1. What is oral thrush in babies? Oral thrush in babies, also known as hand, foot and mouth disease, is a common infectious disease. It usually occurs in infants and kindergarten children and is mainly caused by the coxsackie virus. It is characterized by blisters and ulcers on the hands, feet, and mouth, accompanied by symptoms such as fever and loss of appetite. 2. The route of transmission of thrush in babies: Coxsackie virus is mainly spread through droplet transmission and contact transmission. The patient\’s saliva, nasal mucus, feces and infected items may be transmission routes. Therefore, you should pay attention to maintaining hygiene in public places such as kindergartens and nurseries.