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Table 2 Peak densities and motility in serial passages of B. miyamotoi in MKP-F medium

From: The relapsing fever spirochete Borrelia miyamotoi is cultivable in a modified Kelly-Pettenkofer medium, and is resistant to human complement

Passage Peak density# Motility*
  LB-2001 HT31 LB-2001 HT31
1 12.51 1.91 901 1001
2 15.2 (2.3)2 14.2 (4.2)3 100 (0)2 96.7 (3.3)3
3 21.6 (0.9)2 14.8 (4.7)3 100 (0)2 100 (0)3
4 14.4 (0.6)2 22.3 (5.5)3 100 (0)2 100 (0)3
5 18.1 (4.4)2 15.8 (4.9)3 100 (0)2 100 (0)3
6 11.6 (0.3)2 20.2 (4.2)3 100 (0)2 96.7 (3.3)3
7 15.0 (1.3)2 21.9 (4.5)3 100 (0)2 100 (0)3
8 20.0 (2.5)2 19.6 (6.0)3 100 (0)2 100 (0)3
9 19.1 (9.1)2 24.0 (7.8)3 100 (0)2 100 (0)3
10 16.9 (5.6)2 17.7 (4.5)3 100 (0)2 100 (0)3
  1. B. miyamotoi strains LB-2001 and HT31 were successfully passaged to P10 multiple times. #Mean (±SEM) ×106 spirochetes/ml as determined by dark-field microscopy. *Motility is depicted as the mean percentage of motile spirochetes (±SEM). The number of individual cultures is depicted in superscript.