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, Abbreviations: AEC: airway epithelial cell · dpi: days postinfection · hMPV: human metapneumovirus · hRSV: human respiratory syncytial virus · N: nucleoprotein · OX40L: OX40 ligand · pi: postinfection · qRT: quantitative reverse transcriptase · TARC: thymus and activationregulated chemokine · TSLP: thymic stromal lymphopoietin · tslpr ?/? : TSLP receptor deficient mice Full correspondence: Dr. Alexis M. Kalergis, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, vol.340