The US Centers for Disease Control and Prevention is monitoring 41 people in the US for the Andes hantavirus after a cruise ship was hit with a rare outbreak, but the risk to the public remains low, according to health officials.

This includes a group of 18 passengers from the cruise ship who are now in quarantine facilities in Nebraska and Georgia. The agency is also monitoring passengers who returned home before the outbreak was identified and others who were exposed during travel, specifically on flights where a symptomatic case was present.

“Most people under monitoring are considered high-risk exposures, and CDC recommends that everyone under monitoring stay at home and avoid being around people during their 42-day monitoring period,” David Fitter, incident manager for the CDC’s hantavirus response, told reporters during a media briefing on Thursday. “We emphasize not to travel across all these groups.”

The Andes virus is a strain of hantavirus found in South America that can be transmitted from person to person. Typically, hantavirus is passed to humans when they come into contact with rodent droppings or urine. A respiratory virus, the disease can cause difficulty breathing and carries a fatality rate of around 35 percent. As of Thursday, the World Health Organization has confirmed 11 cases of the Andes virus among passengers of the MV Hondius cruise ship, including three deaths.

A Department of Health and Human Services official confirmed to WIRED that all Americans who were on board the Hondius at any point during its journey are now back in the US.

The CDC has legal authority to issue federal quarantine and isolation orders to prevent the spread of certain communicable diseases into or within the US. Fitter said on Thursday that the CDC is not using that authority to manage all 41 of the individuals who were potentially exposed to the hantavirus.

“Our approach is based on risk and evidence,” he said. “We are working closely with passengers and public health partners to ensure monitoring and rapid access to care if symptoms develop. Our goal is to work with them and alongside them, building plans based on their specific situations to protect the health and safety of passengers and American communities.”

Individuals will be monitored for 42 days, which is the amount of time it can take for hantavirus symptoms to appear after exposure. Symptoms begin as flu-like, with fever, muscle aches, and fatigue, then rapidly progress to severe respiratory distress.

MIT master’s student Sunshine Jiang ’25 and Rupert Li ’24 are recipients of this year’s Knight-Hennessy Scholarship. Now in its ninth year, the highly competitive scholarship provides up to three years of financial support for graduate studies at Stanford University. 

Sunshine Jiang  ’25

Sunshine Jiang, from Hangzhou, China, graduated from MIT in 2025 with a bachelor’s degree as a double major in physics and electrical engineering and computer science, along with minors in mathematics and economics. She will receive her master of engineering degree this month and will start her PhD in computer science at Stanford School of Engineering this fall. 

Jiang researches embodied artificial intelligence and robotics, developing data-efficient, adaptive systems for general-purpose robots that broaden accessibility. She has presented her research at major conferences, including the Conference on Robot Learning, the International Conference on Robotics and Automation, and the International Conference on Learning Representations. 

Jiang led the development of AI-powered systems that provide access to traditional Chinese art in rural classrooms, founded cross-country programs that expand girls’ access to STEM education, and created a Covid-19 documentary amplifying community voices, which was featured on China Daily.

Rupert Li ’24

Rupert Li, from Portland, Oregon, is currently pursuing a PhD in mathematics at Stanford School of Humanities and Sciences. He graduated from MIT in 2024 with a bachelor’s degree, double majoring in mathematics and computer science, economics, and data science. Along with his bachelor’s degree, he also received a master’s degree in data science. Li then traveled to the United Kingdom as a Marshall Scholar, where he earned a master’s degree in mathematics from the University of Cambridge.

Li’s research interests lie in probability, discrete geometry, and combinatorics. He enjoys serving as a mentor for MIT PRIMES-USA, a high school math research program, and previously served as an advisor for the Duluth REU, an undergraduate math research program. In addition to the Knight-Hennessy Scholarship and the Marshall Scholarship, he has been awarded the Hertz Fellowship, P.D. Soros Fellowship, and the Goldwater Scholarship, and he received honorable mention for the Frank and Brennie Morgan Prize.

Meta’s decision to track employee keystrokes and mouse data is causing an uproar within the company. “Selfishly, I don’t want my screen scraped because it feels like an invasion of my privacy,” wrote an engineer in an internal post seen by nearly 20,000 coworkers this week. “But zooming out, I don’t want to live in a world where humans—employees or otherwise—are exploited for their training data.”

The message aimed to rally support for a petition circulating inside the company since last Thursday that demands an end to what Meta calls the Model Capability Initiative. It’s a piece of mandatory software that Meta began installing on the laptops of US employees last month. The tool records employees’ screens when using certain apps with the goal of collecting “real examples of how people actually use” computers, including “mouse movements, clicking buttons, and navigating dropdown menus,” according to Reuters. Meta has yet to say whether the initial data is paying off.

“I’m mixed on Al. On one hand, I really enjoy using it to write software. On the other hand, I’m really nervous about its impact on the world,” the engineer wrote in an internal forum for coders. “And what kind of norms are we establishing about how the technology is used, and how people are going to be treated?”

The petition, also seen by WIRED, states that “it should not be the norm that companies of any size are permitted to exploit their employees by nonconsensually extracting their data for the purposes of Al training.”

In the US, employers generally have wide latitude to monitor workers’ devices for security, training, evaluation, and safety purposes. But using these tools to build datasets that instruct AI systems on navigating computers without human supervision appears to be a new tactic—and one that doesn’t sit right with many Meta workers. Over the past few years, several companies have jumped into the race to develop agentic AI models. But when gathering data, they have typically tapped volunteers, sometimes paid, who are willing to have their computer activity recorded.

Meta’s decision to move forward with its tracking tool despite weeks of protest from employees has become one of the leading reasons for what 16 current and former employees recently described to WIRED as record-low morale. It’s also the leading driver of an employee unionization effort at Meta’s UK offices.

“The workplace surveillance and training AI models is the number one thing,” says Eleanor Payne, a representative of United Tech and Allied Workers, which is helping organize Meta employees. She declined to specify the number of employees seeking to form a labor union but called it “significant” and unprecedented.

While only US employees are currently subjected to tracking, UK employees are concerned for their colleagues and the potential for expansion of the program. “I think of it pretty much as a breakdown of trust,” Payne says. New laws that eased unionization in the UK have encouraged employees about the chances of success, she adds.

In Meta offices in California and New York, workers have been posting flyers in cafeterias and other communal areas pointing colleagues to the petition. Two employees, speaking on the condition of anonymity because they were not authorized to speak to the media, say the company has removed some posters, with those on bathroom walls seemingly staying up longer.