Epidemic thunderstorm asthma in Hohhot, Northern China: A retrospective analysis of clinical characteristics in 155 patients

Epidemic thunderstorm asthma (ETSA) has been documented dozens of times over the past 3 decades in diverse locations worldwide. These incidents are characterized by a substantial increase in asthma presentations, at times exerting overwhelming pressure on local health care services, even resulting in fatalities. Catastrophic ETSA events such as those occurring in locations including Melbourne, Australia offer crucial lessons for the fields of allergy, immunology, and public health.1,2 Thunderstorm asthma (TA) occurs when distinct meteorologic and aerobiologic factors converge to affect susceptible individuals.