Houseflies use several mechanisms to spread pathogens:
- Contact transmission: Pathogens adhere to the fly's body, legs, and wings and are transferred upon contact with food or surfaces. - Regurgitation: Flies vomit partially digested food, which contains pathogens, onto new feeding sites. - Defecation: Houseflies frequently defecate, and their feces can contaminate food and surfaces with pathogens.
