Fact check: False hantavirus death claims in Taiwan, May 2026

Taiwan health authorities have confirmed no reports of hantavirus-related deaths in the territory as of early May 2026. This statement refutes widespread misleading narratives on social media platforms, particularly Weibo and Douyin, which claimed new fatalities in Taipei.

The false claims emerged shortly after Taipei Mayor Chiang Wan-an announced a pest control and sanitation campaign across 12 administrative districts to eliminate rats. Chinese media reports further fuelled the hoax by linking the cleanup efforts to civilian deaths from rodent-borne virus.

Official Taiwan CDC data shows only one hantavirus death recorded in 2026 up to 27 May. The fatality occurred on 13 January involving a man in his 70s who succumbed to sepsis and organ failure after exposure to the virus in his home environment.

By end May 2026, Taiwan recorded three total hantavirus infections: Case 1 in January (fatal); Case 2 inMarch (patient recovered and discharged on 30March); Case 3 in May (a 40s patient reported on 19 May and currently receiving treatment). The CDC stated these figures remain within normal ranges, consistent with the average two to three cases reported annually during the same period over the past four years.

globally, concerns rose following a World Health Organization (WHO) report on a rare hantavirus outbreak aboard the cruise ship MV Hondius, en route from Argentina to Cape Verde. By 22 May, 12 cases linked to the vessel were confirmed, including three deaths. Unlike Taiwan’s cases, this outbreak involved the Andes virus, a strain known for human-to-human transmission through prolonged close contact. However, the WHO emphasised the risk to the general population globally remains very low.

Taiwans government urged the public to remain calm and avoid spreading unverified information. Residents were advised to focus on prevention measures such as maintaining cleanliness, blocking rodent access to homes, and safely storing food. Hantavirus typically spreads through infected rodent urine, faeces, and saliva. Currently, there is no specific vaccine or treatment, making rodent population control the primary preventive measure.