Skin Prick Test Negative control, Prick test of Blomia tropicalis extract, Skin Prick Test Positive control clinical trials

Blomia tropicalis allergen extract. Determination of the vivo histamine equivalent prick test units

This study is testing a new way to measure how allergic people are to a specific dust mite called Blomia tropicalis. Researchers will use a simple skin prick test to see how their skin reacts to different strengths of the allergen, along with positive and negative controls.