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. 2024 Nov 21;132(11):114002. doi: 10.1289/EHP15798

Small green filaments drape a rounded yellow object resting on brown fibers, with elongated, branching threads around it.

The state-of-the-science review suggested greater environmental microbial diversity (portrayed here by fungal hyphae, green and blue, which surround fir pollen, yellow, on woody debris) may play a protective role in the development of asthma, wheeze, or allergic sensitization; evidence for such associations with microbial diversity inside the body was mixed. Image: © Eye of Science/Science Source.