Table 5 Reference strains and culture conditions used in the study to assess the microbiota in fecal swabs taken at day 5 following infection with E. coli K88

Bacteroides fragilis 2_1_16

FAA^a supplemented with 5% defribinated sheep blood.

Anaerobic, 37 °C

Bifidobacterium longum ATCC 15707

MRS^b agar. Anaerobic, 37 °C

Clostridium clostridioforme 2_1_49FAA

FAA supplemented with 5% blood.

Anaerobic, 37 °C

Clostridium leptum 22–5-S 16 D5 FAA

FAA supplemented with 5% blood.

Anaerobic, 37 °C

Enterobacter aerogenes

TSA^c. Aerobic, 37 °C

Eubacterium limosum 22–5-S 1 BHI

FAA supplemented with 5% blood.

Anaerobic, 37 °C

Lactobacillus acidophilus La-5

MRS agar. Anaerobic, 37 °C