Between 50,000 and 100,000 children in the United States have IBD; of these, 40 percent have UC.

Breakthroughs and therapeutic progress have been achieved for infectious diseases and childhood illnesses, some forms of cancer, nervous disorders, stomach ulcers, asthma, hypertension, etc.

Mouth ulcer and teething treatments containing salicylate salts should not be used by children under the age of 16, UK experts have said.