Table 1. Description of different pleomorphic forms of B. burgdorferi.

Form	Description of morphology	Size
Spirochaete	Long, corkscrew-shaped	Mean length, 20 µm
Bleb	Spirochaete with membrane bleb	Diameter of bleb, 1.3±0.43 µm*
RB	Spherical	Diameter, 2.8±0.46 µm*
BFL	Colony of mostly spirochaetes; however, blebs and RBs are commonly present. Contains EPS	Consists of more than 10 spirochaetes/blebs/RBs

^*Mean±SD