why do respiratory illnesses (such as those caused by Influenza/Sars-Cov-2) make asthma symptoms worse?
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Viruses cause a series of trauma to the lower respiratory tract, including temporary/acute to chronic inflammation. Inflammation of the bronchioles (branches of the mainstem bronchi, which are branches of the trachea or wind pipe)/alveoli (lung’s air sacs) won’t make asthma any better. It could also impact impaired cilia (the small “hairs” that conduct mucus through lower airways). Asthmatic organs are stenotic (narrow) and have slowed mucus clearage, meaning that getting air into those spaces has become a whole lot more difficult. There is also more pressure on the airways. Any old way, asthma sucks, and it sucks worse with lower respiratory damage.
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