Abstract: Disclosed are methods for the treatment of a coronavirus infection in a mammal comprising the step of administering to the mammal a therapeutically effective amount of ibrutinib. Also disclosed are disclosed methods of treating a subject for a clinical condition associated with hypercytokinemia, the method comprising: administering to the subject ibrutinib; wherein the subject is identified to have a higher level of at least one pro-inflammatory cytokine in a test sample obtained from the subject compared to a control sample or a reference value, to treat the subject for a mild, moderate, critical or severe form of a clinical condition associated with hypercytokinemia.This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.