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I wrote a new piece on how much progress has been made in treating childhood leukemia. The answer is: quite a lot! Before the 1970s, fewer than 10% of children diagnosed survived 5 years after diagnosis. Now most are cured and around 85% survive that long. ourworldindata.org/childhood-le...

In the chart below, you can see the reduction in cancer death rates in the United States among children of different ages. The decline has been particularly large for leukemia, with a 14-fold drop. We’ve also made much progress on other, less common childhood cancers.