Volume 12, Number 7—July 2006
Research
Migratory Passerine Birds as Reservoirs of Lyme Borreliosis in Europe
Figure 4

Figure 4. Frequency distribution of Lyme borreliosis group spirochete load in larvae (A) and nymphs (B). Normal comparison for the distribution of spirochete counts in larvae is shown. Values <1 cell/tick found in 5 larvae and 4 nymphs are excluded from the analysis.