Volume 16, Number 5—May 2010
Letter
Body Lice, Yersinia pestis Orientalis, and Black Death
Appendix Figure

Appendix Figure. Immunofluorescent detection (polyclonal antibody, original magnification ×100) of Yersinia pestis in the feces of body lice during cycles 1 and 2. A) Biotype Antiqua–infected lice feces during cycle 1. B) Biotype Antiqua–infected lice feces during cycle 2. C) Biotype Medievalis–infected lice feces during cycle 1. D) Biotype Medievalis–infected lice feces during cycle 2. E) Biotype Orientalis–infected lice feces during cycle 1. F) Biotype Orientalis–infected lice feces during cycle 2. G) Control lice feces during cycle 1. H) Control lice feces during cycle 2.