New COVID-19 Subvariant NB.1.8.1 Raises Concerns

A new COVID-19 subvariant, NB.1.8.1, is causing concern among health officials. The variant, a descendant of Omicron, was first identified in January 2025 and has since spread to several countries, including Australia, China, the United States, and parts of Europe. While its presence in Spain remains low, the World Health Organization (WHO) is closely monitoring its development. The symptoms are reportedly similar to those of a common cold, leading to some uncertainty and potential for misinformation. "The symptoms are like a regular cold," explains one health expert, "making it difficult to distinguish without testing." However, the WHO emphasizes the importance of continued vigilance and genomic surveillance. The situation highlights the ongoing challenges in managing the COVID-19 pandemic and the need for accurate information to prevent unnecessary panic.