The ubiquitous flea can host tapeworms, encephalitis, tularemia, and even plague generally associated with the Black Death, which in just six years wiped out a third or more of the European population during the Middle Ages
सॅन्ड फ्लाय नावाच्या माशीच्या शरीरात राहणाऱ्‍या प्रजीवसंघामुळे लेशमॅनिअॅसिस नावाने ओळखले जाणारे रोग होतात.