a close up picture of mould and fungus and other micro organism growth on the bread due to expire of bread

bacteria bad bakery biology black bread brown close closeup danger decay dirty expire expired food fungal fungi fungus germs green growth illness inedible infection isolated loaf macro medical medicine micro microbe microbes microorganism mildew mold molding moldy mould mouldy mucor mucormycosis musty nature old organism penicillin poisonous rotten rotting sarscov2 slice sliced spore toxic unhealthy