内容摘要：A helicopter evacuates a car from the village of Blatten, Switzerland, Thursday, May 29, 2025, one day after a massive debris avalanche, triggered by the collapse of the Birch Glacier, swept down to the valley floor and demolished large parts of the village. (Jean-Christophe Bott/Keystone via AP)

A helicopter evacuates a car from the village of Blatten, Switzerland, Thursday, May 29, 2025, one day after a massive debris avalanche, triggered by the collapse of the Birch Glacier, swept down to the valley floor and demolished large parts of the village. (Jean-Christophe Bott/Keystone via AP)

, as cases climb not only here butand Canada. In Mexico, cases have been concentrated in the

— long skeptical of vaccines and— in the northern border state of Chihuahua.Officials say results of their campaign alongside Mennonite leaders have been mixed — they cite tens of thousands of new vaccinations in Chihuahua, but infections have ballooned and spread past the community to Indigenous and other populations.

Mexico is battling its worst measles outbreak in decades, with cases surging in the northern border state of Chihuahua, home to a large Mennonite community wary of vaccines. As infections rise across North America, officials say misinformation and deep-seated distrust of authorities are fueling the crisis. (AP Video: Martín Silva Rey)Federal officials have documented 922 cases and one death in Chihuahua. Officials, health workers and local leaders say the numbers are likely underestimated, and misinformation about vaccines and endemic distrust of authorities are their biggest obstacles.

Pressed against the fringes of the small northern city of Cuauhtemoc, the Mennonite settlement here spans about 40 kilometers (25 miles). With 23,000 residents, it’s one of Cuauhtemoc’s primary economic engines, but it’s an isolated place where families keep to themselves. Some have turned to social media and anti-vaccine websites for research. Others use little technology but visit family in the United States, where they also hear misinformation — which then spreads through word of mouth.

Chihuahua is a particularly worrisome place, officials say — as a border state, the risk that the preventable disease will continue spreading internationally and affect the most vulnerable is high.Researchers feel pressure to show if pig organs can keep people alive much longer than a few months, said eGenesis’ Curtis. If not, the question will be “do we have the right gene edits?”

The balance is choosing participants sick enough to qualify but not so sick they have no chance.“There’s a tremendous number of patients who would be very willing, very willing to do this,” said Dr. Silke Niederhaus of the University of Maryland, who isn’t involved in xenotransplant research but watches it closely.

Niederhaus became a kidney transplant surgeon because around her 12th birthday, one saved her life. That kidney lasted three decades. When it failed, it took five years to find another. So she understands the draw of pig research, and urges people to learn their odds of getting a human kidney before volunteering.If they’re younger, healthier or have a living donor, “I would probably say go with what’s known and what’s proven,” Niederhaus said. But if they’re older and dialysis is starting to fail, “maybe it’s worth taking the risk.”