How have the first patients fared after receiving organ transplants from genetically modified pigs? Roni Caryn Rabin, a health reporter on the Science desk of The New York Times, looks at the results so far.

Some scientists are confident that organs from genetically modified pigs will one day be routinely transplanted into humans. But substantial ethical questions remain.

Elizabeth Fusco’s relatives had their usual family dinner in New Jersey in early 2020. Soon, her mother, three siblings and aunt were all dead.