[Comparative study of 3 positive controls for routine prick tests in children: 48/80, 1 mg histamine and 5 mg histamine].

We compared, among 153 children 2 to 14 years old, responses to some positive control solutions for prick tests made with a Stallerpoint. We obtained the following values: -6% - 48/80:4.46 +/- 1.