Fevers in childhood are common and usually self-resolve. In sub-Saharan Africa, when a febrile child presents to a community health worker (CHW), the child is assessed for malaria, pneumonia, and diarrhea, and other danger signs, according to WHO guidelines for integrated Community Case Management (iCCM) of childhood illnesses. In the cases where 1) there are no danger signs present, and 2) malaria, pneumonia, and diarrhea have been ruled out, the World Health Organization (WHO) recommends that all children be reassessed in 3 days. It is hypothesized that health outcomes for these cases will be equivalent if the CHW advises to come back in 3 days only if symptoms have not resolved. In order to assess this hypothesis, a two-arm cluster-randomized, community-based non-inferiority trial in Southern Nations, Nationalities and People's Regional State (SNNPR) in Southwest Ethiopia will be conducted to assess the non-inferiority of CHW-advised systematic follow-up on day 3 compared to conditional follow-up for non-severe febrile illness in children age 2 to 59 months, in which no cause of fever can be identified and where danger signs are absent.