• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Healthomicron

Omicron infections are showing a ‘very strange symptom’

Marco Quiroz-Gutierrez
By
Marco Quiroz-Gutierrez
Marco Quiroz-Gutierrez
Reporter
Down Arrow Button Icon
Marco Quiroz-Gutierrez
By
Marco Quiroz-Gutierrez
Marco Quiroz-Gutierrez
Reporter
Down Arrow Button Icon
January 3, 2022, 2:38 PM ET

As COVID-19 infections continue to escalate in the new year, some patients have been reporting a strange new symptom: night sweats.

Commonly associated with other conditions like the flu, anxiety, or even cancer, night sweats were less commonly associated with COVID before the Omicron variant began to rapidly spread worldwide. They are repeated episodes of extreme perspiration that can soak your clothes and sheets, according to the Mayo Clinic.  

Night sweats are one of a few distinct symptoms that appear to separate Omicron from other COVID variants, along with a sore throat. And unlike Delta and the original COVID strain that first hit the U.S., Omicron does not seem to be associated with a loss of smell and taste. Dr John Torres, NBC News senior medical correspondent, said on the Today show that the night sweats are a “very strange symptom.” Dr. Amir Khan of the United Kingdom’s National Health Service also said to look out for night sweats as a sign to get tested for COVID-19.

In the past few weeks, many people have vented their frustration about COVID-induced night sweats on social media. Some Twitter users say that the new symptom just adds more confusion and anxiety about whether a person has COVID or not.

I love how now the new Omicron symptom is night sweats. What can cause night sweats, let's count the ways:
The Flu
Menopause
Anxiety
Panic Disorder
A fever from any number of diseases
A heart attack
The fear born continues!

— Boho Evie (@bohun63) January 1, 2022

Others are trying to spread awareness about the new symptom that is becoming increasingly common.

https://www.tiktok.com/@thelolodee_/video/7047222844220067118?_d=secCgYIASAHKAESPgo8aBkECscvj1yQUNo7C3zgpiac9PO6x1g5MFTNa3sx6Q9xhhIJ8jNtURTr%2FTyj79bxLtbQj4N4MWUbcrTrGgA%3Du0026checksum=7e4d1f1b24b3b22ee46af8d3f9fa6e683294155791623e0a7352f5c5e3055f00u0026language=enu0026preview_pb=0u0026sec_user_id=MS4wLjABAAAAFeIe9tHIta-g-djDKXANfFuSyVhtiZrSjMwcMjoNrMtGCOSI4pM7ARYEDWY-ftf9u0026share_app_id=1233u0026share_item_id=7047222844220067118u0026share_link_id=EC7BA0E2-BD92-4043-860E-F5B6E54AA4B5u0026source=h5_mu0026timestamp=1641233884u0026tt_from=copyu0026u_code=d9097elg6a4m9hu0026user_id=6750090941996991493u0026utm_campaign=client_shareu0026utm_medium=iosu0026utm_source=copyu0026_r=1

Although it is now the dominant variant in the U.S., there are still many unknowns about Omicron. Even less is known about its long-term effects. Early research on the Omicron variant from South Africa suggests that the variant may lead to less severe disease. However, the World Health Organization said last week that it is still too early to tell whether the Omicron variant will cause less serious illness because there is not enough data to see how the virus affects the people who are most at risk.

The Omicron variant has now spread worldwide and has helped spur the world to 1.5 million new cases per day, which is double the amount recorded last week. The U.S. also doubled its daily COVID case rate to more than 400,000 cases as of Monday, according to the New York Times.

Never miss a story: Follow your favorite topics and authors to get a personalized email with the journalism that matters most to you.

About the Author
Marco Quiroz-Gutierrez
By Marco Quiroz-GutierrezReporter
LinkedIn iconTwitter icon

Role: Reporter
Marco Quiroz-Gutierrez is a reporter for Fortune covering general business news.

See full bioRight Arrow Button Icon

Latest in Health

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
Fortune Secondary Logo
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Health

Big TechSocial Media
YouTube’s cofounder and former tech boss doesn’t want his kids to watch short videos, warning short-form content ‘equates to shorter attention spans’
By Marco Quiroz-GutierrezMarch 1, 2026
1 day ago
ground beef
HealthTikTok
Gen Z men are eating ‘boy kibble,’ the human equivalent to dog food, to load up on protein cheaply
By Jake AngeloMarch 1, 2026
1 day ago
Healthsleep
8 Best Firm Mattresses in 2026: Tested and Reviewed by Sleep Experts
By Christina SnyderFebruary 27, 2026
3 days ago
HealthFood and drink
Chains like Sweetgreen and Chipotle are finally realizing they need to look beyond the ‘slop bowl’
By Phil WahbaFebruary 27, 2026
3 days ago
chat
Healthchat
Here are the 7 rules of group chats, including how to leave when you’ve had enough
By Kelvin Chan and The Associated PressFebruary 27, 2026
3 days ago
will
CommentaryAdvertising
I’m one of America’s top pollsters and I’ve got a warning for the AI companies: customers aren’t sold on ads
By Will JohnsonFebruary 27, 2026
3 days ago

Most Popular

placeholder alt text
Economy
Your grandparents are the reason the U.S. isn't in a recession right now. That won't last forever
By Eleanor PringleMarch 1, 2026
1 day ago
placeholder alt text
Success
MacKenzie Scott's close relationship with Toni Morrison long before Amazon put Scott on the path to give more than $1 billion to HBCUs
By Sasha RogelbergMarch 1, 2026
24 hours ago
placeholder alt text
Middle East
U.S. military gives Iran a taste of its own medicine with cheap copycat Shahed drones, while concern shifts to munitions supply in extended conflict
By Jason MaMarch 1, 2026
21 hours ago
placeholder alt text
Middle East
As Iran attacks Dubai, the tax-free haven for the global elite could see 'catastrophic' fallout — 'this can also send shockwaves globally'
By Jason MaMarch 1, 2026
22 hours ago
placeholder alt text
AI
American schools weren’t broken until Silicon Valley used a lie to convince them they were—now reading and math scores are plummeting
By Sasha RogelbergMarch 1, 2026
21 hours ago
placeholder alt text
Health
Gen Z men are eating ‘boy kibble,’ the human equivalent to dog food, to load up on protein cheaply
By Jake AngeloMarch 1, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.