The Centers for Disease Control and Prevention (CDC) is dispatching a team to the Canary Islands, where the hantavirus-affected cruise ship MV Hondius is slated to arrive on Sunday. US passengers from the vessel will be evacuated to an airbase in Nebraska. This developing situation has, however, ignited a debate among health experts regarding the United States' preparedness for such disease threats and the perceived diminished role of the CDC in critical health scares.

Despite the gravity of the situation, much of the initial response to the hantavirus outbreak has been orchestrated by the World Health Organization (WHO), an entity from which the US is no longer a member. The outbreak was first reported to the WHO on May 2nd, with an update two days later confirming seven cases, including three fatalities, one critically ill individual, and three with mild symptoms. The CDC initially stated on Wednesday that it was "closely monitoring the situation," noting that the State Department was spearheading a "whole-of-government response" involving direct passenger contact, diplomatic coordination, and engagement with various health authorities.

It was not until Thursday that the CDC activated its 24/7 emergency center in Atlanta to oversee the hantavirus outbreak, classifying it at its lowest activation level. By Friday, the agency issued its first health alert to US doctors, warning of potential imported cases after at least six American passengers disembarked at St Helena. These passengers are now under monitoring for hantavirus in several US states. A Saturday briefing by the CDC, held via telephone exclusively for invited reporters, saw officials promise public transparency but under guidelines from health secretary Robert F Kennedy Jr.'s aides, speakers could not be cited by name.

Dr. Jay Bhattacharya, director of the National Institutes of Health (NIH), operating independently of the CDC under the Department of Health and Human Services (HHS), defended the response. He posted on X that the "CDC team began coordinating with domestic and international partners as soon as we were notified" and that the CDC, possessing "the world’s leading experts on hantavirus," was lending its technical expertise to coordination efforts.

However, experts and former government health officials have sharply criticized the CDC's response as "feeble" when compared to its handling of similar past outbreaks. Lawrence Gostin, an international public health expert at Georgetown University, remarked, "The CDC is not even a player. I’ve never seen that before." Dr. Jeanne Marrazzo, CEO of the Infectious Diseases Society of America, described the outbreak as a "sentinel event" that exposes the country's lack of preparedness for disease threats. Jennifer Nuzzo, director of Brown University’s Pandemic Center, lamented that the situation "just shows how empty and vapid the CDC is right now," attributing this to thousands of layoffs, including in the agency’s ship sanitation program.

In the US, at least four states—Arizona, Virginia, California, and Georgia—are actively monitoring residents who were aboard the MV Hondius. Health officials in Arizona and Georgia confirmed that the individuals under their surveillance are asymptomatic, while California's health department stated it had "no information that the California residents are ill or infected" and deemed the risk to public health in California as "low." Virginia reported one resident in good health under public health monitoring, with a "low" risk to the general public.

The perceived information vacuum left by the CDC has also been exploited, potentially giving rise to Covid-era alternative theories. Former congresswoman Marjorie Taylor Greene, for instance, posted on X about discussions with alternative medicine medic Mary Talley Bowden, who recommended ivermectin, vitamin D, and zinc for hantavirus. Greene controversially linked these to "natural immunity" developed by those who refused Covid-19 lockdowns, masks, and vaccinations. Gostin drew a stark comparison to the CDC’s proactive and engaged efforts during the Diamond Princess cruise ship quarantine in 2020, noting the current response is delayed and subdued. He also criticized the Trump administration’s preference for bilateral health agreements over WHO channels, arguing such an approach is insufficient for global health crises.