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Cytokine secretion by human bronchial epithelial cells in response to Alternaria alternata spores. BEAS-2B human bronchial epithelial cells were challenged with 1 × 105 A. alternata wild-type spores and ELISA was used to assay cell-free supernatants for (A) IL8 or (B) CCL2. *p ≤ 0.01 vs. control.
