Dr. Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization, stressed on Tuesday that “there is no sign that we're seeing the start of a larger outbreak.”

He said the process of offloading passengers from the cruise ship was successful and he opened up about the mental struggles those on board were facing.

“Almost 150 people from 23 countries were on this ship for weeks, in what must have been a very frightening situation. Even some of the passengers were facing mental breakdown,” he said at a news conference.

“There were some people around the world calling for the passengers to be contained on the ship for the full quarantine period. Our view was that it would have been inhumane and unnecessary,” he said.

The director-general said that of the 11 reported cases, all are among the ship’s passengers and crew.

“There have been no deaths since May 2, when WHO was first informed of the cluster of cases,” he said. “All suspected and confirmed cases have been isolated and managed under strict medical supervision, minimizing any risk of further transmission.”

-ABC News’ Othon Leyva

Twelve U.S. residents are under monitoring by state health departments for hantavirus, according to officials. None of these 12 people have symptoms, officials said.

Seven of the 12 were cruise ship passengers who disembarked before the outbreak was declared: two are in Texas, two are in Georgia, one is in Virginia, one is in Arizona and one is in California.

The other five people were exposed to an infected individual during air travel, officials said. Two are in New Jersey, two are in Maryland and one is in California, officials said.

-ABC News’ Youri Benadjaoud

The Maryland Department of Health said it is monitoring two residents who were on an overseas flight with a MV Hondius cruise ship passenger who later tested positive for the hantavirus.

Health officials said the monitoring is out of an abundance of caution and that the risk to the public is very low.

“No hantavirus cases have been identified in Maryland since 2019. Andes virus infections have never been reported in Maryland,” the Maryland Health Department said.

-ABC News' Beatrice Peterson

One of the Spanish passengers isolated at Gómez Ulla Hospital in Madrid has tested provisionally positive, bringing the total likely number of hantaviruses case to 11, according to Spanish Health Minister Monica Garcia.

The passenger does not have symptoms, Garcia said. The passenger is isolate in good condition and is under constant monitoring, Garcia said.

“The other 13 passengers have tested provisionally negative. In the coming hours, we will know the definitive results,” Garcia added.

The MV Hondius left on its voyage April 1 from Ushuaia, Argentina.

On April 6, a 70-year-old Dutch passenger fell ill with fever, headache and diarrhea, according to the WHO. That passenger died on April 11.

The ship was between the British island territories of South Georgia and St. Helena in the middle of the South Atlantic, according to data from the ship tracking website MarineTraffic.

The ship sailed on for nearly two weeks, stopping near the island of Tristan da Cunha before reaching St. Helena, where the Dutch man's body was removed on April 24.

A total 29 passengers from 12 countries disembarked while the ship was in Saint Helena.

The Dutch victim's 69-year-old widow also disembarked and flew to South Africa, where she collapsed at an airport there. Two days later, she died from the disease, according to officials.

Another passenger aboard the ship, a German national, died on May 2nd, a day before the ship arrived in Cape Verde.

The next day, the WHO announced it was investigating a suspected hantavirus outbreak on the MV Hondius.

The ship is currently en route to the Canary Islands.