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Thunderstorm-asthma and pollen allergy.

机译:雷暴哮喘和花粉过敏。

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Thunderstorms have been linked to asthma epidemics, especially during the pollen seasons, and there are descriptions of asthma outbreaks associated with thunderstorms, which occurred in several cities, prevalently in Europe (Birmingham and London in the UK and Napoli in Italy) and Australia (Melbourne and Wagga Wagga). Pollen grains can be carried by thunderstorm at ground level, where pollen rupture would be increased with release of allergenic biological aerosols of paucimicronic size, derived from the cytoplasm and which can penetrate deep into lower airways. In other words, there is evidence that under wet conditions or during thunderstorms, pollen grains may, after rupture by osmotic shock, release into the atmosphere part of their content, including respirable, allergen-carrying cytoplasmic starch granules (0.5-2.5 microm) or other paucimicronic components that can reach lower airways inducing asthma reactions in pollinosis patients. The thunderstorm-asthma outbreaks are characterized, at the beginning of thunderstorms by a rapid increase of visits for asthma in general practitioner or hospital emergency departments. Subjects without asthma symptoms, but affected by seasonal rhinitis can experience an asthma attack. No unusual levels of air pollution were noted at the time of the epidemics, but there was a strong association with high atmospheric concentrations of pollen grains such as grasses or other allergenic plant species. However, subjects affected by pollen allergy should be informed about a possible risk of asthma attack at the beginning of a thunderstorm during pollen season.
机译:雷暴与哮喘的流行有关,尤其是在花粉季节,并且有与雷暴相关的哮喘暴发的描述,这种暴发发生在几个城市,主要发生在欧洲(英国的伯明翰和伦敦以及意大利的那不勒斯)和澳大利亚(墨尔本)和Wagga Wagga)。花粉粒可在地面雷暴中携带,其中花粉破裂会随着源于细胞质的,具有微细粉尘大小的变应原性生物气溶胶的释放而增加,这种气溶胶可渗透至下呼吸道。换句话说,有证据表明,在潮湿的条件下或雷暴期间,花粉粒可能在渗透性冲击作用下破裂后释放到大气中,包括可呼吸的,携带过敏原的细胞质淀粉颗粒(0.5-2.5微米)或可以到达下呼吸道的其他微粉尘成分可导致花粉症患者发生哮喘反应。雷暴-哮喘暴发的特征是,在雷暴开始时,全科医生或医院急诊科对哮喘的就诊迅速增加。没有哮喘症状但受季节性鼻炎影响的受试者可能会遭受哮喘发作。在流行时没有发现异常的空气污染水平,但与高浓度的花粉颗粒(如草或其他变应性植物物种)密切相关。但是,在花粉季节的雷暴开始时,应告知受花粉过敏影响的受试者哮喘发作的可能风险。

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