Product name Species Erythromycin Tetracycline Penicillin Ciprofloxacin
A L. rhamnosusGG S S S R
B B. bifidum
B. breve
B. longum
R
S
S
S
R
S
S
S
S
R
R
R
C L. reuteri S R R R
D L. reuteri S R R R
E B. lactis S R S S
F B. lactis S R S S
G B. lactis S R S S
H B. lactis S R S S
* The DNA of the species was found in the product, but no viable colony could be isolated
Table 2: Susceptibility to antibiotics (R = resistant, S = susceptible).