Rapidly spreading COVID variant triggers fresh warnings — these are the symptoms doctors urge you to track

A new COVID variant called NB.1.8.1 is spreading fast in the world. It was first found in China in January 2025. Now, it makes up 10% of all COVID samples globally, which is a big jump from 2.5% four weeks ago, as per reports.

The CDC said they’re in touch with other countries about this variant. So far, only 20 cases have been found in the US, so it’s not on the CDC COVID tracker yet. Doctors say this new variant causes similar symptoms to the older ones.

The main signs are a dry cough that stays for long, blocked or runny nose, and feeling very tired. You may also get fever, chills, sore throat, and pain in your body. Most people can still do their normal things, but they’ll feel more tired than usual, as per HuffPost report.


There’s no proof that NB.1.8.1 causes worse sickness or more people going to the hospital or dying. It has some new mutations on the spike protein that may help it spread faster and avoid the immune system. That means your body might not stop the virus as well as before, as per WHO.

Scientists think the vaccines will still protect you from serious illness. NB.1.8.1 comes from the Omicron JN.1 family, which the 2024-2025 vaccines are made to fight. Vaccines might not fully stop infection, but they still help prevent serious problems.

If you're older, have health problems, or take immune-lowering medicines, you should get vaccinated if it’s been over 6 months since your last dose. If you’re young and healthy, you probably don’t need another shot right now, as per the HuffPost report.

Most people can get better by just resting at home and drinking lots of fluids. If you have fever or body pain, you can take acetaminophen or ibuprofen. Normally, you’ll feel better in about a week.

If you are older or have a weak immune system, talk to a doctor. Doctors may give you antiviral pills like Paxlovid or Molnupiravir. These medicines work best within 5 days after symptoms start.

Go to the hospital if you have chest pain, can’t wake up or stay awake, feel confused or dizzy. The biggest red flag is trouble breathing , get help immediately if this happens, as per the HuffPost report.

FAQs

Q1. Do I need the vaccine for this new variant?
Yes, if you are old, sick, or got your last shot over 6 months ago.

Q2. Is there a new COVID virus?
Yes, the new COVID variant is called NB.1.8.1.