For many Americans, especially conservatives who never accepted the official narrative surrounding COVID-19, recent news involving hantaviruses feels disturbingly familiar.

A deadly outbreak linked to the cruise ship MV Hondius has already spread across multiple countries, triggered international quarantines, and left at least three people dead. Health authorities in the United States, Canada, Europe, and South America are now monitoring dozens of potentially exposed individuals after the virus appeared aboard the expedition vessel carrying 147 passengers and crew from 23 countries.

At the center of the outbreak is the Andes strain of hantavirus — one of the most dangerous hantaviruses known to science. Unlike most hantaviruses, which spread primarily through infected rodent waste, the Andes variant has documented human-to-human transmission. That fact alone has alarmed epidemiologists worldwide.

Now add another troubling development: scientists are actively conducting advanced research on hantaviruses in laboratories, including experiments designed to better understand transmission, infectivity, and viral evolution. To many Americans, that raises a deeply uncomfortable question: after everything the world experienced with COVID-19, why are researchers still performing high-risk experiments on deadly pathogens?

The timing could hardly be worse.

According to international health agencies, the current outbreak has already produced at least 11 confirmed or suspected cases across several countries, including the Netherlands, Germany, Switzerland, Canada, Spain, and the United States. Three people have died.

Health officials say the broader public risk remains “low,” but Americans heard very similar assurances during the early days of COVID-19 in 2020. That memory is impossible to ignore.

Even more concerning is the lethality of hantavirus itself. The CDC estimates that hantavirus pulmonary syndrome carries an approximate fatality rate of 38% in the United States. Some Andes virus outbreaks in South America have shown mortality rates ranging between 30% and 50%. That means the virus can kill roughly one out of every three infected patients — dramatically deadlier than COVID-19.

Those developments are precisely why gain-of-function research remains such a controversial topic.

Gain-of-function experiments generally involve altering viruses to study how they might evolve, spread more efficiently, infect new hosts, or evade immune responses. Supporters claim this research helps scientists prepare vaccines and treatments ahead of future outbreaks. Critics argue it creates unacceptable risks by increasing the danger posed by already deadly pathogens.

That debate exploded after COVID-19.

For years, concerns about risky coronavirus research at the Wuhan Institute of Virology were dismissed as conspiracy theories. Today, multiple U.S. intelligence agencies acknowledge that a lab-related incident is a plausible explanation for the pandemic’s origin. Congressional investigations, leaked documents, and testimony from scientists have only deepened public distrust.

As a result, many Americans no longer automatically trust assurances from scientific institutions or public health agencies when they say dangerous research is “safe.”

And that distrust is not irrational.

Laboratory accidents happen more often than many people realize. According to reports from the U.S. Government Accountability Office and federal oversight agencies, dozens of incidents involving mishandled pathogens have occurred in American labs over the past two decades, including accidental exposures involving anthrax, avian influenza, and smallpox samples.

Now scientists are once again studying viruses with high fatality rates and human transmission potential.

Defenders of the research insist that hantavirus studies are tightly regulated and necessary for preparedness. They argue that understanding transmission mechanisms could save lives if future outbreaks emerge naturally. But critics counter that the same arguments were used to justify risky coronavirus research before COVID devastated the world economy and killed millions globally.

The hantavirus outbreak may ultimately remain contained. Health authorities continue to say there is no evidence of widespread transmission, and experts emphasize that Andes virus spreads far less efficiently than respiratory viruses like COVID-19.

But after the last six years, many Americans are no longer willing to simply “trust the experts” when dangerous pathogens and high-risk laboratory research are involved.

And frankly, given recent history, it is hard to blame them.