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What is the new COVID variant NB.1.8.1?
NB.1.8.1 is a new strain of the COVID-19 virus that has been detected in multiple countries, including India, the UK, and the US. As of June 6, 2025, it is primarily responsible for a surge in active COVID-19 cases in India, where over 5,000 cases have been reported. Health officials are closely monitoring this variant due to its increasing transmissibility.
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How does NB.1.8.1 compare to previous variants?
While NB.1.8.1 appears to be more transmissible than earlier variants, current evidence suggests that it does not cause more severe illness. Health authorities emphasize that most cases remain mild, and there is no indication that existing vaccines are less effective against this variant.
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What countries are most affected by this variant?
As of now, India is experiencing the highest number of active cases attributed to NB.1.8.1. The variant has also been confirmed in the UK and the US, with the UK Health Security Agency reporting 13 cases. Additionally, it has become the dominant variant in China and Hong Kong.
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What should people do to protect themselves?
Health officials recommend that individuals continue to follow public health guidelines, including getting vaccinated and staying updated on booster shots. As cases rise, there may be a return to mask mandates in certain settings, so it's essential to stay informed and adhere to local health advisories.
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Are there any travel restrictions due to NB.1.8.1?
While specific travel restrictions related to NB.1.8.1 may vary by country, travelers should check the latest guidelines from health authorities before planning any trips. It's advisable to stay informed about vaccination requirements and any potential quarantine measures that may be in place.
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What are health officials saying about the situation?
Health officials are closely monitoring the spread of NB.1.8.1 and emphasize the importance of vaccination. They are also prepared to implement measures such as mask mandates if the situation worsens. Public health safety remains a top priority as they assess the impact of this new variant.