Ibis are carriers of a variety of diseases, including: – Newcastle disease (a highly contagious, fatal viral infection in poultry) – Histoplasmosis (a serious lung infection caused by a fungus often found in bird droppings) – Salmonella (a type of food poisoning bacteria that can cause severe diarrhea, fever, and abdominal cramps) – Mycobacterium avium complex (an infectious disease that affects the lungs and other organs)