If you could take a simple blood test that could detect multiple types of cancer while they’re still in an early and treatable stage, would you? For many, the answer would be a resounding yes.

Some types of scans include X-rays, computed tomography (CT), magnetic resonance imaging (MRI), and ultrasound scans. Medical professionals use scans to help diagnose a range of health conditions.

A new paper describes a test that can differentiate between different types of asthma via a nasal swab. Researchers hope the test can eventually be used to help match patients with better treatments.