7 States Prepare to Receive Americans Possibly Exposed to Hantavirus

The United States has activated its emergency response infrastructure for the hantavirus cruise ship outbreak, with seven states now monitoring Americans who were aboard the MV Hondius and a CDC team deploying to the Canary Islands to meet the remaining 17 U.S. passengers still on the ship.

The developments mark the most significant domestic response yet to an international health crisis that has killed three people and infected at least six others aboard the Dutch-owned expedition vessel. But the response is also drawing scrutiny for what's missing: a public CDC briefing, transparent data sharing, and the kind of rapid public communication that defined U.S. outbreak response in previous decades.

## What's Happening Right Now

The 17 Americans still aboard the MV Hondius will be evacuated through a carefully orchestrated process in Tenerife. Passengers will be taken to a "completely isolated, cordoned-off" area, then transported via guarded vehicles to a sealed section of the local airport before boarding a repatriation flight.

The flight will land at Offutt Air Force Base in Omaha, Nebraska. From there, passengers will be transported to the National Quarantine Unit at Nebraska Medical Center -- the same facility that housed Ebola patients in 2014 and COVID patients evacuated from the Diamond Princess in 2020.

Dr. Michael Ash, CEO of Nebraska Medicine, said in a statement: "We are prepared for situations exactly like this. Our teams have trained for decades alongside federal and state partners to make sure we can safely provide care while protecting our staff and the broader community."

The quarantine unit has 20 available spaces, each with its own room, food delivery, Wi-Fi, and exercise equipment. Passengers will have their vital signs monitored daily by a team including infectious disease specialists and critical care physicians. If anyone becomes ill, they'll move from quarantine into the hospital's biocontainment unit.

The length of the quarantine has not been announced.

## The States Monitoring Returned Passengers

At least eight Americans who disembarked from the ship on April 24 have already returned to the United States. Seven states are now monitoring them:

- **Georgia**: Monitoring 2 residents who were on the ship - **Texas**: Monitoring 2 residents; both are conducting daily temperature checks and will contact health officials if symptoms develop. "The passengers from Texas are not sick and did not have documented contact with a sick person on the ship, so there is no restriction on their movement," said Chris Van Deusen of Texas DSHS - **Arizona**: Monitoring 1 resident with daily temperature checks for 42 days from departure; the state's epidemiologist said testing would be a local health department decision - **Virginia**: Monitoring 1 resident; the health department stated "a small number" of contacts are being watched - **California**: 1 resident remains on the ship; 1 other returned to the state after disembarking - **New Jersey**: Monitoring 2 residents who were NOT on the ship but were potentially exposed to an infected person "during air travel abroad" - **Nebraska**: Preparing to receive the 17 Americans still on the ship

None of the returned passengers are showing symptoms, and none have been ordered to isolate. Health officials in each state emphasize that hantavirus does not spread person-to-person, so community transmission risk is extremely low.

## The 42-Day Watch Window

Arizona's health department offered the most detailed monitoring protocol: 42 days of observation starting from when the person departed the ship. That's because hantavirus has an incubation period of up to six weeks.

If any monitored person develops symptoms -- fever, fatigue, muscle aches, headache, dizziness, chills, nausea, or abdominal pain -- they would be quarantined at home, cautioned not to travel, and their household members and close contacts would be located and monitored.

"In order for this individual to create a potential risk for the public, there has to be very close contact," said Dr. Joel Tariquez, Arizona's medical director for preparedness.

## What the CDC Is -- And Isn't -- Doing

The CDC has taken several actions:

- Activated its Emergency Operations Center in Atlanta - Deployed a team of epidemiologists and medical professionals to the Canary Islands - Sent a second team to Offutt Air Force Base for the Nebraska quarantine operation - Issued its first health alert to U.S. doctors advising them of possible imported cases - Classified the outbreak as "level 3" -- the lowest level of concern

But what the CDC has not done is notable. As of Saturday, the agency had not held a public briefing. Its first media interaction was a telephone-only call for invited reporters, where officials could not be cited by name. The CDC's Wednesday statement -- a single brief release calling the risk "extremely low" -- was the agency's most visible public communication.

For context: during the 2020 Diamond Princess COVID outbreak, the CDC held daily briefings, sent personnel directly to the port, shared genetic data publicly, and published rapid reports that became global reference data.

The CDC's acting director, Dr. Jay Bhattacharya, said in a social media post that the agency was coordinating with other federal agencies and international authorities. But multiple public health experts have noted that the WHO has taken the lead on the international response -- a reversal of the traditional dynamic.

## How Hantavirus Spreads (And Doesn't)

Understanding why health officials are monitoring but not panicking requires understanding how hantavirus works:

- **Primary transmission**: Exposure to rodent excrement (urine, saliva, feces). The leading theory for the cruise ship outbreak is that rodents aboard the vessel carried the virus. - **It does NOT spread person-to-person** in the hantavirus strains found in the Americas. This is the single most important fact for public reassurance. - **Fatality rate**: Up to 50% in the Americas for hantavirus pulmonary syndrome, according to the WHO. This is what makes the virus dangerous despite its limited transmissibility. - **Incubation period**: Up to 42 days, which is why the 42-day monitoring window exists. - **There is no vaccine, specific treatment, or cure.** Medical care is supportive: oxygen therapy, mechanical ventilation, and intensive care for severe cases.

## What This Means For You

**If you know someone who was on the MV Hondius**, the key fact is this: hantavirus does not spread between people. There is no risk of catching it from a returned passenger who is asymptomatic. The monitoring protocols are precautionary, not an indication of community danger.

**If you're booked on a cruise**, check your ship's Vessel Sanitation Program score on the CDC website. The CDC's cruise ship inspection program has been cut significantly under the current administration, so scores may be outdated. Contact the cruise line directly about their rodent control protocols.

**If you live in Arizona, Georgia, Texas, Virginia, California, New Jersey, or Nebraska**, your state health department is already monitoring the situation. You do not need to take any action unless you are one of the individuals being directly monitored.

**If you develop flu-like symptoms within 6 weeks of any travel to areas with known rodent populations**, inform your doctor of your travel history immediately. Early detection is the most important factor in hantavirus survival.

**The bigger story remains the CDC's capacity.** This outbreak is being well-managed because hantavirus is containable and the number of exposed Americans is small. But the same cannot be said for every future pathogen. The CDC that once led global outbreak response is now issuing single-sentence statements and holding off-the-record briefings. The system held this time. Whether it holds next time depends on decisions being made right now about public health funding and institutional independence.