Figure 3C.

Evaluation of live/dead spirochete and round body forms of B. burgdorferi following treatment with five antibiotics measured by fluorescent microscopy using SYTO^®9 green-fluorescent stain (live organisms) and propidium iodide red-fluorescent stain (dead organisms). Visualization of spirochete and round body forms of strain B31 following antibiotic treatment measured by dark field microscopy: (Ca) Control; (Cb) Doxycycline; (Cc) Tinidazole; (Cd) Metronidazole; (Ce) Tigecycline; (Cf) Amoxicillin.

Note: All images taken at 40× magnification.