Acute Infectious Lymphocytosis

Abstract

1. Case reports are presented of 5 cases of acute infectious lymphocytosis in siblings, ages 2¼-10 years. Symptoms included diarrhea, abdominal pain, vomiting, fever and cough. There was an absolute lymphocytosis lasting about three weeks. All of the cases had elevated eosinophil counts during the course of the disease. Four of the 5 had an eosinophilia lasting several months. 2. The clinical features are reviewed. 3. The morphology of the lymphocytes is discussed in detail.

Acute Infectious Lymphocytosis

“…It is also possible that some of the contacts may be infected without developing fully characteristic blood changes; this may have happened, for instance, in the second brother of Case 1. The incidence among members of the same family has been observed before (Smith, 1944;Moyer and Fisher, 1950) and is well illustrated by the present cases.…”