Alternaria alternata is one of the most common fungi associated with asthma.
Not only the presence of asthma but also persistence and severity of asthma have been strongly associated with sensitization and exposure to A alternata. Although exposure to Alternaria is an important risk factor for asthma, few studies have assessed exposure to this fungus in indoor environments.
A alternata, a cosmopolitan saprophyte commonly found in soil and plants, is usually considered an outdoor allergen.
Although most intense exposure is likely to occur outdoors, Alternariaand other allergenic fungi are also found in indoor environments.
References:
- Exposure to Alternaria alternata in US homes is associated with asthma symptoms (link)
Alternaria alternata
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