Now most people know that molds in a house is a big concern for health. And there is one more scientific evidence.

A healthy man with a normal immune system who inhaled mold spores (Aspergillus) while doing gardening work actually died in a few days. This incident is reported in a scientific journal "The Lancet" as well as in the UK press in June 2008.

Mold spores inhaled by human can penetrate deep into lungs and lodged in lungs' aveoli. The mold Aspergillus spores are so small that they are very fit in lungs' aveoli. Mold spores will germinate when warm and wet, while the human immune system will counter-attack.

The overwhelming immune response indeed arrested and shut down the man's system. He died within days from this Aspergillus mold.

The medically termed "mycosis" refers to any infection caused by molds (fungi). The specific term  "invasive aspergillosis" is a mold disease, in which Aspergillus, particularly Aspergillus fumigatus  infects deep into human organs, esp. the human lungs. Aspergillus fumigatus is rated as BSL-2 mold, and constitutes 90% of the human mycotic pathogenic casese due to ints agressiveness and small spores which can fit neatly into human lungs' aveoli.

Scaning micrograph and regular micrograph of Aspergillus.

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