IL5 and Increased total eosinophil count: It is also likely that other mediators (or lack thereof), such as eotaxins (along with the precipitous drop in the production of pro-inflammatory, eosinophilia suppressing cytokines such as IFNγ following IAV clearance in the lungs), work in concert with IL-5 to enhance eosinophil accumulation in the lung during the recovery phase [38].