Immune Systems Advisor

In May 2026, a resurfaced video from the late Vladimir Zelenko (“Dr. Zev” Zelenko) went viral again on X, generating more than 1.5 million views and reigniting debate about zinc, vitamin D, and low-cost antiviral strategies. In the 2-minute clip (video below), Zelenko explains a concept he promoted heavily during the COVID-19 pandemic: many dangerous viruses share the same replication machinery, and therefore may share similar therapeutic vulnerabilities. The video specifically references: COVID-19 Influenza RSV Ebola virus disease Marburg virus disease Hantavirus infections His argument centers on zinc, zinc ionophores, and RNA-dependent RNA polymerase (RdRp), the enzyme many RNA viruses use to replicate. But does the science support the claim? Here’s a balanced, evidence-based review. What Is Hantavirus? Hantaviruses are rodent-borne RNA viruses that can cause severe human disease. Depending on the region and viral strain, infection may lead to: Hantavirus Pulmonary Syndrome (HPS) H...

Two separate viral outbreaks aboard cruise ships in May 2026 have drawn international attention: a rare and deadly hantavirus cluster linked to the expedition ship MV Hondius , and a large norovirus outbreak aboard the Caribbean Princess . While the diseases are very different, both incidents highlight how cruise ships can amplify infectious disease transmission in confined environments. Rare Hantavirus Outbreak Linked to MV Hondius Cruise Ship A multinational outbreak of Andes hantavirus infection aboard the Dutch-flagged expedition cruise ship MV Hondius has resulted in at least eight confirmed or suspected cases and three deaths as of May 2026. ( World Health Organization ) The outbreak began after the ship departed Ushuaia, Argentina, in April 2026. Initial symptoms among passengers included fever, respiratory distress, fatigue, and rapidly progressive lung complications. The cruise later became stranded off Cape Verde before eventually docking in Tenerife in Spain’s Canary Island...

On 2 May 2026, a cluster of passengers with severe respiratory illness aboard a cruise ship was reported to the World Health Organization (WHO). The vessel was carrying 147 passengers and crew members. As of 4 May 2026, seven cases — including two laboratory-confirmed hantavirus infections and five suspected cases — had been identified. Among these cases were three deaths, one critically ill patient, and three individuals with mild symptoms. Illness onset occurred between 6 and 28 April 2026 and was characterized by fever, gastrointestinal symptoms, rapid progression to pneumonia, acute respiratory distress syndrome (ARDS), and shock. Further investigations remain ongoing. The outbreak response includes coordinated international public health measures such as in-depth epidemiological investigations, case isolation and medical care, patient evacuation, and laboratory testing. Human hantavirus infection is primarily acquired through contact with the urine, feces, or saliva of infected ro...