David O, et al. - Authors sought to describe the aetiology, clinical picture and outcome of new-onset neutropenia in immunocompetent children evaluated in the Emergency Department and hospitalized at their medical centre. Findings suggested a rare presentation of severe neutropenia. The age of more than half of the patients was <2 months. In a high number of patients, an infectious aetiology was diagnosed and serious bacterial infections were frequent. They noted the Brucella spp. and rickettsial infections to be frequent etiologies associated with neutropenia.