针对细菌和病毒病原体的疫苗已经成功研发,为什么没有对抗真菌的疫苗呢?当真菌孢子接触到潮湿的土壤,它们就会发芽并将次级菌丝扎进土壤吸收足够的营养来长出菌丝。而当病原性真菌孢子在合适的条件下接触人类组织的时候,也会发芽并扎根或是像酵母菌一样繁殖占领其所到之处,然后破坏它们底层的组织。侵袭性真菌疾病一般在人类自然免疫功能减弱的时候袭击 Vaccines against bacteria and viral pathogens have been successfully developed and why there is no vaccine against fungi. When fungal spores contact damp soil, they germinate and plunge secondary hyphae into the soil to absorb enough nutrients to grow mycelia . And when pathogenic fungal spores contact human tissue under the right conditions, they germinate and take root, or multiply like yeast to take their place and destroy the underlying tissues. Invasive fungal diseases generally attack humans when their natural immune function is diminished