This is how many people are waiting for an organ transplant in the US

A genetically modified pig's heart has been successfully transplanted into a human for the first time. The operation, performed in Baltimore in the United States on Friday, offers a potential future solution to long transplant waiting lists. Dr. Bartley Griffith, who performed the operation, described the situation on Monday: “It creates the pulse, it creates the pressure, it is his heart,” adding: “It’s working and it looks normal. We are thrilled, but we don’t know what tomorrow will bring us. This has never been done before.”

This infographic takes a look at the size of the transplant waiting list problem in the U.S. According to the Health Resources & Services Administration, almost 120 thousand people were waiting for an organ in September 2021, with a kidney being the most needed (over 97 thousand) by far. A heart transplant was needed by around 3,500 people.

While the operation is being described as a watershed moment, Dr. David Klassen, the chief medical officer of the United Network for Organ Sharing, warns that there is still a long way to go before this is a valid option for a large number of patients: “Doors are starting to open that will lead, I believe, to major changes in how we treat organ failure" but “Events like these can be dramatized in the press, and it’s important to maintain perspective. It takes a long time to mature a therapy like this.”