Respiratory tract infections caused by viruses ... variable responses that may contribute to asthma symptoms. After upper airway infection and viral replication, epithelial cell lysis occurs ...

These effects extend to the upper airways, potentially worsening ... can irritate the respiratory system and worsen existing ...

Specht at Purdue University, demonstrates the feasibility of using nasosorption to measure trace levels of metals and metalloids in the upper airway. By combining this simple collection method ...