Table 1.

Prevalence of ESBL-producing E. coli in 163 flies caught in Berlin, Germany.

Site	n	ESBL-Positive	%	CI *
H	45	6	13.3	6.3–26.2
Z	50	7	14.0	7.0–26.2
RA	26	0	0	0–12.9
RB	42	8	19.1	10.0–33.3
total	163	21	12.9	8.6–18.9

* Confidence interval 95%; Sites: H—hospital, Z—zoo, RA—residential area A, RB—residential area B.