By Brenda Goodman, CNN Published 3:55 PM EDT, Thu October 19, 2023 Researchers say they’ve detected leishmaniasis, which is spread by sand flies, in a number of samples from patients who say they have not traveled outside the United States.EzumeImages/iStockphoto/Getty ImagesMove over mosquitos. There’s another blood-sucking biter Americans need to guard against because it can spread...