“Is my sore throat, slight cough or runny nose COVID-19?”
It’s a concern that’s still, alas, familiar to many of us in 2025. You go out, perhaps in a crowded space — or gather with friends and family inside for the holidays — and a few days later, you start to feel … a little off. (Or maybe you just start to feel immediately sick and gross.)
Since many folks in the Bay Area gathered this past weekend to celebrate San Francisco Pride, perhaps you’re one of those people waking up this morning wondering if you have COVID symptoms.
COVID-19 levels in Bay Area wastewater may be lower than they were this time last year, but they’re slowly increasing, according to Stanford’s WastewaterSCAN team, which monitors coronavirus presence in human sewage. And this is fueled in part by a new subvariant called NB.1.8.1, dubbed “Nimbus” — reported to bring with it a particularly nasty sore throat among its symptoms.
If that’s you, keep calm and keep reading for what to know about COVID symptoms with the new NB.1.8.1 “Nimbus” variant and where to find a free COVID test. You can also jump to:
What are the COVID symptoms to look for in 2025?
Dr. Peter Chin-Hong, an infectious disease expert at UCSF, confirmed that no surprising wild card symptoms have yet been reported for NB.1.8.1 — they’re the same COVID-19 symptoms you’re used to hearing about from previous variants.
That said, the one symptom that doctors are hearing about from patients is the very painful throat that’s earned the unfortunate nickname “razor blade throat.” Or as Reddit commenters have described it, “like being burned by acid whenever I ate or drank something” and “like my throat was coated in broken glass.”
As with previous variants to reach the Bay Area, Chin-Hong noted that more people also now appear to experience non-respiratory symptoms like diarrhea, nausea and vomiting when they get COVID-19 — gastrointestinal symptoms that folks can often initially dismiss as being unrelated to the virus. So if you’re feeling symptoms that feel more like food poisoning, don’t rule out COVID-19 straightaway.
According to the CDC, this is the full list of the possible symptoms of COVID-19:
- Fever or chills
- Cough
- Shortness of breath or difficulty breathing
- Fatigue
- Muscle or body aches
- Headache
- New loss of taste or smell
- Sore throat
- Congestion or runny nose
- Nausea or vomiting
- Diarrhea.
Remember, you might have a combination of these symptoms or just one. They might be mild or feel more severe. But if you’re experiencing any of these, take a COVID-19 test (more on this below).
Read more about the new NB.1.8.1. variant.

How soon after exposure can I get COVID?
If you’ve heard that incubation times for the virus are getting shorter — that is, the amount of time between getting exposed to COVID-19 and testing positive — it’s true. People are testing positive more quickly than they were in 2020, when the average incubation period was five to seven days, because it has changed with each new variant, Chin-Hong said.

