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What is the NB.1.8.1 COVID variant?
The NB.1.8.1 COVID variant is a new strain of the virus that was first detected in January 2025. Classified by the World Health Organization as a variant under monitoring, it is a descendant of the Omicron variant and has shown increased transmissibility, leading to a rise in cases across Asia, Europe, and the US.
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How does NB.1.8.1 compare to previous variants?
While the NB.1.8.1 variant appears to be more transmissible than earlier strains, health officials do not anticipate it causing more severe illness than other Omicron variants. Current data suggests that it is spreading rapidly but remains manageable in terms of public health risk.
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What precautions should people take against this variant?
Health authorities recommend continued vigilance, especially among vulnerable populations. This includes wearing masks in crowded places, practicing good hand hygiene, and staying updated on vaccination status. Monitoring local health guidelines is also crucial as the situation evolves.
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Are vaccines effective against NB.1.8.1?
Current vaccines are expected to remain effective against severe disease caused by the NB.1.8.1 variant. Health experts emphasize the importance of vaccination as a key tool in managing the spread and impact of this variant, despite its increased transmissibility.
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What is the current situation with NB.1.8.1 cases?
As of mid-June 2025, the NB.1.8.1 variant accounts for an estimated 37% of COVID-19 cases in the US, up from 15% just two weeks prior. In Europe, health officials are also observing a potential increase in cases, but they do not foresee a greater public health risk compared to previous Omicron variants.
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What should I do if I feel unwell?
If you experience symptoms of COVID-19, such as fever, cough, or loss of taste, it is important to get tested and self-isolate until you receive your results. Following local health guidelines and consulting with healthcare providers is essential for managing your health and preventing further spread.