1. Cyclical development of Spirochaeta duttoni in lice was observed in seven experiments. In the last four, the same strain was transmitted through four successive batches.
2. The resultant infections in animals behaved exactly like S. duttoni even after the fourth transmission through the abnormal host.
Email your librarian or administrator to recommend adding this journal to your organisation's collection.
* Views captured on Cambridge Core between September 2016 - 27th May 2017. This data will be updated every 24 hours.