Will WHO declare hantavirus a Public Health Emergency of International Concern before 2027?

Despite a concerning surge in hantavirus cases across South America and a high-profile outbreak aboard the cruise ship MV Hondius, the World Health Organization (WHO) is unlikely to declare hantavirus a Public Health Emergency of International Concern (PHEIC) before January 1, 2027. While the Andes virus strain presents unique risks due to its capacity for limited human-to-human transmission, current epidemiological data suggests the risk remains geographically contained and lacks the "extraordinary" scale or international spread required by International Health Regulations (IHR). The WHO currently assesses the global risk from recent cruise ship incidents as low, and without a massive shift in transmission dynamics—such as sustained, widespread human-to-human outbreaks outside of close-contact settings—the threshold for a PHEIC will not be met within the next seven months.