∗ Experimental Poliomyelitis in a Monkey without Demonstrable Lesions in the Central Nervous System

Conclusion

1. A Macacus rhesus monkey infected with the virus of poliomyelitis ran an unusually slow course, which simulated the diphasic type found in the human. 2. The histo-pathological findings of the cerebro-spinal axis were essentially normal, but the diagnosis of poliomyelitis was made by successful passage of cord emulsion into other monkeys.