Causes of death of infant rhesus and squirrel monkeys.

The necropsy records of 144 infant rhesus monkeys and 38 infant squirrel monkeys that died during a 2-year period at the Delta Regional Primate Research Center were reviewed for causes of deaths and other clinically important findings. Bronchopneumonia, enteric diseases, and Streptococcus pneumoniae infections were the most frequent causes of death in infant rhesus monkeys. Trauma was the most frequent cause of death in squirrel monkeys less than 1 month old and bronchopneumonia was the most frequent cause of death in older squirrel monkey infants.