Anti-viral immune dysfunction in severe asthma varies across inflammatory phenotypes.

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Common cold viruses often trigger asthma flare-ups , but have relatively minor effects on healthy people. Why this happens is not clear. We have identified two different ways in which the immune system can react badly to a common cold virus in people with asthma. In this study we will find out more about why the immune system does not react normally in a large group of people with severe asthma. This study will help us discover improved treatments that can be targeted to people with asthma.