TREATMENT OPTIONS Randomised controlled trials
Few RCTs, few patients/study (error type II)
Few RCTs including children
Heterogeneity (inclusions criteria and end-points)
Different lengths of follow-up
2 Meta-analysis: prophylaxis, chronic LD
USA/Europe: prophylaxis: USA ECM: 9 Europe/5USA arthritis: >> USA neuroborreliosis: >> Europe