The World Health Organization (WHO) has recently announced its monitoring of a new COVID-19 variant, designated NB.1.8.1, which has been associated with a notable increase in cases worldwide, particularly in regions such as Europe, Southeast Asia, and both North and South America. This announcement was made last week, highlighting the variant’s emergence and its potential implications for public health.
Current Assessment of the Variant
According to the WHO, preliminary data suggests that the NB.1.8.1 variant does not appear to cause more severe illness compared to other variants currently in circulation. The Singapore Ministry of Health (MOH) and the Communicable Diseases Agency (CDA) have echoed this sentiment, stating that the variants present in Singapore are not exhibiting increased transmissibility or severity compared to previously identified strains.
The NB.1.8.1 variant was first identified in samples collected in January 2025, with a significant rise in cases observed from early April to mid-May. The WHO has committed to ongoing surveillance as more data becomes available from various countries.
Impact on Singapore’s COVID-19 Situation
In Singapore, there has been a recent uptick in COVID-19 cases, with approximately 14,200 reported during the week of April 27 to May 3. Hospitalizations also increased, rising from 102 to 133 during the same period. However, the average number of daily Intensive Care Unit (ICU) cases decreased slightly from three to two.
The MOH has indicated that periodic waves of COVID-19, similar to other endemic respiratory diseases, are expected throughout the year. Vulnerable populations, including individuals aged 60 and above, those with underlying health conditions, and residents of aged care facilities, are particularly encouraged to stay updated with their vaccinations. This includes receiving an additional vaccine dose approximately one year after their last shot.
Vaccination and Public Health Recommendations
Healthcare workers and individuals living or working with medically vulnerable persons are also urged to receive the vaccine. The MOH has confirmed that COVID-19 vaccinations remain available for anyone aged six months and older who wishes to receive a dose.
For those interested in getting vaccinated, doses are accessible at Healthier SG General Practitioner clinics and polyclinics. The public is advised to maintain good personal hygiene practices, minimize social interactions, and avoid unnecessary travel when feeling unwell. Wearing masks in crowded areas or when experiencing symptoms such as a runny nose, sore throat, headache, or fever is also recommended.
Conclusion
As the WHO and local health authorities continue to monitor the situation surrounding the NB.1.8.1 variant, the emphasis remains on vaccination and public health measures to mitigate the spread of COVID-19. The ongoing response to this new variant underscores the importance of vigilance and preparedness in managing the pandemic as it evolves.Bookmark messageCopy messageExport