TABLE 3

Frequency distributions of ospA SSCP mobility classes of B. burgdorferi

Mobility classes of ospAb
SampleNaMC1MC2MC3 MC4MC5
Long Islandc
LI-9497404424350
LI-953013812696950
LI-966684016250
East Coast
MA1618520
RI1759410
NY1325181440
CT25513890
NJ1123520
MD11647540
MD2952600
NC1310011
Test of frequency homogeneityd
Among 1997 populations (MA, RI, NY1, NJ, MD1, MD2): P = 0.414 (NS)
LI-96, CT: P = 0.717 (NS)
LI-95, LI-96, CT, NY1: P = 0.207 (NS)
LI-94 vs. (LI-95 and LI-96): P < 0.001
  • a Number of Borrelia-infected ticks.

  • b Number of SSCP bands observed in infected ticks in each sample. Because of multiple infections, the total number of SSCP alleles usually exceeds the number of infected ticks.

  • c Long Island data from Qiu et al. (1997).

  • d P values by Raymond and Rousset's (1995) exact test of population differentiation (NS, nonsignificant).