Um, this isn’t great:

Visceral leishmaniasis is usually caused by the species L. donovani and L. infantum. The disease can cause fever, weight loss, anemia, and spleen and liver enlargement, and it’s fatal in more than 95% of cases that aren’t treated. In their presentation, the researchers cautioned that U.S. sand fly populations could be picking up L. infantum by feeding on imported dogs that carry the parasite.