The following adverse events were reported more commonly in paediatric Crohn’ s disease patients in the REACH study (see section 5.1) than in adult Crohn’ s disease patients: anaemia (10.7%), blood in stool (9.7%), leukopenia (8.7%), flushing (8.7%), viral infection (7.8%), neutropenia (6.8%), bone fracture (6.8%), bacterial infection (5.8%), and respiratory tract allergic reaction (5.8%).