Hantavirus tests health playbook after Covid-19

An outbreak of the Andes strain of hantavirus on the luxury cruise ship *MV Hondius* in the Atlantic has raised concerns and misinformation, mirroring public reactions during COVID-19. As of Thursday, 11 cases have been confirmed, including three deaths, all among passengers on the ship. Dozens more are being monitored as they return to around 20 countries, but health officials emphasize the virus has not mutated and remains controllable. The response highlights lessons from COVID, where delayed communication, conflicting messaging, and politicization eroded trust in public health institutions. The EU’s European Centre for Disease Prevention and Control (ECDC) and other agencies are now prioritizing clear, empathetic messaging while acknowledging uncertainties. Gianfranco Spiteri, ECDC’s emergencies lead, said officials base their communications on available evidence, avoiding both understatement and alarmism. Despite efforts to reassure the public, social media has amplified fears, with false claims comparing hantavirus to COVID and promoting unproven treatments like ivermectin. Some conspiracy theories suggest the virus is linked to the Pfizer vaccine or a pharmaceutical hoax. Experts, including psychology professor Sander van der Linden, argue for better public education to build resilience against misinformation during outbreaks. Hantavirus, which has circulated in parts of Argentina and Chile for decades, spreads primarily through rodent exposure. Unlike COVID, established measures—such as quarantine and monitoring—can contain its spread. Health officials stress the outbreak is not a pandemic risk but a serious public health event requiring attention. The crisis has also exposed lingering distrust in institutions, with faith in public health agencies declining in 20 of 27 EU countries since 2020. Experts like Gustavo Palacios, a hantavirus specialist at Icahn School of Medicine, urge maintaining perspective, noting the virus rarely spreads among humans. The ECDC and WHO-affiliated communicators are working to improve transparency, sharing information as soon as it is verified to prevent panic.