内容摘要：Irwin was still small enough, about as big as a medium-sized dog, for Garrison to corner him near a house, sneak up close and grab him. He carried the kangaroo to a police truck’s back seat and shut the door, as seen in a different officer’s body camera video.

Irwin was still small enough, about as big as a medium-sized dog, for Garrison to corner him near a house, sneak up close and grab him. He carried the kangaroo to a police truck’s back seat and shut the door, as seen in a different officer’s body camera video.

ever transplanted into people came from animals born on this special research farm in the Blue Ridge mountains – behind locked gates, where entry requires washing down your vehicle, swapping your clothes for medical scrubs and stepping into tubs of disinfectant to clean your boots between each air-conditioned barn.“These are precious animals,” said David Ayares of Revivicor Inc., who spent decades learning to clone pigs with just the right genetic changes to allow

The biosecurity gets even tighter just a few miles away in Christiansburg, Virginia, where a new herd is being raised – pigs expected to supply organs for formal studies of animal-to-human transplantation as soon as next year.This massive first-of-its-kind building bears no resemblance to a farm. It’s more like a pharmaceutical plant. And part of it is closed to all but certain carefully chosen employees who take a timed shower, don company-provided clothes and shoes, and then enter an enclave where piglets are growing up.Behind that protective barrier are some of the world’s cleanest pigs. They breathe air and drink water that’s better filtered against contaminants than what’s required for people. Even their feed gets disinfected – all to prevent them from picking up any possible infections that might ultimately harm a transplant recipient.

“We designed this facility to protect the pigs against contamination from the environment and from people,” said Matthew VonEsch of United Therapeutics, Revivicor’s parent company. “Every person that enters this building is a possible pathogen risk.”The Associated Press got a peek at what it takes to clone and raise designer pigs for their organs – including a $75 million “designated pathogen-free facility” built to meet Food and Drug Administration safety standards for xenotransplantation.

Thousands of Americans each year

for a transplant, and many experts acknowledge there never will be enough human donors to meet the need.BLACKSBURG, Va. (AP) — Some people who develop a weird and terrifying allergy to red meat after

can still eat pork from a surprising source:created for organ transplant research.

Don’t look for it in grocery stores. The company that bred these special pigs shares its small supply, for free, with allergy patients.“We get hundreds and hundreds of orders,” said David Ayares, who heads Revivicor Inc., as he opened a freezer jammed with packages of ground pork patties, ham, ribs and pork chops.