Inflammation which comprises a rapid, short-lived, relatively uniform response to acute injury or antigenic challenge and is characterized by accumulations of fluid, plasma proteins, and granulocytic leukocytes. An acute inflammatory response occurs within a matter of minutes or hours, and either resolves within a few days or becomes a chronic inflammatory response. [ GOC:add http://purl.obolibrary.org/obo/go/references/0000022 http://openisbn.com/search.php?q=0781735149&isbn=1/ ]