Researchers create nasal swab test to identify asthma subtypes in children

Researchers at the University of Pittsburgh have created a nasal swab test to diagnose specific asthma subtypes in children. This non-invasive method aims to assist doctors in prescribing appropriate treatments for different asthma endotypes. The study, published in JAMA, analyzed samples from 459 youths, particularly focusing on Puerto Rican and African American children, who experience higher asthma rates. The test identified various endotypes, revealing that 23% to 29% had T2 high, while 35% to 47% had T17-high. This new test could enhance the understanding and treatment of asthma, especially for subtypes that currently lack effective therapies. Researchers believe it may also advance other asthma-related studies.