The first thing you need to do is make sure your chickens are still healthy. If they are for now keep an eye on them. Mold (fungi) is a very serious thing for birds and humans.
I say this because nov. 2007 I underwent a wedge resection of my right lung for what was thought to be cancer. Thank God it was not, but it was a fungus ball called aspergilloma caused by the aspergillius mold that grows in feed, straw, coops, moist conditions.
It can be a very serious thing for you if inhaled and trapped in your lung cavity. The spores are microscopic and they are air-borne. Which is to say that they are in alot of things having to do with nature, dust, moist conditions. That black mold you see on onions is called aspergillius mold. So the doctors could not tell me that mine came solely from raising chickens.
Infectious Diseases
Infectious diseases area caused by four
main types of disease causing agents
(pathogens):
Bacteria (Fowl Typhoid)
Viruses (Avian Influenza)
Fungi (Aspergillosis)
Parasites
Internal
Worms (Round Worms)
Protozoa (Coccidiosis)
External (Poultry Louse)
Aspergillus
What is it?
Aspergillus is a group of moulds, which is found everywhere world-wide, especially in the autumn and winter in the Northern hemisphere. Moulds are also called filamentous fungi. Only a few of these moulds can cause illness in humans and animals. Most people are naturally immune and do not develop disease caused by Aspergillus. However, when disease does occur, it takes several forms.
The types of diseases caused by Aspergillus are varied, ranging from an allergy-type illness to life-threatening generalised infections. Diseases caused by Aspergillus are called aspergillosis. The severity of aspergillosis is determined by various factors but one of the most important is the state of the immune system of the person.
Because of being a smoker all my life, my lungs were damaged so the spore got trapped in one of those damaged cavities of COPD. Because it could not get out, started growing to the size of a golf ball which took several years before symptoms became severe.
I have never seen any mold in my coop, but the spores that you breathe are microscopic.
Does your coop leak? Use a mask when you start scrubbing this stuff and gloves if possible.
Please be careful with mold any where you see it.