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You are here: Home / Mold / Acremonium

Acremonium

Dr Jackson Kung'u

Acremonium is a fungal genus formerly known as Cephalosporium.

It is a widespread mold currently believed to contain about 100 species. Most species of this mold exist as saprophytes, being isolated from dead plant material and soil. Some species are parasites of plants and animals capable of causing serious infections. A few species are widely used for producing pharmaceuticals.

Health Significance

Acremonium
Acremonium

Acremonium rarely cause disease in humans. However, infection with Acremonium has been described in immunocompromised patients. It can cause fungal maxillary sinusitis. In medical literature, it has been reported as the cause of pulmonary infections and infections of the cornea and nails in individuals with weak immune systems. There are three main species of Acremonium associated with human infections: Acremonium falciforme, A. kiliense, and A. recifei. The 3 species are biosafety level 2 fungi. Some species have been reported to be allergenic while some are known to produce mycotoxins.

Occurrence of Acremonium in indoor environment

In indoor environment, Acremonium species are primarily isolated from acoustic and thermal fibreglass insulation used in heating ventilation and air conditioning systems, cooling coils, drain pans, windowsills, and water from humidifiers. Anal Beads Also found on carpet and mattress dust, damp or wet walls (especially in basements), gypsum board and wallpaper. The most common species in indoor environment are Acremonium strictum and A. charticola. Acremonium strictum is commonly encountered in wet, cellulose-based building materials suffering from chronic wet conditions. It can also be recovered from outside air samples.

If you found this article helpful, I recommend you also read MBL’s mold type classification guide.

author avatar
Dr Jackson Kung'u
Dr. Jackson Kung’u is a Microbiologist who has specialized in the field of mycology (the study of moulds and yeasts). He is a member of the Mycological Society of America. He graduated from the University of Kent at Canterbury, UK, with a Masters degree in Fungal Technology and a PhD in Microbiology. He has published several research papers in international scientific journals. Jackson has analyzed thousands of mould samples from across Canada. He also regularly teaches a course on how to recognize mould, perform effective sampling and interpret laboratory results. Jackson provides how-to advice on mould and bacteria issues. Get more information about indoor mould and bacteria at www.drjacksonkungu.com.
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