['To determine the effects of eosinophilic inflammation on olfactory sensory neuron cell death.', 'Mice were sensitized to intranasal Aspergillus fumigatus extract and subsequently challenged acutely or chronically with the same allergen. The olfactory neuroepithelium was assessed for immunohistochemical evidence of apoptosis and inflammation.', 'Sensitized mice challenged with allergen demonstrated elevated eosinophil infiltration of the respiratory and olfactory mucosae, with olfactory sensory neuron apoptosis. Remarkably, massive neuronal apoptosis without eosinophil infiltration occurred in nonsensitized mice after a single dose of extract.'] Does intranasal Aspergillus fumigatus exposure induce eosinophilic inflammation and olfactory sensory neuron cell death in mice?