Table 1 Oligonucleotide primers used in this study.

C97

5'- GCT ATG ACG GGT ATC C-3'

16S rRNA gene Helicobacteraceae

[19]

C05

5'- ACT TCA CCC CAG TCG CTG-3'

16S rRNA gene Helicobacteraceae

[19]

CAR557f

5'- TGC GTA GGC GGG GTT GTA AG-3'

16S rRNA gene H. felis, H. bizzozeronii, H. salomonis

[20]

CAR636r

5'- CAG AGT TGT AGT TTC AAA TGC-3'

16S rRNA gene H. felis, H. bizzozeronii, H. salomonis

[20]

H. pylori 1

5'-GGA ATT CCA GAT CTA TGA AAA AGA TTA GCA GAA AAG-3'

Urease B gene H. pylori

[21]

H. pylori 2

5'- GGA ATT CGT CGA CCT AGA AAA TGC TAA AGA GTT G-3'

Urease B gene H. pylori

[21]

Heil 1F

5'-GGG CGA TAA AGT GCG CTT G-3'

Urease B gene "Candidatus H. heilmannii"

[21]

Heil 2R

5'-CTG GTC AAT GAG AGC AGG-3'

Urease B gene "Candidatus H. heilmannii"

[21]

H. felis 1

5'- ATG AAA CTA ACG CCT AAA GAA CTA G-3'

Urease B gene H. felis

[21]

H. felis 2

5'-GGA GAG ATA AAG TGA ATA TGC GT-3'

Urease B gene H. felis

[21]

H. bizz 1

5'-GAA GTC GAA CAT GAC TGC AC-3'

Urease B gene H. bizzozeronii

[5]

H. bizz 2

5'-GGT CGC ATT AGT CCC ATC AG-

Urease B gene H. bizzozeronii

[5]

HelINTF1

5'- TGA ATG CTA GTT GTT GCC CTG CTT G-3'

16S rRNA gene emterohepatic Helicobacter spp.

[22]

HelINTR1

5'- TCT CCT TAG AGT GCT CAG CCG AAC T-3'

16S rRNA gene enterohepatic Helicobacter spp.

[22]