How is Aspergillus spread?
Since Aspergillus is so common in the environment, most people breathe in Aspergillus spores every day. It is probably impossible to completely avoid breathing in some Aspergillus spores. For people with healthy immune systems, this does not cause harm, and the immune system is able to get rid of the spores. But for people with compromised immune systems, breathing in Aspergillus spores, especially breathing in a lot of spores (such as in a very dusty environment) can lead to infection. Studies have shown that invasive aspergillosis can occur during building renovation or construction. Outbreaks of Aspergillus skin infections have been traced to contaminated biomedical devices. One example of mold reduction levels that has to be considered is the overall particulate matter (which includes pollen, lint, smut) and the total particulate matter includes all spores (living and dead) and includes harmless cladosporium as well as all other particulates such as pollen and smut counted in the l
