild omicron' could end pandemic

The rapid spread of omicron had concerned virologists. Now, African scientists are optimistic that the variant could mark the end of the pandemic and the beginning of an endemic. As of Friday, January 21, the coronavirus pandemic had claimed the lives of more than 5.5 million people worldwide. The highly ... Read full article »

Weekly roundup ⁠— Omicron's aftermath

Mass viral infections have consequences. What will omicron's be? Read full article »

Could there be a needle-free COVID vaccine?

Would you rather receive a COVID vaccine via needle or nasal spray? Scientists are working to make nasal COVID vaccines a reality. When we think about COVID vaccines, most of us picture a pointy needle — and some of us might even faint. But what if getting vaccinated was as easy as inhaling a nasal ... Read full article »

What is 'stealth omicron'?

Some virologists are already considering stealth omicron a variant of concern. Should we be worried? Read full article »

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