May 2025 – Health officials have detected 14 cases of a new COVID subvariant, NB.1.8.1, in Washington state.
The earliest sample dates back to April 7, with the most recent found at Seattle-Tacoma International Airport on May 15.
🔬 Key Facts About NB.1.8.1
First appeared in the U.S. in March/April 2025.
🔹 WHO classified it as a “variant under monitoring” due to the rising global spread.
🔹 No evidence that it causes more severe illness than other strains.
🔹 Current vaccines are still expected to protect against serious cases.
📍 Where Were Cases Found?
🔹 13 detections from Sea-Tac Airport (via CDC’s traveler screening program).
🔹 1 case flagged by the U.S. Air Force School of Medicine.
🔹 Unclear if all infected individuals were Washington residents or just passing through.
⚠️ Should You Be Worried?
| Vaccines are still effective against severe outcomes. | Reassurances |
|---|---|
| Rising global spread. | No signs of increased severity. |
| Limited detection due to fewer tests. | Potential for a new wave if unchecked. |
| Potential for new wave if unchecked. | WHO says public risk remains low. |
🩺 Why Tracking is Harder Now
🔹 Fewer official PCR tests (most people use at-home rapid tests).
🔹 Less genomic sequencing compared to 2020-2023.
🔹 Airport screenings are now a major detection source.
🛡️ How to Stay Protected
✔ Get boosted if you’re due (especially high-risk groups).
✔ Test if symptomatic—early detection helps prevent spread.
✔ Consider wearing masks in crowded places (airports, hospitals).
🔜 What’s Next?
🔹 Health officials will monitor for increased spread.
🔹 If cases rise, the CDC may update vaccine recommendations.
“This is a developing story. Check back for updates on NB.1.8.1’s impact.”
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