An acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or monocytes in the bloodstream; not highly contagious; some believe it can be transmitted by kissing.

synonyms: infectious mononucleosis, kissing disease, mono, mononucleosis.

Dutch: klierkoorts, mononucleosis
Polish: gorączka gruczołowa, choroba pocałunków, angina monocytowa, mononukleoza, mononukleoza zakaźna, choroba Pfeiffera