Genomic data reveal a north-south split and introgression history of blood fluke (

Summary: Blood flukes are tiny parasitic worms that cause a serious sickness in humans called schistosomiasis. Scientists recently looked closely at the DNA of these worms. They discovered that the worms are split into two main family trees: one in the North and one in the South. However, a long time ago, these two groups mixed and shared their DNA. This mixing might help the worms survive and adapt better. Understanding the worms' DNA history helps doctors and scientists figure out better ways to stop the parasites and keep people healthy.