Intracardiac and aortic thrombi in capuchin monkeys (Cebus apella).

Massive intracardiac or aortic mural thrombi, probably of septic origin, occurred in six capuchin monkeys (Cebus apella) and accounted for 26% of all adult deaths in a breeding group over a 4-yr period. Previous experimental inoculations with herpes simplex type 2 virus may have contributed to the development of these fatal lesions.