ESBL-producing <i>E</i>. <i>coli</i> and <i>E</i>. <i>coli</i> concentrations in poultry manure and the environment.

aFor some of the samples total E. coli was not determined (*): in these cases the number of samples analyzed for ESBL-producing E. coli (a) and E. coli (b) are indicated separately (n = a; b).
bPercentages of samples positive for the indicated bacteria.
c Concentration ranges observed in the positive samples
d Indicated after fly species/family (n = x, y) is the number of pools (x) and the number of flies (y)
cfu = colony forming units; Geo-mean = geometric mean; n.a. = not applicable.
ESBL-producing E. coli and E. coli concentrations in poultry manure and the environment.