Mushrooms are important part of varied, balanced diet, also they contains many biologically active compounds, like polysaccharides, terpenoids, etc. which support the immune system. You can read about antibacterial, antiviral and antifungal properties of certain mushroom compounds in the following article, also immunomodulatory properties of certain polysaccharides.
Article The Pharmacological Potential of Mushrooms
Article Immunomodulatory dietary polysaccharides: A systematic revie...
Going against my better judgement, as this is not a question worth answering. Which mushrooms? Resistance to which disease? You should be more specific!
Mushrooms are very useful for health, it act as antibacterial, immune system enhancer and cholesterol lowering agents; additionally, they are important sources of bioactive compounds. As a result of these properties, some mushroom extracts are used to promote human health and are found as dietary supplements. So, the have very close relationship with improve disease resistance.
Have any studies been completed comparing measurable benefits from consuming cultivated mycelium to those from consuming whole wild-harvested fruiting bodies (mushrooms)? Is there a difference between derived products such as tinctures and infusions of various sorts (including "double-extraction" and "triple extraction"), ground mycelium and whole fruiting bodies from cultivated sources and whole wild-harvested fruiting bodies? Many products are offered in the health foods marketplace from all these sources.
but seriously, please look through the publications of my colleague Kamzolkina Olga . We did some research on the topic some time ago, and she is an expert in the field.
many types of mushrooms have a many compounds that improve immune system and activity against bacteria and fungi and viruses like b- glucan ,also many minerals an vitamins