National Geographic | CORONAVIRUS UPDATE

National Geographic

Coronavirus Update

This week: Comparing Omicron and Delta; daily cases soar to new highs; how studying COVID-19 could help Alzheimer's patients.

PHOTOGRAPH BY ARTUR WIDAK, NURPHOTO VIA GETTY IMAGES

Is Omicron really less severe than Delta? Here's what the science says.

This variant is more transmissible. So how do you protect yourself? And what are the implications for vaccines, masks, hygiene, and social distancing?

RELATED: 9 big questions about Omicron explained +

NG STAFF

Omicron continues to drive record surge in cases

Hospitalizations and deaths are also up compared with two weeks ago, as Dr. Anthony Fauci says that Omicron "will, ultimately, find just about everybody."

SEE THE NUMBERS

What we're reading

As Omicron spreads, some experts call for switch to saliva-based tests (New York Times) ››

How often can you safely reuse your KN95 or N95 mask? (Washington Post) ››

PHOTOGRAPH BY CHERYLE ST. ONGE

Could viruses cause Alzheimer's? COVID-19 brain studies offer new clues.

The diseases share some surprising similarities, and experts now think studying COVID-19 patients' brains could lead to better treatments for both conditions.

RELATED: Can COVID-19 alter your personality? Here's what brain research shows. +

MORE ON YOUR HEALTH

PHOTOGRAPH BY JOEL SARTORE, NAT GEO IMAGE COLLECTION

Untangling mysteries of the brain—with the remarkable biology of squid

Breakthroughs in editing squid genomes could lead to a more complete understanding of nervous systems in general—and could eventually lead to improved therapies for neurological and genetic disorders in humans.

ILLUSTRATION BY BIANCA BAGNARELLI

Women's health concerns are dismissed more, studied less

SUBSCRIBER EXCLUSIVE

DAVID GRAY, BLOOMBERG/GETTY IMAGES

Humans have 'stressed out' Earth far longer, than we realized

MORE CORONAVIRUS NEWS

9 big questions about Omicron explained

COVID-19 variants will keep coming until everyone can access vaccines

5 things to know about COVID-19 tests in the age of Omicron

Why new COVID-19 treatments have been so slow to develop

COVID-19 is linked to new diabetes cases—but long-term problems could be more severe

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