What is Mold? Before discussing mold health effects, it's important to know what mold is. Mold belongs to a group of organisms called fungi. Mold differ from other fungi in that their body is made of a network of thread-like structures or filaments. For mold to grow in buildings moisture, suitable temperature and food source must be present. Cellulose-containing materials such … [Read more...] about Mold Health Effects- Is Mold a Health Hazard?