acute diarrhea
diarrhea that is of rapid onset and course characterized by frequent loose or liquid bowel movements. Acute diarrhea is a common cause of death in developing countries and the second most common cause of infant deaths worldwide
en-GB/əˈkjuːt ˌdaɪəˈɹɪə/
en-US/əˈkjut ˌdaɪɚˈiə/