A) Mean level of antibody reactivity to each of the 14 peptides in PLDS (n=13), post-Lyme healthy (n=9), and non-Lyme healthy (n=16) groups. Error bars represent the standard error of the mean. Among these 14 peptides, reactivity towards 5 peptides, forming 3 contiguous amino acid sequences, was significantly higher in the PLDS group than in the post-Lyme healthy group. These peptides are shown by asterisks (1 asterisk indicates p<0.05, while 2 asterisks indicates p< 0.01 for the comparison between PLDS and post-Lyme healthy groups. B) Frequency of positivity for IgG antibodies to each of the 14 peptides in the PLDS, post-Lyme healthy, and non-Lyme healthy groups.